Mohammed Abdulwahid - Academia.edu (original) (raw)

Papers by Mohammed Abdulwahid

Research paper thumbnail of Investigation of the Static Pressure Drop and Production that Occurs due to Flow Patterns in a Perforated Horizontal Wellbore

WSEAS transactions on fluid mechanics, May 28, 2024

This study examined the intricate interaction between flow patterns and production within a perfo... more This study examined the intricate interaction between flow patterns and production within a perforated horizontal wellbore. The study precisely assessed the behavior of static pressure drop by utilizing an array of flow regimes encompassing bubble, dispersed bubble, transitional bubble/slug, slug, stratified, transitional slug/stratified wave, and stratified wave. Remarkably, an upward trend in static pressure drop was observed with increasing water phase presence, while the converse was true for the air phase. Besides, the air phase superficial velocity exhibited a direct correlation with the magnitude of pressure drop fluctuations. The liquid production demonstrated a peak during bubble and slug flow regimes, followed by a descent during the transition to stratified and stratified wave flow. This decline can be attributed to mixing pressure drops localized during the perforations. Furthermore, an upward trend in average liquid production was observed with increasing mixture superficial velocity, primarily due to the dominant presence of the water phase. Additionally, the percentage of liquid production was positively associated with the water's superficial velocity when the air's superficial velocity was held constant. While the experimental and numerical results were in agreement for slugs and structured flows, there were discrepancies in the behavior of static pressure for bubbles, small bubbles, and structured waves.

Research paper thumbnail of Numerical and experimental study of the impact on aerodynamic characteristics of the NACA0012 airfoil

Open Engineering, 2024

Using computational models and low-speed wind tunnel tests, the aerodynamic characteristics of th... more Using computational models and low-speed wind tunnel tests, the aerodynamic characteristics of the NACA 0012 airfoil with low Re numbers of (8 × 10 4 , 2 × 10 5 , 3 × 10 5 , and 4 × 10 5) and angle of attack (AOA) ranging from 0°t o 18°by two steps are examined. Using the same 3-D wind tunnel dimensions, numerical simulations were run. The software program ANSYS FLUENT was used to solve the mathematical model using the continuity equation, the Navier-Stokes equations, and the k-ω shearstress transport turbulence model. Findings demonstrate that at all AOAs, there is a direct relationship between Reynolds numbers (Re), lift and drag coefficients, kinetic energy, and stall angle. The lift coefficient rises linearly as the AOA increases, peaking at 14°, the stall angle at higher Reynolds number. The lift coefficient was found to decline when the AOA was increased further, reaching its minimal value at an AOA of 18°. With a greater AOA, the airfoil's drag coefficient rises, creating turbulent flow. The eddies produced by the turbulence cause the flow to start separating from the airfoil surface as turbulence increases. As a result, the airfoil lift coefficient drops, and its drag coefficient rises at the same time, leading to poor performance. The validation of the numerical results through wind tunnel experiments provided confidence in the findings of the study.

Research paper thumbnail of The effect of biogas and dimethyl ether on the thermal characteristics of a dual‐fuel diesel engine: A numerical study

Biofuels, Bioproducts and Biorefining, Dec 15, 2023

Research paper thumbnail of Numerical Simulation of the Aerodynamic Characteristics of NACA0012 Airfoil Based on Operational Parameters

Maǧallaẗ al-baṣraẗ li-l-ʻulūm al-handasiyyaẗ, Jul 2, 2023

This study investigated the performance of symmetric airfoils of type NACA0012 numerically under ... more This study investigated the performance of symmetric airfoils of type NACA0012 numerically under different operating conditions. It has been assumed that the study involves steady state, non-compressive, and turbulent flows. The operating fluid was air. The effect of Reynolds number and angle of attack on lift and drag coefficients, pressure distribution, and velocity distribution was investigated. ANSYS FLUENT has been used to solve the numerical model by using continuity equations, Navier-Stokes equations, and the appropriate K-ω SST perturbation model. This study shows a clear difference between the pressure coefficient of the lower and upper surfaces of the airfoil at high Reynolds numbers, indicating higher lift at high Reynolds numbers. As the maximum stall angle of the airfoil NACA0012 is 14° after which it decreases significantly, a direct relationship was observed between lift and drag coefficients and angle of attack.

