Emel Selamet | Ohio State University (original) (raw)

Papers by Emel Selamet

Research paper thumbnail of Simulation of Natural Convection in a Square Cavity with Partially Heated and Cooled Vertical Walls

Proceeding of 5th Thermal and Fluids Engineering Conference (TFEC)

Natural convection driven by temperature differences between partially heated and cooled vertical... more Natural convection driven by temperature differences between partially heated and cooled vertical walls in a square cavity is studied numerically. Steady or unsteady cellular flow structures and temperature patterns are illustrated along with the evolution of heat transfer rates in terms of Nusselt number. The cavity is filled with fluids of various Prandtl number, including .024 (liquid metal), .71 (air), 6 (water), and 450 (silicon oil). The effect of Prandtl and Rayleigh numbers on the flow regime and heat transfer is established along with two different thermal boundary conditions.

Research paper thumbnail of Simulation of Natural Convection in a Cavity: Cooling with Top versus Bottom Partition

Journal of Energy and Power Engineering

Natural convection in a square cavity is studied numerically with vertical hot walls and a cold p... more Natural convection in a square cavity is studied numerically with vertical hot walls and a cold partition located at the bottom or top walls. The effect of orientation of partition on isotherms, flow patterns, and heat transfer is analyzed for different fluids and Rayleigh numbers. The placement of partition is found to considerably influence the isotherms, flow patterns, and heat transfer. Heat transfer rate is observed always to increase when the partition is moved from bottom to top wall.

Research paper thumbnail of Simulation of the Rayleigh-Benard Convection in a Finned Cavity Filled with Liquid Gallium

Proceeding of 3rd Thermal and Fluids Engineering Conference (TFEC)

Research paper thumbnail of Three-dimensional computational fluid dynamics prediction of mild surge in a turbocharger compression system vs. experiments

Journal of the Acoustical Society of America, 2016

Research paper thumbnail of Simulation of Natural Convection in a Cavity: Cooling with Top versus Bottom Partition

Journal of Energy and Power Engineering, Sep 28, 2019

Natural convection in a square cavity is studied numerically with vertical hot walls and a cold p... more Natural convection in a square cavity is studied numerically with vertical hot walls and a cold partition located at the bottom or top walls. The effect of orientation of partition on isotherms, flow patterns, and heat transfer is analyzed for different fluids and Rayleigh numbers. The placement of partition is found to considerably influence the isotherms, flow patterns, and heat transfer. Heat transfer rate is observed always to increase when the partition is moved from bottom to top wall.

Research paper thumbnail of Simulation of Natural Convection in a Cavity: Cooling with Top versus Bottom Partition

Journal of Energy and Power Engineering, Sep 28, 2019

Natural convection in a square cavity is studied numerically with vertical hot walls and a cold p... more Natural convection in a square cavity is studied numerically with vertical hot walls and a cold partition located at the bottom or top walls. The effect of orientation of partition on isotherms, flow patterns, and heat transfer is analyzed for different fluids and Rayleigh numbers. The placement of partition is found to considerably influence the isotherms, flow patterns, and heat transfer. Heat transfer rate is observed always to increase when the partition is moved from bottom to top wall.

Research paper thumbnail of Predicting chemical species in spark-ignition engines

Energy, 2004

The unsteady motion of chemical species in the intake and exhaust ducts of spark-ignition interna... more The unsteady motion of chemical species in the intake and exhaust ducts of spark-ignition internal combustion (I.C.) engines is studied numerically by employing a finite-difference-based engine simulation code. The time-dependent mass fractions of six dominant products (CO 2 , H 2 O, CO, H 2 , O 2 , N 2 ) combined with five additional minor species (H, NO, O, OH, N) are computed in the combustion chamber and tracked throughout the breathing system for wide-open-throttle as well as part-load operating conditions. The property calculations employ the NASA database to determine the composition. The effect of the number of product species on the engine performance and dynamic quantities, including pressure and temperature in the breathing system, is also investigated. #

