Numerical modelling of two-dimensional and axisymmetric gravity currents

被引：13

作者：

Patterson, MD ^{[1
]}

Simpson, JE ^{[1
]}

Dalziel, SB ^{[1
]}

Nikiforakis, N ^{[1
]}

机构：

[1] Univ Cambridge, Ctr Math Sci, Dept Appl Math & Theoret Phys, Cambridge CB3 0WA, England

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS | 2005年 / 47卷 / 10-11期

关键词：

Implicit Large Eddy Simulation (ILES); gravity-driven flows; gravity current;

D O I：

10.1002/fld.841

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A series of two-dimensional (21)), axisymmetrie and three-dimensional (3D) numerical flow simulations using an implicit large Eddy simulation (ILES) are carried out for gravity-driven fluid flows. The results are compared directly with experiments undertaken to test the model. Two-dimensional results show that the Large Eddy algorithm is successful in modelling a gravity current's large scale structure. Examination of the 3D results shows that macroscopic features of the flow (the lobe and cleft instability) observed at the interface between the light and dense fluid are also modelled well. Copyright (c) 2005 John Wiley A Sons, Ltd.

引用

页码：1221 / 1227

页数：7

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