This article is cited in 14 papers

Dispersion and blockage effects in the flow over a sill

V. Yu. Lyapidevskii, K. N. Gavrilova

Lavrent’ev Institute of Hydrodynamics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090

Abstract: The problem of a homogeneous heavy liquid flow over a local obstacle is considered in the long-wave approximation. The steady and unsteady waves in the vicinity of the obstacle are described by second-order models of the shallow-water theory and their hyperbolic approximations. The flow in the vicinity of the leading and trailing edges of bluff bodies (sills and steps) is studied. The solution of the problem of the blocked zone upstream of the step is constructed.

Keywords: homogeneous liquid, equations of the shallow-water theory, dispersion effects, flow over a sill.

UDC: 532.59

Received: 23.03.2007

 English version: Journal of Applied Mechanics and Technical Physics, 2008, 49:1, 34–45

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