Natural convection in a cavity with time-dependent flux boundary

Zhou, L., Armfield, S.W., and Lin, W. (2020) Natural convection in a cavity with time-dependent flux boundary. In: Proceedings of the 22nd Australasian Fluid Mechanics Conference. 67. From: AFCM2020: 22nd Australasian Fluid Mechanics Conference, 7-10 December 2020, Brisbane, QLD, Australia.

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Abstract

Numerical simulations have been carried out to investigate the unsteady natural convection flow in a cavity subjected to a sidewall heat flux varying sinusoidally with time. With all walls non-slip and the upper and lower boundaries and one sidewall adiabatic, the heating and cooling on the other sidewall produces an alternating direction natural convection boundary layer that discharges hot fluid to the top and cold fluid to the bottom of the cavity, generating a strong and time-varying thermal stratification in the cavity interior. The thermal stratification is shown to be strongly dependent on the forcing frequency.

Item ID: 65413
Item Type: Conference Item (Research - E1)
ISBN: 978-1-74272-341-9
Keywords: Natural convection flow; Numerical simulation; Heat transfer
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Copyright Information: Creative Commons Attribution noncommercial
Funders: Australian Research Council (ARC)
Date Deposited: 13 Jan 2021 23:10
FoR Codes: 40 ENGINEERING > 4012 Fluid mechanics and thermal engineering > 401204 Computational methods in fluid flow, heat and mass transfer (incl. computational fluid dynamics) @ 50%
40 ENGINEERING > 4012 Fluid mechanics and thermal engineering > 401299 Fluid mechanics and thermal engineering not elsewhere classified @ 50%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970109 Expanding Knowledge in Engineering @ 100%
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