Research paper thumbnail of Comparison Between Numerical and an Experimental Results of Pressure Drop in a Perforated Horizontal Wellbore with a 90° Perforations Phasing

Maǧallaẗ al-baṣraẗ li-l-ʻulūm al-handasiyyaẗ, Jul 2, 2023

This paper presented experimental and numerical studies to investigate pressure drop in perforati... more This paper presented experimental and numerical studies to investigate pressure drop in perforation horizontal wellbore with a 90° phasing and 20 spm perforation density. The experimental apparatus has been constructed to calculate the static pressure drop and calculate the exit velocity in the horizontal pipe after mixing the axial flow with the radial flow through the perforations in the wellbore. The specifications of the wellbore used were the inner diameter is 44 mm, length is 2 m, and perforation diameter is 4 mm. For this objective, a simulation model was created in the wellbore using the ANSYS Fluent simulation software by using the standard k-ε model and applied to the (CFD) by changing the axial flow from (40-160) lit/min and constant inflow through perforations from range (0-80) lit/min. According to the study's findings, the increase in the radial flow through the perforations increases the total flow rate ratio and the total pressure drop and vice versa. In addition, an increase in the axial flow mixed with radial flow increases the total pressure drop, friction factor, and a decrease in productivity index. Furthermore, the percentage error of the total pressure drop between the numerical and experimental results in test 4 is about 3.83 %. It was found that the numerical and experimental results represented a good agreement about the study of the flow-through perforations at 90° angle in terms of pressure drop and productivity index, etc.

Research paper thumbnail of Numerical analysis of tee-junction with equivalent diameters for two variable angles

AIP Conference Proceedings

Research paper thumbnail of Investigation of flow regimes, pressure drop, void fraction, film thickness, friction factor and production of two-phase flow in a perforated horizontal wellbore

Geoenergy Science and Engineering

Research paper thumbnail of Mechanical engineering advantages of a dual fuel diesel engine powered by diesel and aqueous ammonia blends

Research paper thumbnail of Effect of perforation density distribution on production of perforated horizontal wellbore

Petroleum exploration and development, Apr 1, 2024

Research paper thumbnail of The Effect of Distribution of the Perforation Density on the Production Through Perforated Horizontal Wellbore

With depletion of oil reserve around the world, focus has been shifted towards deeper exploration... more With depletion of oil reserve around the world, focus has been shifted towards deeper exploration in the field that is difficult to reach. Oil production rate is influenced by perforation density distribution's along horizontal wells, specifically in reservoirs with high permeability and low-pressure drawdown. This study investigated the behaviours of the total pressure drop, mixture’s superficial velocity, void fraction and liquid film thickness that occurs with various flow patterns (i.e., bubble, slug, stratified and stratified wave flows). Two perforation density conditions are studied, namely perforation density increase at outlet and perforation density increase at inlet. The friction factor was fulfilled through the perforated and unperforated horizontal wellbore. Production is greater with a perforated horizontal wellbore than with a smooth (unperforated) horizontal wellbore. The total pressure drop, mixture superficial velocity and void fraction increases with the air s...

Research paper thumbnail of Improving production and prediction of the flow regimes, pressure drop, and void fraction in the perforated horizontal wellbore

Nuclear Engineering and Design

Research paper thumbnail of Experimental investigation of holdup fraction using the trapezoidal rule, Simpson's rule and the average offset formula in perforated horizontal wellbore

Research paper thumbnail of Experimental and numerical study of slug flow in horizontal perforated wellbore

Journal of Petroleum Science and Engineering

Research paper thumbnail of Numerical Investigation of the Turbulent Flow Parameters Distribution in a Partly Perforated Horizontal Wellbore

European Scientific Journal, ESJ, Nov 30, 2013

The overall pressure drop in a horizontal wellbore used in the recovery of oil and gas industry w... more The overall pressure drop in a horizontal wellbore used in the recovery of oil and gas industry was classified into four separate effects due to wall friction, increase in momentum, perforation roughness and type of fluid mixing. A perforated section is followed by a plain section for many horizontal wells. The additional pressure drop due to combined effect of perforation roughness and the type of fluid mixing was analyzed through numerical CFD and the results were compared with the experimental results of other researchers. The computations were based on the finite volume method with the SIMPLE algorithm standard

