Note on the generalized thermal theory for gravity currents in the deceleration phase

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題名:	Note on the generalized thermal theory for gravity currents in the deceleration phase
作者:	Dai, Albert
貢獻者:	淡江大學水資源及環境工程學系
關鍵詞:	Deceleration;Detrainment;Generalized thermal theory;Gravitational convection;Gravity currents
日期:	2010-10
上傳時間:	2012-06-14 09:11:40 (UTC+8)
出版者:	Amsterdam: Elsevier BV
摘要:	The generalized thermal theory for gravitational convection, produced from instantaneous buoyancy sources on sloping boundaries, developed in Dai and Garcia (2010) is examined in this note. An assumption implicitly made therein, that detrained fluid carries no momentum, was inappropriate and the solution was not physical in special cases. The generalized thermal theory is now improved by considering the momentum carried away by detrained mixed fluid. An asymptotic velocity–distance relation for gravity currents further downslope in the deceleration phase is provided and agreement with reported experimental data is found.
關聯:	Dynamics of Atmospheres and Oceans 50(3), pp.424–431
DOI:	10.1016/j.dynatmoce.2010.07.001
顯示於類別:	[水資源及環境工程學系暨研究所] 期刊論文

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