A direct three-dimensional simulation of radiation-induced natural convection in a shallow wedge

Lei, Chengwang, and Patterson, John C. (2003) A direct three-dimensional simulation of radiation-induced natural convection in a shallow wedge. International Journal of Heat and Mass Transfer, 46 (7). pp. 1183-1197.

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Abstract

A three-dimensional numerical simulation is carried out to investigate the natural convection in a shallow wedge subject to solar radiation. The study reveals three distinct stages of the flow development from an isothermal and stationary state: an initial stage, a transitional stage and a quasi-steady stage. The heat transfer at the initial stage is dominated by conduction from the sloping bottom. The transitional stage starts with the onset of instabilities, and the quasi-steady state is characterised by steady growth of a spatially averaged temperature. The present results have confirmed the earlier observations in a flow visualisation experiment and a two-dimensional simulation.

Item ID: 10072
Item Type: Article (Research - C1)
ISSN: 1879-2189
Keywords: boundary layer; buoyancy; natural convection; radiation; simulation; wedge
Funders: Australian Research Council
Date Deposited: 29 Mar 2010 01:16
FoR Codes: 09 ENGINEERING > 0915 Interdisciplinary Engineering > 091504 Fluidisation and Fluid Mechanics @ 60%
09 ENGINEERING > 0915 Interdisciplinary Engineering > 091505 Heat and Mass Transfer Operations @ 40%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970109 Expanding Knowledge in Engineering @ 100%
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