Author:
LEI CHENGWANG,PATTERSON JOHN C.
Abstract
The authors have previously reported a model experiment on the unsteady natural
convection in a triangular domain induced by the absorption of solar radiation. This
issue is reconsidered here both analytically and numerically. The present study consists
of two parts: a scaling analysis and a numerical simulation. The scaling analysis for
small bottom slopes reveals that a number of flow regimes are possible depending on
the Rayleigh number and the relative value of certain non-dimensional parameters
describing the flow. In a typical situation, the flow can be classified broadly into a
conductive, a transitional or a convective regime determined merely by the Rayleigh
number. Proper scales have been established to quantify the flow properties in each
of these flow regimes. The numerical simulation has verified the scaling results.
Publisher
Cambridge University Press (CUP)
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Cited by
95 articles.
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