Research paper thumbnail of Numerical Analysis by Computational Fluid Dynamic Simulation of Fluid Flow in A T- Junction

Proceedings of 2nd International Multi-Disciplinary Conference Theme: Integrated Sciences and Technologies, IMDC-IST 2021, 7-9 September 2021, Sakarya, Turkey, 2022

The flow in a T-junction is very important in industrial and equipment. Prediction of the loss co... more The flow in a T-junction is very important in industrial and equipment. Prediction of the loss coefficient and velocity profile of fluid with the turbulent incompressible flow in T-junction pipe for non-symmetrical dividing and non-symmetrical combining helps to understand this type of fitting. The angle of the tee is 90⁰, sharp edge, the area ratio is equal to one and Three-dimensional the specification of geometry at steady state. The model of turbulent uses the stander k-and solving the Navies-Stocks equation by finite volume method in the SIMPLE algorithm in ANSYS FLUENT R1 2020. Comparison of the numerical results with previous work to study the effect of the flow rate ratio with different Reynolds numbers in the range (3000-30000). The results show the loss coefficient is independent of Re numbers. The non-symmetrical dividing the maximum flow move in the straight pipe when the change flow rate ratio to (0.8) forced the fluid to move in the branch and formation high vortex and recirculation. The nonsymmetrical combining the high velocity in outlet branch with small eddies especially increased at a flow rate ratio (0.8).

Research paper thumbnail of Computational Fluid Dynamic Analysis of the Flow though T-junction and Venturi Meter

Proceedings of 2nd International Multi-Disciplinary Conference Theme: Integrated Sciences and Technologies, IMDC-IST 2021, 7-9 September 2021, Sakarya, Turkey, 2022

This study investigates the influence of turbulent parameters on the characteristic centreline of... more This study investigates the influence of turbulent parameters on the characteristic centreline of a fluid flow through a T-junction connected to a Vinturi tube through a pipe. Continuity equation, Momentum equation, and Energy equation of water are modelled and solved by using the ANSYS FLUENT 2020R1 Software free Demo. While the turbulent model with standard (k-ε) type is used to compute the turbulent parameters such as turbulent kinetic energy and turbulent dissipation rate for a pipe inner diameter of (D =25 mm) with a length from the T-junction centre line and at the outlet of the Venturi meter is (350 mm). The Reynolds number variation ranged from (1x10 4 to 3x10 4) at the step of (5000). The water flowing is considered in an x-direction flow to show the effects of the above parameters. The model is obtained on the velocity distribution, pressure drop distribution, turbulent kinetic energy, and turbulent dissipation rate. The results showed a discrepancy in the values of the effect of the T-junction on the Venturi meter concerning the velocity distribution and pressure drop, while they showed similar behaviour for the turbulence parameters.

Research paper thumbnail of Experimental and Numerical Study of Flow Through Horizontal Wellbore of the 180 Perforation Phasing

Basrah journal for engineering science

This paper demonstrates experimental and numerical studies to investigate in perforation pipes wi... more This paper demonstrates experimental and numerical studies to investigate in perforation pipes with a phasing 180° and perforation densities 9 spm in a horizontal wellbore. The experimental study was conducted to investigate the phasing angle 180° in a horizontal wellbore. The wellbore has an inner diameter of 44 mm, as well as the length of the pipe is 2 m. For this purpose, a simulation model was created in the wellbore using the ANSYS FLUENT simulation software by using the standard k-𝜖 model and applied to the (CFD) with changing the axial flow from (40 - 160) lit/min and constant inflow through perforations from range (20 - 80) lit/min. Concerning the findings of this study, it was noticed that the total pressure drop (friction, acceleration, mixing) goes high as the total flow rate ratio increases. As well as, an increase of the inflow concerning the main flow rate ratio leads to an increase in the total pressure drop and a decrease in the productivity index. Furthermore, the ...

