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Saddam Mullick

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Papers by Saddam Mullick

Research paper thumbnail of Relative analysis between step and sinusoidal temperature distribution during natural convection inside a square porous enclosure actuated from below

Journal of thermal analysis and calorimetry, Feb 26, 2024

Research paper thumbnail of Entropy Generation inside a Tilted Air Saturated Porous Quadratic Enclosure

Lecture notes in mechanical engineering, 2023

Research paper thumbnail of Comparative study between step and sinusoidal temperature profiles during natural convection inside a square enclosure heated from bottom

Journal of Thermal Analysis and Calorimetry

Research paper thumbnail of Entropy Generation in a Viscoelastic Fluid Squeezed and Extruded Between Two Parallel Plates

Proceeding of Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019)

Research paper thumbnail of Transient heat transfer analysis during natural convection at high Ra number and small period of heating from bottom wall

Proceeding of Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019)

Research paper thumbnail of Influence of lower period of heating and high buoyancy inside fluid saturated porous enclosure on transient natural convection

Research paper thumbnail of Numerical Examination of Natural Convection and Entropy Formation Inside Air-Saturated Porous Enclosure to Create Thermally Active Region with Periodic Heating/Cooling

Research paper thumbnail of Influence of Central Angle on Buoyancy Driven Thermal Flow Behaviours inside a Circular Porous Enclosure Heating from below

Proceeding of Proceedings of the 26thNational and 4th International ISHMT-ASTFE Heat and Mass Transfer Conference December 17-20, 2021, IIT Madras, Chennai-600036, Tamil Nadu, India, 2022

Research paper thumbnail of Combined Motion Generation by Electro-Hydraulic Stewart Platform for Manufacturing Industries

In this paper, a detailed study of combined types of motion generation in real time experiment by... more In this paper, a detailed study of combined types of motion generation in real time experiment by a laboratory scale six-legged electro-hydraulic Stewart platform has been explored. The combined motions generated by this platform are circular, elliptical, parabolic, tilting and cylindrical motions which are produced with the help of combination of the three basic translation motions as well as rotational motions about three basic axis of the platform. A proportional and integral (PI) controller is applied in the leg level error and its output voltage is used to control the proportional valve of each actuator to acquire combined motion of the platform. The forward kinematic modeling has been developed here to obtain the platform motion for the corresponding piston response in the real time experiments.

Research paper thumbnail of Numerical Study of Natural Convection Inside a Square Cavity with Non-uniform Heating from Top

Journal of The Institution of Engineers (India): Series C, 2020

The prime objective of the present numerical study is to analyse buoyancy-driven thermal flow beh... more The prime objective of the present numerical study is to analyse buoyancy-driven thermal flow behaviour inside an enclosure with the application of nonlinear heating from top surface which is commonly essential in glass industries. A fluid-filled square cavity with sinusoidal heating from top surface, adiabatic bottom wall and constant temperature side walls is considered here. The thermal flow behaviour has been numerically observed with the help of relevant parameters like stream functions, isotherms and Nusselt number. For the present investigation, Rayleigh number (Ra), Prandtl number (Pr) and heating frequency of the wall (x) are varied from 10 3 to 10 6 , 0.7 to 7 and 0.5 to 2, respectively. It has been noticed from the investigation that flow dynamics drastically alter with Ra, x and Pr. However, the effect of Ra on heat transfer rate has been found to be significantly higher while compared with the influences by x and Pr. Keywords Free convection Á Buoyancy Á Rayleigh number Á Pr number Á Sinusoidal heating Greek letters a Thermal diffusivity (m 2 s-1) b Volumetric expansion coefficient (K-1) q Kinetic viscosity (m 2 s-1) t Density of fluid (kg m-3) h Dimensionless temperature x Heating frequency of the top wall

Research paper thumbnail of Relative analysis between step and sinusoidal temperature distribution during natural convection inside a square porous enclosure actuated from below

Journal of thermal analysis and calorimetry, Feb 26, 2024

Research paper thumbnail of Entropy Generation inside a Tilted Air Saturated Porous Quadratic Enclosure

Lecture notes in mechanical engineering, 2023

Research paper thumbnail of Comparative study between step and sinusoidal temperature profiles during natural convection inside a square enclosure heated from bottom

Journal of Thermal Analysis and Calorimetry

Research paper thumbnail of Entropy Generation in a Viscoelastic Fluid Squeezed and Extruded Between Two Parallel Plates

Proceeding of Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019)

Research paper thumbnail of Transient heat transfer analysis during natural convection at high Ra number and small period of heating from bottom wall

Proceeding of Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019)

Research paper thumbnail of Influence of lower period of heating and high buoyancy inside fluid saturated porous enclosure on transient natural convection

Research paper thumbnail of Numerical Examination of Natural Convection and Entropy Formation Inside Air-Saturated Porous Enclosure to Create Thermally Active Region with Periodic Heating/Cooling

Research paper thumbnail of Influence of Central Angle on Buoyancy Driven Thermal Flow Behaviours inside a Circular Porous Enclosure Heating from below

Proceeding of Proceedings of the 26thNational and 4th International ISHMT-ASTFE Heat and Mass Transfer Conference December 17-20, 2021, IIT Madras, Chennai-600036, Tamil Nadu, India, 2022

Research paper thumbnail of Combined Motion Generation by Electro-Hydraulic Stewart Platform for Manufacturing Industries

In this paper, a detailed study of combined types of motion generation in real time experiment by... more In this paper, a detailed study of combined types of motion generation in real time experiment by a laboratory scale six-legged electro-hydraulic Stewart platform has been explored. The combined motions generated by this platform are circular, elliptical, parabolic, tilting and cylindrical motions which are produced with the help of combination of the three basic translation motions as well as rotational motions about three basic axis of the platform. A proportional and integral (PI) controller is applied in the leg level error and its output voltage is used to control the proportional valve of each actuator to acquire combined motion of the platform. The forward kinematic modeling has been developed here to obtain the platform motion for the corresponding piston response in the real time experiments.

Research paper thumbnail of Numerical Study of Natural Convection Inside a Square Cavity with Non-uniform Heating from Top

Journal of The Institution of Engineers (India): Series C, 2020

The prime objective of the present numerical study is to analyse buoyancy-driven thermal flow beh... more The prime objective of the present numerical study is to analyse buoyancy-driven thermal flow behaviour inside an enclosure with the application of nonlinear heating from top surface which is commonly essential in glass industries. A fluid-filled square cavity with sinusoidal heating from top surface, adiabatic bottom wall and constant temperature side walls is considered here. The thermal flow behaviour has been numerically observed with the help of relevant parameters like stream functions, isotherms and Nusselt number. For the present investigation, Rayleigh number (Ra), Prandtl number (Pr) and heating frequency of the wall (x) are varied from 10 3 to 10 6 , 0.7 to 7 and 0.5 to 2, respectively. It has been noticed from the investigation that flow dynamics drastically alter with Ra, x and Pr. However, the effect of Ra on heat transfer rate has been found to be significantly higher while compared with the influences by x and Pr. Keywords Free convection Á Buoyancy Á Rayleigh number Á Pr number Á Sinusoidal heating Greek letters a Thermal diffusivity (m 2 s-1) b Volumetric expansion coefficient (K-1) q Kinetic viscosity (m 2 s-1) t Density of fluid (kg m-3) h Dimensionless temperature x Heating frequency of the top wall

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