SIMULATED AND EXPERIMENTAL 2-LAYER FLOWS PAST ISOLATED 2-DIMENSIONAL OBSTACLES

被引：7

作者：

CUMMINS, PF

TOPHAM, DR

PITE, HD

机构：

[1] Institute of Ocean Sciences, BC V8L-4B2

来源：

FLUID DYNAMICS RESEARCH | 1994年 / 14卷 / 03期

关键词：

D O I：

10.1016/0169-5983(94)90055-8

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Laboratory flows of a two-layer fluid past an isolated two-dimensional obstacle are compared with simulations from a numerical model based on a streamfunction-vorticity formulation of the governing equations. A detailed model-data comparison of the interface position and drag force at varying Froude numbers is discussed. Inviscid runs with the numerical model accurately simulate the upstream propagating disturbances and reproduce the interface displacement in the vicinity of the obstacle. Model drag forces from a Bernoulli calculation agree with the experimental forces over part of the Froude number range considered. However, at higher Froude numbers the obstacle drag is underestimated by the model due to neglect of viscous effects.

引用

页码：105 / 119

页数：15

共 20 条

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