Numerical investigation of turbulent natural convection in an inclined square cavity with a hot wavy wall
type: Item
instance of: scholarly article
title: Numerical investigation of turbulent natural convection in an inclined square cavity with a hot wavy wall
zbMATH Open document ID: 1121.80003
author: M. Aounallah
author: O. Imine
author: L. Adjlout
author: Yacine Addad
author: Sofiane Benhamadouche
author: Dominique Laurence
published in: International Journal of Heat and Mass Transfer
publication date: 2007-04-26T00:00:00Z
review text: The article describes numerical investigations of turbulent natural convection of air flow in an inclined square cavity with a hot wavy wall. The focus is on studying the effect of the inclination angle and the amplitude of the undulation on the turbulent heat transfer. After reviewing literature in Sect. 1, a description of the physical problem set-up (Sect. 2) and its mathematical formulation (Sect. 3), general comments on the numerical procedures employed are given in Sect. 4. Before considering the cavity with the undulated hot wall, low Reynolds number \(k-\varepsilon\), \(k-\omega\), \(k-\omega\) SST RANS models (using FLUENT) and a coarse DNS (SATURNE Code) are tested for a simpler model problem for which experimental data is available. Based on the outcome of this pre-study, the \(k-\omega\) SST model appears to be best suited to numerically solve the problem of turbulent natural convection of air flow in an inclined square cavity with a hot wavy wall (Sect. 5) The behavior of the proposed numerical method is investigated, among others, by evaluating it on different grids. Emphasis is placed on values of temperature, Nusselt number, velocities and turbulent viscosity for Rayleigh numbers up to \(Ra=10^{12}\) (Sect. 6). Sect. 7 summarizes the conclusions, adequate references are given.
reviewed by: Nina Kirchner
Mathematics Subject Classification ID: 80A20
Mathematics Subject Classification ID: 76R10
Mathematics Subject Classification ID: 76F35
zbMATH DE Number: 5146951
zbMATH Keywords: natural convection
zbMATH Keywords: heat transfer
zbMATH Keywords: undulation
zbMATH Keywords: coarse DNS, \(k-\omega\) SST model
MaRDI profile type: Publication
full work available at URL: j.ijheatmasstransfer.2006.10.015
OpenAlex ID: W1992147490
Wikidata QID: Q57748988
DOI: 10.1016/J.IJHEATMASSTRANSFER.2006.10.015
description: scientific article; zbMATH DE number 5146951