Gravity currents produced by constant and time varying inflow in a circular cross-section channel: Experiments and theory
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- 作者：S. Longo ; a ; sandro.longo@unipr.it" class="auth_mail" title="E-mail the corresponding author ; M. Ungarishb ; V. Di Federicoc ; L. Chiapponia ; F. Addonaa
- 关键词：Gravity current ; Variable influx ; Experiment ; Shallow-water model ; Froude number ; Choking effect
- 刊名：Advances in Water Resources
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：90
- 期：Complete
- 页码：10-23
- 全文大小：2430 K
文摘
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We investigate constant/time varying inviscid gravity currents in horizontal circular channels.
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The two cases of return and no-return flow are experimentally reproduced.
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Choking currents, i.e., energetically admissible intruding currents, are analyzed.
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Experiments are compared with theory with respect to the current end position in time.
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Experimental results are influenced by the displacement of the ambient fluid/air interface.