Free Convection of Water near its Density Maximum in a Heat Generating Porous Cavity with Sinusoidal Heating

3rd International Conference on Materials and Manufacturing Engineering 2018

Janagi, K.^1 ; Sivasankaran, S.^2 ; Bhuvaneswari, M.^3 ; Eswaramurthi, M.^3

Department of Mathematics, Sri Shanmugha College of Engineering and Technology, Pullipalayam, Sankari, Tamil Nadu, India^1

Department of Mathematics, King Abdulaziz University, Jeddah, Saudi Arabia^2

Department of Mathematics, Velalar College of Engineering and Technology, Tamil Nadu, Erode, India^3

关键词: Density inversion;    Free convective flow;    Governing equations;    Heat generation parameters;    Internal heat generation;    Numerical investigations;    Porous medium;    Sinusoidal temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/390/1/012095/pdf
DOI  :  10.1088/1757-899X/390/1/012095

来源: IOP

【 摘 要 】

The aim of the present numerical investigation is to understand the unsteady free convective flow and heat transfer of cold water near its density maximum temperature in a two-dimensional square porous cavity with internal heat generation. The present study uses the Brinkmann-Forchheimer extended Darcy model for porous medium to study the effects of density inversion parameter, heat generation parameter, Darcy number and porosity. The finite volume method is used to solve the governing equations. The nonlinear behavior of local heat transfer is observed due to sinusoidal heating. The heat transfer enhances for heat absorption case than that of heat generation case in the presence of density maximum.