Research paper thumbnail of A Comparison of the Density Perforations for the horizontal Wellbore

In this paper study the flow behavior in horizontal wellbore with 60 and 150 perforations of perf... more In this paper study the flow behavior in horizontal wellbore with 60 and 150 perforations of perforation densities equivalent to 6 and 12 SPF respectively has been studied. The pressure drops in a perforated pipe that includes the influence of inflow through the pipe walls compares for two pipes that difference in perforation density. 3D numerical simulations for the pipe with two numbers of perforations were investigated by using ANSYS CFX modeling tool with Reynolds number ranging from 28,773 to 90,153 and influx flow rate ranging from 0 to 899 lit/hr to observe the flow through perforated pipe, measure pressure drops. The effect of density perforations on the flow through perforated pipe was conducted. CFD simulations yielded results that are reasonably close to experiments data. Key-Words: perforation density, pressure, numerical, CFX.

Research paper thumbnail of Energy-Exergy Analysis of Multistage Refrigeration System and Flash Gas Intercooler Working with Ozone-Friendly Alternative Refrigerants to R134a

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2019

Research paper thumbnail of Numerical Analysis by Computational Fluid Dynamic Simulation of Fluid Flow in A T- Junction

Proceedings of 2nd International Multi-Disciplinary Conference Theme: Integrated Sciences and Technologies, IMDC-IST 2021, 7-9 September 2021, Sakarya, Turkey, 2022

The flow in a T-junction is very important in industrial and equipment. Prediction of the loss co... more The flow in a T-junction is very important in industrial and equipment. Prediction of the loss coefficient and velocity profile of fluid with the turbulent incompressible flow in T-junction pipe for non-symmetrical dividing and non-symmetrical combining helps to understand this type of fitting. The angle of the tee is 90⁰, sharp edge, the area ratio is equal to one and Three-dimensional the specification of geometry at steady state. The model of turbulent uses the stander k-and solving the Navies-Stocks equation by finite volume method in the SIMPLE algorithm in ANSYS FLUENT R1 2020. Comparison of the numerical results with previous work to study the effect of the flow rate ratio with different Reynolds numbers in the range (3000-30000). The results show the loss coefficient is independent of Re numbers. The non-symmetrical dividing the maximum flow move in the straight pipe when the change flow rate ratio to (0.8) forced the fluid to move in the branch and formation high vortex and recirculation. The nonsymmetrical combining the high velocity in outlet branch with small eddies especially increased at a flow rate ratio (0.8).

Research paper thumbnail of Investigation of the Static Pressure Drop and Production that Occurs due to Flow Patterns in a Perforated Horizontal Wellbore

WSEAS transactions on fluid mechanics, May 28, 2024

This study examined the intricate interaction between flow patterns and production within a perfo... more This study examined the intricate interaction between flow patterns and production within a perforated horizontal wellbore. The study precisely assessed the behavior of static pressure drop by utilizing an array of flow regimes encompassing bubble, dispersed bubble, transitional bubble/slug, slug, stratified, transitional slug/stratified wave, and stratified wave. Remarkably, an upward trend in static pressure drop was observed with increasing water phase presence, while the converse was true for the air phase. Besides, the air phase superficial velocity exhibited a direct correlation with the magnitude of pressure drop fluctuations. The liquid production demonstrated a peak during bubble and slug flow regimes, followed by a descent during the transition to stratified and stratified wave flow. This decline can be attributed to mixing pressure drops localized during the perforations. Furthermore, an upward trend in average liquid production was observed with increasing mixture superficial velocity, primarily due to the dominant presence of the water phase. Additionally, the percentage of liquid production was positively associated with the water's superficial velocity when the air's superficial velocity was held constant. While the experimental and numerical results were in agreement for slugs and structured flows, there were discrepancies in the behavior of static pressure for bubbles, small bubbles, and structured waves.

Research paper thumbnail of Numerical and experimental study of the impact on aerodynamic characteristics of the NACA0012 airfoil

