Numerical Investigation of Plunging Density Current

作者: PE Bournet , Denis Dartus , B Tassin , B Vincon-Leite , None

DOI: 10.1061/(ASCE)0733-9429(1999)125:6(584)

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摘要: When a buoyant inflow of higher density enters reservoir, it sinks below the ambient water and forms an underflow. Downstream plunge point, flow becomes progressively diluted due to fluid entrainment. The entrainment rate is strongly dependent on Richardson number reaches constant value well downstream point. This study concerned with analysis plunging phenomenon determination A k-e model including buoyancy effects, both in sloping diverging channel, used reproduce main characteristics. relation between depth at point channel width established, theoretical results for calculation dense layer thickness are provided. latter indicates that spreading function width. predictions line location agreemen...

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