Negatively buoyant flow in diverging channel. IV: Entrainment and dilution

摘要: A negatively buoyant inflow to a lake or reservoir sinks the bottom and forms an underflow. In this process, “plunging flow” entrains ambient water becomes diluted. The dilution alters buoyancy hence flow behavior of Since literature on entrainment by underflows does not include process” itself, great uncertainty exists when initial conditions have be estimated. Therefore, density driven plunging phenomenon is experimentally investigated in horizontal diverging channel. Entrainment rates are determined from velocity temperature measurements related channel diffuser angle, densimetric Froude number, aspect ratio. experiments conducted at Reynolds numbers larger than 10,000. Experimental angles varied 3° 180°, 1.8 21 ratios 0.5 1.8. information use as input one‐dimensio...