Investigation of viscous dissipation on free convection in a vertical annular cylinder embedded with porous medium

International Conference on Advances in Materials and Manufacturing Applications 2016

Ameerahamad, N.^1 ; Athani, Abdulgaphur^2

Mathematics Department, Faculty of Science, University of Tabuk, P.O.BOX. 741, 71491, Saudi Arabia^1

Anjuman Institute of Technology and Management, Bhatkal Karnataka

581320, India^2

关键词: Annular cylinders;    Horizontal surfaces;    Inner surfaces;    Isothermal temperature;    Porous medium;    Rayleigh number;    Supplying heat;    Viscous dissipation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/149/1/012218/pdf
DOI  :  10.1088/1757-899X/149/1/012218

来源: IOP

【 摘 要 】

In this paper, investigation of viscous dissipation on heat transfer by supplying heat at upper portion of the vertical annular cylinder is carried out. The governing partial differential equations are non-dimensionalised and solved using finite element method. The inner surface of the cylinder is maintained at isothermal temperature and the outer surface at ambient temperature. The top, bottom and horizontal surfaces of the vertical annular cylinder are adiabatic. The effect of viscous dissipation for different values of Rayleigh number is discussed.