Natural convection in a square cavity with partially active vertical walls: time-periodic boundary condition
type: Item
instance of: scholarly article
title: Natural convection in a square cavity with partially active vertical walls: time-periodic boundary condition
zbMATH Open document ID: 1200.76171
DOI: 10.1155/MPE/2006/23425
author: N. Nithyadevi
author: S. Sivasankaran
author: P. Kandaswamy
published in: Mathematical Problems in Engineering
publication date: 2010-12-01T00:00:00Z
review text: Summary: A numerical study of transient natural convection in a square cavity with partly thermally active side walls is introduced. The thermally active regions of the side walls are periodic in time. Top and bottom of the cavity are adiabatic. Nine different positions of the thermally active zones are considered. The governing equations are solved using control volume method with power-law scheme. The results are obtained for various values of amplitude, period, and Grashof numbers ranging from \(10^{4}-10^{6}\) and different thermally active situations. It is found that the average heat transfer increases by increasing amplitude for \(P=1,5\), and decreasing for \(P=3\). The average Nusselt number behaves nonlinearly as a function of period.
Mathematics Subject Classification ID: 76R10
Mathematics Subject Classification ID: 80A20
zbMATH DE Number: 5822563
MaRDI profile type: Publication
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description: scientific article; zbMATH DE number 5822563