Logo

CFD Simulations of Natural Convection Heat Transfer in Enclosures with Varying Aspect Ratios

Pendyala, Rajashekhar and Wong, Yean Sang and Ilyas, Suhaib Umer (2015) CFD Simulations of Natural Convection Heat Transfer in Enclosures with Varying Aspect Ratios. [Citation Index Journal]

[img] PDF
725Kb

Abstract

Buoyancy driven natural convection in enclosures has wide range of engineering applications in heat transfer processes. The study of fluid flow and heat transfer characteristics in enclosures has significant importance towards thermal management and optimal design of the systems. Limited studies are available on the numerical simulation of 3-dimensional enclosures with varying aspect ratios (AR). Heat transfer characteristics are investigated in 3D rectangular enclosures with hot and cold surface by computational fluid dynamics simulations at low (0.125) to high (150) aspect ratios (Height/Length). CFD simulations are performed with different fluids at a temperature range of 20 K ≤ ΔT ≤ 100 K and Prandtl number range of 0.01 ≤ Pr ≤ 4,500. The velocity and temperatures profiles in the enclosures are presented. Heat transfer coefficients are estimated for all cases. Correlations for Nusselt number (Nu) based on predicted findings have been developed to represent heat transfer characteristics.

Item Type:Citation Index Journal
Subjects:T Technology > T Technology (General)
T Technology > TP Chemical technology
Academic Subject One:Academic Department - Chemical Engineering - Separation Process
Departments / MOR / COE:Departments > Chemical Engineering
ID Code:11787
Deposited By: Dr Rajashekhar Pendyala
Deposited On:07 Oct 2016 01:42
Last Modified:07 Oct 2016 01:42

Repository Staff Only: item control page

Document Downloads

More statistics for this item...