Open Engineering, 2024

Using computational models and low-speed wind tunnel tests, the aerodynamic characteristics of th... more Using computational models and low-speed wind tunnel tests, the aerodynamic characteristics of the NACA 0012 airfoil with low Re numbers of (8 × 10 4 , 2 × 10 5 , 3 × 10 5 , and 4 × 10 5) and angle of attack (AOA) ranging from 0°t o 18°by two steps are examined. Using the same 3-D wind tunnel dimensions, numerical simulations were run. The software program ANSYS FLUENT was used to solve the mathematical model using the continuity equation, the Navier-Stokes equations, and the k-ω shearstress transport turbulence model. Findings demonstrate that at all AOAs, there is a direct relationship between Reynolds numbers (Re), lift and drag coefficients, kinetic energy, and stall angle. The lift coefficient rises linearly as the AOA increases, peaking at 14°, the stall angle at higher Reynolds number. The lift coefficient was found to decline when the AOA was increased further, reaching its minimal value at an AOA of 18°. With a greater AOA, the airfoil's drag coefficient rises, creating turbulent flow. The eddies produced by the turbulence cause the flow to start separating from the airfoil surface as turbulence increases. As a result, the airfoil lift coefficient drops, and its drag coefficient rises at the same time, leading to poor performance. The validation of the numerical results through wind tunnel experiments provided confidence in the findings of the study.

Research paper thumbnail of The effect of biogas and dimethyl ether on the thermal characteristics of a dual‐fuel diesel engine: A numerical study

Biofuels, Bioproducts and Biorefining, Dec 15, 2023

Research paper thumbnail of Numerical Simulation of the Aerodynamic Characteristics of NACA0012 Airfoil Based on Operational Parameters

Maǧallaẗ al-baṣraẗ li-l-ʻulūm al-handasiyyaẗ, Jul 2, 2023

This study investigated the performance of symmetric airfoils of type NACA0012 numerically under ... more This study investigated the performance of symmetric airfoils of type NACA0012 numerically under different operating conditions. It has been assumed that the study involves steady state, non-compressive, and turbulent flows. The operating fluid was air. The effect of Reynolds number and angle of attack on lift and drag coefficients, pressure distribution, and velocity distribution was investigated. ANSYS FLUENT has been used to solve the numerical model by using continuity equations, Navier-Stokes equations, and the appropriate K-ω SST perturbation model. This study shows a clear difference between the pressure coefficient of the lower and upper surfaces of the airfoil at high Reynolds numbers, indicating higher lift at high Reynolds numbers. As the maximum stall angle of the airfoil NACA0012 is 14° after which it decreases significantly, a direct relationship was observed between lift and drag coefficients and angle of attack.

Research paper thumbnail of Comparison Between Numerical and an Experimental Results of Pressure Drop in a Perforated Horizontal Wellbore with a 90° Perforations Phasing

Maǧallaẗ al-baṣraẗ li-l-ʻulūm al-handasiyyaẗ, Jul 2, 2023

This paper presented experimental and numerical studies to investigate pressure drop in perforati... more This paper presented experimental and numerical studies to investigate pressure drop in perforation horizontal wellbore with a 90° phasing and 20 spm perforation density. The experimental apparatus has been constructed to calculate the static pressure drop and calculate the exit velocity in the horizontal pipe after mixing the axial flow with the radial flow through the perforations in the wellbore. The specifications of the wellbore used were the inner diameter is 44 mm, length is 2 m, and perforation diameter is 4 mm. For this objective, a simulation model was created in the wellbore using the ANSYS Fluent simulation software by using the standard k-ε model and applied to the (CFD) by changing the axial flow from (40-160) lit/min and constant inflow through perforations from range (0-80) lit/min. According to the study's findings, the increase in the radial flow through the perforations increases the total flow rate ratio and the total pressure drop and vice versa. In addition, an increase in the axial flow mixed with radial flow increases the total pressure drop, friction factor, and a decrease in productivity index. Furthermore, the percentage error of the total pressure drop between the numerical and experimental results in test 4 is about 3.83 %. It was found that the numerical and experimental results represented a good agreement about the study of the flow-through perforations at 90° angle in terms of pressure drop and productivity index, etc.

