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Turbulent free convection between vertical isothermal plates with asymmetrical heating

Turbulent free convection between vertical isothermal plates with asymmetrical heating Abstract Results of numerical investigation of the flow and heat transfer at turbulent free convection between the vertical parallel isothermal plates with different temperatures are presented. The temperature factor R T varied within −2 ÷ 1. The Rayleigh number changed within Ra = 107 ÷ 109, and the ratio of geometrical sizes of plates and distances between them was constant A = L/w = 10. Numerical studies were performed via the solution to the two-dimensional Navier—Stokes equations and energy equation in Boussinesq approximation. The considered boundary-value problem has the unknown conditions at the inlet and outlet between the plates. To describe turbulence, the modified low-Reynolds k-ɛ model was used. The effect of the temperature factor on the flow structure at the channel inlet and outlet was analyzed. Data on distributions of velocities and temperatures between the plates, local and integral heat transfer allow deeper understanding of the mechanism of transfer processes between the parallel plates with asymmetrical heating. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

Turbulent free convection between vertical isothermal plates with asymmetrical heating

Terekhov, V. I.; Ekaid, A. L.
Thermophysics and Aeromechanics , Volume 20 (2): 12 – Apr 1, 2013
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References (23)

Publisher
Springer Journals
Copyright
2013 V.I. Terekhov and A.L. Ekaid
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/S0869864313020030
Publisher site
See Article on Publisher Site

Abstract

Abstract Results of numerical investigation of the flow and heat transfer at turbulent free convection between the vertical parallel isothermal plates with different temperatures are presented. The temperature factor R T varied within −2 ÷ 1. The Rayleigh number changed within Ra = 107 ÷ 109, and the ratio of geometrical sizes of plates and distances between them was constant A = L/w = 10. Numerical studies were performed via the solution to the two-dimensional Navier—Stokes equations and energy equation in Boussinesq approximation. The considered boundary-value problem has the unknown conditions at the inlet and outlet between the plates. To describe turbulence, the modified low-Reynolds k-ɛ model was used. The effect of the temperature factor on the flow structure at the channel inlet and outlet was analyzed. Data on distributions of velocities and temperatures between the plates, local and integral heat transfer allow deeper understanding of the mechanism of transfer processes between the parallel plates with asymmetrical heating.

Journal

Thermophysics and Aeromechanics – Springer Journals

Published: Apr 1, 2013

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