Natural convection in a triangular enclosure induced by solar radiation

Mao, Yadan, Lei, Chengwang, and Patterson, John (2007) Natural convection in a triangular enclosure induced by solar radiation. In: 16th Australasian Fluid Mechanics Conference, pp. 406-410. From: 16th Australasian Fluid Mechanics Conference, 3-7 DEC 2007, Gold Coast, QLD, Australia.

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Abstract

Natural convection in a triangular enclosure induced by solar radiation is simulated and analyzed. The numerical simulation reveals three possible distinct flow regimes in the enclosure. It also reveals the variations of the dominant heat transfer mode and the flow status with the horizontal position along the wedge. The whole domain can be divided horizontally into several regions according to the dominant mode of heat transfer. For small Rayleigh numbers, heat transfer over the entire domain is dominated by conduction. For medium Rayleigh numbers, there are two distinct regions. Heat transfer in the near shore region is dominated by conduction. As the distance from the shore increases, stable convection becomes tile dominant mode. The region dominated by stable convection expands with increasing Rayleigh numbers. For high Rayleigh numbers, the whole region can be divided into three distinct regions where the dominant mode of heat transfer changes from conduction to stable convection and then to unstable convection as the distance from the shore increases The region of flow instability also expands with increasing Rayleigh number.

Item ID: 3165
Item Type: Conference Item (Refereed Research Paper - E1)
Keywords: natural convection; mixing; reservoir; solar radiation; triangular enclosure; fluid mechanics
Additional Information:

ISBN: 978-1-86499-894-8
Date Deposited: 09 Oct 2009 05:49
FoR Codes: 09 ENGINEERING > 0915 Interdisciplinary Engineering > 091504 Fluidisation and Fluid Mechanics @ 60%
09 ENGINEERING > 0915 Interdisciplinary Engineering > 091505 Heat and Mass Transfer Operations @ 30%
09 ENGINEERING > 0915 Interdisciplinary Engineering > 091508 Turbulent Flows @ 10%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 100%
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