Research paper thumbnail of Numerical analysis of tee-junction with equivalent diameters for two variable angles

AIP Conference Proceedings

Research paper thumbnail of Investigation of flow regimes, pressure drop, void fraction, film thickness, friction factor and production of two-phase flow in a perforated horizontal wellbore

Geoenergy Science and Engineering

Research paper thumbnail of Mechanical engineering advantages of a dual fuel diesel engine powered by diesel and aqueous ammonia blends

Research paper thumbnail of Effect of perforation density distribution on production of perforated horizontal wellbore

Petroleum exploration and development, Apr 1, 2024

Research paper thumbnail of The Effect of Distribution of the Perforation Density on the Production Through Perforated Horizontal Wellbore

With depletion of oil reserve around the world, focus has been shifted towards deeper exploration... more With depletion of oil reserve around the world, focus has been shifted towards deeper exploration in the field that is difficult to reach. Oil production rate is influenced by perforation density distribution's along horizontal wells, specifically in reservoirs with high permeability and low-pressure drawdown. This study investigated the behaviours of the total pressure drop, mixture’s superficial velocity, void fraction and liquid film thickness that occurs with various flow patterns (i.e., bubble, slug, stratified and stratified wave flows). Two perforation density conditions are studied, namely perforation density increase at outlet and perforation density increase at inlet. The friction factor was fulfilled through the perforated and unperforated horizontal wellbore. Production is greater with a perforated horizontal wellbore than with a smooth (unperforated) horizontal wellbore. The total pressure drop, mixture superficial velocity and void fraction increases with the air s...

Research paper thumbnail of Improving production and prediction of the flow regimes, pressure drop, and void fraction in the perforated horizontal wellbore

Nuclear Engineering and Design

Research paper thumbnail of Experimental investigation of holdup fraction using the trapezoidal rule, Simpson's rule and the average offset formula in perforated horizontal wellbore

Research paper thumbnail of Experimental and numerical study of slug flow in horizontal perforated wellbore

Journal of Petroleum Science and Engineering

Research paper thumbnail of Numerical Investigation of the Turbulent Flow Parameters Distribution in a Partly Perforated Horizontal Wellbore

European Scientific Journal, ESJ, Nov 30, 2013

The overall pressure drop in a horizontal wellbore used in the recovery of oil and gas industry w... more The overall pressure drop in a horizontal wellbore used in the recovery of oil and gas industry was classified into four separate effects due to wall friction, increase in momentum, perforation roughness and type of fluid mixing. A perforated section is followed by a plain section for many horizontal wells. The additional pressure drop due to combined effect of perforation roughness and the type of fluid mixing was analyzed through numerical CFD and the results were compared with the experimental results of other researchers. The computations were based on the finite volume method with the SIMPLE algorithm standard

Research paper thumbnail of Numerical Analysis by Computational Fluid Dynamic Simulation of Fluid Flow in A T- Junction

Proceedings of 2nd International Multi-Disciplinary Conference Theme: Integrated Sciences and Technologies, IMDC-IST 2021, 7-9 September 2021, Sakarya, Turkey, 2022

The flow in a T-junction is very important in industrial and equipment. Prediction of the loss co... more The flow in a T-junction is very important in industrial and equipment. Prediction of the loss coefficient and velocity profile of fluid with the turbulent incompressible flow in T-junction pipe for non-symmetrical dividing and non-symmetrical combining helps to understand this type of fitting. The angle of the tee is 90⁰, sharp edge, the area ratio is equal to one and Three-dimensional the specification of geometry at steady state. The model of turbulent uses the stander k-and solving the Navies-Stocks equation by finite volume method in the SIMPLE algorithm in ANSYS FLUENT R1 2020. Comparison of the numerical results with previous work to study the effect of the flow rate ratio with different Reynolds numbers in the range (3000-30000). The results show the loss coefficient is independent of Re numbers. The non-symmetrical dividing the maximum flow move in the straight pipe when the change flow rate ratio to (0.8) forced the fluid to move in the branch and formation high vortex and recirculation. The nonsymmetrical combining the high velocity in outlet branch with small eddies especially increased at a flow rate ratio (0.8).

Research paper thumbnail of Computational Fluid Dynamic Analysis of the Flow though T-junction and Venturi Meter

Proceedings of 2nd International Multi-Disciplinary Conference Theme: Integrated Sciences and Technologies, IMDC-IST 2021, 7-9 September 2021, Sakarya, Turkey, 2022

