Numerical Modelling of Two-dimensional and Axisymmetric Gravity Currents
نویسندگان
چکیده
A series of two-dimensional, axisymmetric and three-dimensional 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 three-dimensional 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 © 2004 John Wiley & Sons, Ltd.
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