TITLE:
Parameters Effect on Heat Transfer Augmentation in a Cavity with Moving Horizontal Walls
AUTHORS:
Doli Rani Pal, Goutam Saha, Kajal Chandra Saha
KEYWORDS:
Mixed Convection, Nusselt Number, Lid-Driven Cavity, Heat Transfer, Shear Force
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.6 No.9,
September
25,
2018
ABSTRACT: Mixed convection flow is one of the essential
criteria of fluid flow and heat transfer. And its application has been
increased due to modernization of society. So, to compete with the global world
an analysis has been investigated numerically. In this study we have considered
2D double lid driven cavity with two-sided adiabatic walls. This problem is
illustrated mathematically by a collection of governing equations and the
developed model has been solved numerically by using Finite Difference Method
(FDM). The goal of the present study is to analyze numerically the thermal
behaviour and parameters effect on heat transfer inside the 2D chamber. Also
this analysis has been observed for the case where the upper wall is moving at
positive direction and lower wall is moving at negative direction with constant
speed. Furthermore, we have tried to analyze the velocity and temperature
profiles for a vast range of dimensionless parameters namely Reynolds number (Re), Richardson number (Ri)and Prandtl
number(Pr)and presented
graphically. Moreover, it is found that these flow parameters have significant
effects in controlling the flow behavior inside the cavity. A comparison has
been done to validate our code and found a good agreement. Finally, average
Nusselt number (Nu)has been studied for the effects of these parameters and presented in
tabular form.