This study investigates the influence of turbulent parameters on the characteristic centreline of... more This study investigates the influence of turbulent parameters on the characteristic centreline of a fluid flow through a T-junction connected to a Vinturi tube through a pipe. Continuity equation, Momentum equation, and Energy equation of water are modelled and solved by using the ANSYS FLUENT 2020R1 Software free Demo. While the turbulent model with standard (k-ε) type is used to compute the turbulent parameters such as turbulent kinetic energy and turbulent dissipation rate for a pipe inner diameter of (D =25 mm) with a length from the T-junction centre line and at the outlet of the Venturi meter is (350 mm). The Reynolds number variation ranged from (1x10 4 to 3x10 4) at the step of (5000). The water flowing is considered in an x-direction flow to show the effects of the above parameters. The model is obtained on the velocity distribution, pressure drop distribution, turbulent kinetic energy, and turbulent dissipation rate. The results showed a discrepancy in the values of the effect of the T-junction on the Venturi meter concerning the velocity distribution and pressure drop, while they showed similar behaviour for the turbulence parameters.

Research paper thumbnail of Experimental and Numerical Study of Flow Through Horizontal Wellbore of the 180 Perforation Phasing

Basrah journal for engineering science

This paper demonstrates experimental and numerical studies to investigate in perforation pipes wi... more This paper demonstrates experimental and numerical studies to investigate in perforation pipes with a phasing 180° and perforation densities 9 spm in a horizontal wellbore. The experimental study was conducted to investigate the phasing angle 180° in a horizontal wellbore. The wellbore has an inner diameter of 44 mm, as well as the length of the pipe is 2 m. For this purpose, a simulation model was created in the wellbore using the ANSYS FLUENT simulation software by using the standard k-𝜖 model and applied to the (CFD) with changing the axial flow from (40 - 160) lit/min and constant inflow through perforations from range (20 - 80) lit/min. Concerning the findings of this study, it was noticed that the total pressure drop (friction, acceleration, mixing) goes high as the total flow rate ratio increases. As well as, an increase of the inflow concerning the main flow rate ratio leads to an increase in the total pressure drop and a decrease in the productivity index. Furthermore, the ...

Research paper thumbnail of A Comparison of the Density Perforations for the horizontal Wellbore

In this paper study the flow behavior in horizontal wellbore with 60 and 150 perforations of perf... more In this paper study the flow behavior in horizontal wellbore with 60 and 150 perforations of perforation densities equivalent to 6 and 12 SPF respectively has been studied. The pressure drops in a perforated pipe that includes the influence of inflow through the pipe walls compares for two pipes that difference in perforation density. 3D numerical simulations for the pipe with two numbers of perforations were investigated by using ANSYS CFX modeling tool with Reynolds number ranging from 28,773 to 90,153 and influx flow rate ranging from 0 to 899 lit/hr to observe the flow through perforated pipe, measure pressure drops. The effect of density perforations on the flow through perforated pipe was conducted. CFD simulations yielded results that are reasonably close to experiments data. Key-Words: perforation density, pressure, numerical, CFX.

Research paper thumbnail of Energy-Exergy Analysis of Multistage Refrigeration System and Flash Gas Intercooler Working with Ozone-Friendly Alternative Refrigerants to R134a

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2019

Research paper thumbnail of Numerical Analysis by Computational Fluid Dynamic Simulation of Fluid Flow in A T- Junction

Proceedings of 2nd International Multi-Disciplinary Conference Theme: Integrated Sciences and Technologies, IMDC-IST 2021, 7-9 September 2021, Sakarya, Turkey, 2022

The flow in a T-junction is very important in industrial and equipment. Prediction of the loss co... more The flow in a T-junction is very important in industrial and equipment. Prediction of the loss coefficient and velocity profile of fluid with the turbulent incompressible flow in T-junction pipe for non-symmetrical dividing and non-symmetrical combining helps to understand this type of fitting. The angle of the tee is 90⁰, sharp edge, the area ratio is equal to one and Three-dimensional the specification of geometry at steady state. The model of turbulent uses the stander k-and solving the Navies-Stocks equation by finite volume method in the SIMPLE algorithm in ANSYS FLUENT R1 2020. Comparison of the numerical results with previous work to study the effect of the flow rate ratio with different Reynolds numbers in the range (3000-30000). The results show the loss coefficient is independent of Re numbers. The non-symmetrical dividing the maximum flow move in the straight pipe when the change flow rate ratio to (0.8) forced the fluid to move in the branch and formation high vortex and recirculation. The nonsymmetrical combining the high velocity in outlet branch with small eddies especially increased at a flow rate ratio (0.8).