Research paper thumbnail of Simulation of Natural Convection in a Square Cavity with Partially Heated and Cooled Vertical Walls

Proceeding of 5th Thermal and Fluids Engineering Conference (TFEC)

Natural convection driven by temperature differences between partially heated and cooled vertical... more Natural convection driven by temperature differences between partially heated and cooled vertical walls in a square cavity is studied numerically. Steady or unsteady cellular flow structures and temperature patterns are illustrated along with the evolution of heat transfer rates in terms of Nusselt number. The cavity is filled with fluids of various Prandtl number, including .024 (liquid metal), .71 (air), 6 (water), and 450 (silicon oil). The effect of Prandtl and Rayleigh numbers on the flow regime and heat transfer is established along with two different thermal boundary conditions.

Research paper thumbnail of Simulation of Natural Convection in a Cavity: Cooling with Top versus Bottom Partition

Journal of Energy and Power Engineering

Natural convection in a square cavity is studied numerically with vertical hot walls and a cold p... more Natural convection in a square cavity is studied numerically with vertical hot walls and a cold partition located at the bottom or top walls. The effect of orientation of partition on isotherms, flow patterns, and heat transfer is analyzed for different fluids and Rayleigh numbers. The placement of partition is found to considerably influence the isotherms, flow patterns, and heat transfer. Heat transfer rate is observed always to increase when the partition is moved from bottom to top wall.

Research paper thumbnail of Simulation of the Rayleigh-Benard Convection in a Finned Cavity Filled with Liquid Gallium

Proceeding of 3rd Thermal and Fluids Engineering Conference (TFEC)

Research paper thumbnail of Three-dimensional computational fluid dynamics prediction of mild surge in a turbocharger compression system vs. experiments

Journal of the Acoustical Society of America, 2016

Research paper thumbnail of Simulation of Natural Convection in a Cavity: Cooling with Top versus Bottom Partition

Journal of Energy and Power Engineering, Sep 28, 2019

Natural convection in a square cavity is studied numerically with vertical hot walls and a cold p... more Natural convection in a square cavity is studied numerically with vertical hot walls and a cold partition located at the bottom or top walls. The effect of orientation of partition on isotherms, flow patterns, and heat transfer is analyzed for different fluids and Rayleigh numbers. The placement of partition is found to considerably influence the isotherms, flow patterns, and heat transfer. Heat transfer rate is observed always to increase when the partition is moved from bottom to top wall.

Research paper thumbnail of Simulation of Natural Convection in a Cavity: Cooling with Top versus Bottom Partition

Journal of Energy and Power Engineering, Sep 28, 2019

Natural convection in a square cavity is studied numerically with vertical hot walls and a cold p... more Natural convection in a square cavity is studied numerically with vertical hot walls and a cold partition located at the bottom or top walls. The effect of orientation of partition on isotherms, flow patterns, and heat transfer is analyzed for different fluids and Rayleigh numbers. The placement of partition is found to considerably influence the isotherms, flow patterns, and heat transfer. Heat transfer rate is observed always to increase when the partition is moved from bottom to top wall.

Research paper thumbnail of Predicting chemical species in spark-ignition engines

Energy, 2004

The unsteady motion of chemical species in the intake and exhaust ducts of spark-ignition interna... more The unsteady motion of chemical species in the intake and exhaust ducts of spark-ignition internal combustion (I.C.) engines is studied numerically by employing a finite-difference-based engine simulation code. The time-dependent mass fractions of six dominant products (CO 2 , H 2 O, CO, H 2 , O 2 , N 2 ) combined with five additional minor species (H, NO, O, OH, N) are computed in the combustion chamber and tracked throughout the breathing system for wide-open-throttle as well as part-load operating conditions. The property calculations employ the NASA database to determine the composition. The effect of the number of product species on the engine performance and dynamic quantities, including pressure and temperature in the breathing system, is also investigated. #