Open Access

ARTICLE

A SYSTEMATIC APPROACH FOR OPTIMAL POSITIONING OF HEATED SIDE WALLS IN A SIDE VENTED OPEN CAVITY UNDER NATURAL CONVECTION AND SURFACE RADIATION

Ravi Shankar Prasad^a , S.N. Singh^b , Amit Kumar Gupta^c,*

a Heat Transfer Lab, Dept. of Mechanical Engg., Indian Institute of Technology (ISM), Dhanbad, Jharkhand, PIN 826004, India
b Department of Mechanical Engineering, Indian Institute of Technology (ISM), Dhanbad, Jharkhand, PIN 826004, India
c Department of Chemical Engineering, Birsa Institute of Technology Sindri, Dhanbad, Jharkhand, PIN 828123, India

* Corresponding Author: Email:

Frontiers in Heat and Mass Transfer 2018, 11, 1-12. https://doi.org/10.5098/hmt.11.15

Abstract

A systematic approach for the optimal positioning of multiple isothermal heat sources mounted on the walls of a side vented open cavity filled with natural air (Pr = 0.70) under natural convection and surface radiation is discussed. A numerical investigation is performed for the different possible cases with the two isothermal heat sources of equal dimensions mounted on the walls of the cavity. The geometrical parameters like the aspect ratio (A = 2), side vent ratio (W1 = 0.50) and side port ratio (W2 = 0.50) along with the most pertinent parameters like Rayleigh Number (10⁴ ≤ Ra ≤ 10⁷ ) and the surface emissivity of walls (0.05 ≤ ε ≤ 0.85) are the prime governing parameters in the different cases.

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Keywords

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