Effects of heating intensity on the transient natural convection flows in open cavities
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- 作者：Blas Zamora ; blas.zamora@upct.es" class="auth_mail" title="E-mail the corresponding author ; Germá ; n Sancho
- 关键词：Transient flows ; Convective flows ; Numerical simulation ; Transient evolution ; Open square cavities
- 刊名：International Journal of Heat and Mass Transfer
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：100
- 期：Complete
- 页码：861-875
- 全文大小：3045 K
文摘
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Transient heat transfer and mass flow rate are evaluated with constant and variable properties in cavities.
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Transient evolution of the flow is strongly affected when the heating intensity is high enough.
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The behavior of the relevant parameters becomes non monotonous for high values of Rayleigh.
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For high values of Rayleigh and the heating intensity, the isotherms detach to the heated wall, imitating waves.
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Rough correlations for the steady-state time, for Nusselt number and mass flow rate, as a function of Rayleigh.