PARALLEL ADAPTIVE SIMULATION OF A PLUNGING LIQUID JET

doi:10.1016/S0252-9602(10)60060-4

摘要/Abstract

摘要：

This paper is concerned with three-dimensional numerical simulation of a plunging liquid jet. The transient processes of forming an air cavity around the jet, capturing an initially large air bubble, and the break-up of this large toroidal-shaped bubble into smaller bubbles were analyzed. A stabilized finite element method (FEM) was employed under parallel numerical simulations based on adaptive, unstructured grid and coupled with a level-set method to track the interface between air and liquid. These simulations show that the inertia of the liquid jet initially depresses the pool's surface, forming an annular air cavity which surrounds the liquid jet. A toroidal liquid eddy which is subsequently formed in the liquid pool results in air cavity collapse, and in turn entrains air into the liquid pool from the unstable annular air gap region around the liquid jet.

关键词: plunging liquid jet, air entrainment, two-phase flows, level set method, parallel adaptive simulation

Abstract:

Key words: plunging liquid jet, air entrainment, two-phase flows, level set method, parallel adaptive simulation

中图分类号:

76B10

Azat Yu. Galimov, Onkar Sahni, Richard T. Lahey Jr., Donald A. Drew, Kenneth E. Jansen. PARALLEL ADAPTIVE SIMULATION OF A PLUNGING LIQUID JET[J]. 数学物理学报(英文版), 2010, 30(2): 522-538.

Azat Yu. Galimov, Onkar Sahni, Richard T. Lahey Jr., Donald A. Drew, Kenneth E. Jansen. PARALLEL ADAPTIVE SIMULATION OF A PLUNGING LIQUID JET[J]. Acta mathematica scientia,Series B, 2010, 30(2): 522-538.

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