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COMBINED NATURAL CONVECTION AND SURFACE RADIATION IN A SQUARE CAVITY WITH THE INVERSELY LINEARLY HEATED OPPOSITE SIDE WALLS

Ravi Shankar Prasada,*,†, Ujjwal Kumar Nayaka, Rajen Kumar Nayaka, Amit Kumar Guptab

a Department of Mechanical Engineering, B.I.T. Sindri, P.O.: Sindri Institute, Sindri, Dhanbad, Jharkhand, PIN: 828123, India
b Department of Chemical Engineering, B.I.T. Sindri, P.O.: Sindri Institute, Sindri, Dhanbad, Jharkhand, PIN: 828123, India
* Department of Mechanical Engineering, B.I.T. Sindri, P.O.: Sindri Institute, Sindri, Dhanbad, Jharkhand, PIN: 828123, India
† Corresponding author. Email: rsprasad.me@bitsindri.ac.in

Frontiers in Heat and Mass Transfer 2022, 19, 1-7. https://doi.org/10.5098/hmt.19.4

Abstract

This paper presents the results of numerical analysis of coupled laminar natural convection and surface radiation in a two-dimensional closed square cavity with the inversely linearly heated vertical opposite side walls and the adiabatic top and bottom walls. The cavity is filled with natural air (Pr = 0.70) as the fluid medium. In the present study, the governing equations i.e., Navier-Stokes Equation in the stream function - vorticity form and Energy Equation are solved for a constant property fluid under the Boussinesq approximation. For discretization of these equations, the finite volume technique is used. For the radiation calculations, the radiosity-irradiation formulation is used and the shape factors are calculated using the Hottel’s crossed-string method. The effects of pertinent parameters like Rayleigh Number (103 ≤ Ra ≤ 106 ) and the surface emissivity of walls (0.05 ≤ε≤ 0.85) are studied and analyzed.

Keywords

natural convection, surface radiation, stream function, vorticity, inversely linearly heated, closed cavities.

Cite This Article

APA Style
Prasad, R.S., Nayak, U.K., Nayak, R.K., Gupta, A.K. (2022). COMBINED NATURAL CONVECTION AND SURFACE RADIATION IN A SQUARE CAVITY WITH THE INVERSELY LINEARLY HEATED OPPOSITE SIDE WALLS. Frontiers in Heat and Mass Transfer, 19(1), 1–7. https://doi.org/10.5098/hmt.19.4
Vancouver Style
Prasad RS, Nayak UK, Nayak RK, Gupta AK. COMBINED NATURAL CONVECTION AND SURFACE RADIATION IN A SQUARE CAVITY WITH THE INVERSELY LINEARLY HEATED OPPOSITE SIDE WALLS. Front Heat Mass Transf. 2022;19(1):1–7. https://doi.org/10.5098/hmt.19.4
IEEE Style
R.S. Prasad, U.K. Nayak, R.K. Nayak, and A.K. Gupta, “COMBINED NATURAL CONVECTION AND SURFACE RADIATION IN A SQUARE CAVITY WITH THE INVERSELY LINEARLY HEATED OPPOSITE SIDE WALLS,” Front. Heat Mass Transf., vol. 19, no. 1, pp. 1–7, 2022. https://doi.org/10.5098/hmt.19.4



cc Copyright © 2022 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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