Natural convection stratification and scaling in a cavity with unsteady sidewall heating

Zhou, Linjing, Armfield, Steven, Williamson, Nicholas, Kirkpatrick, Michael, and Lin, Wenxian (2018) Natural convection stratification and scaling in a cavity with unsteady sidewall heating. In: AIP Conference Proceedings (1983) 020034. From: ICOME 2017: 3rd International Conference on Mechanical Engineering: disruptive innovation in mechanical engineering for industry competitiveness, 5–6 October 2017, Surabaya, Indonesia.

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Abstract

The flow development and behaviour of a fluid in a two-dimensional cavity, heated and cooled periodically from one sidewall, with all other walls adiabatic, is investigated via numerical simulation. The heating and cooling on the sidewall produce alternating direction vertical natural convection boundary layers that entrain fluid from the cavity interior and discharge it at the top and bottom of the cavity. At full development the flow is quasi steady with the natural convection boundary layers maintaining a stable stratification in the cavity interior and the heat content oscillating around a zero mean value. The stratification strength is shown to be strongly dependent on the forcing frequency.

Item ID: 55702
Item Type: Conference Item (Research - E1)
ISBN: 978-0-7354-1699-4
Date Deposited: 26 Sep 2018 08:04
FoR Codes: 09 ENGINEERING > 0915 Interdisciplinary Engineering > 091504 Fluidisation and Fluid Mechanics @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970109 Expanding Knowledge in Engineering @ 100%
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