Grid-averaged Lagrangian equations of dispersed phase in dilute two-phase flow

Keh Chin Chang, Jinn Cherng Yang, Muh Rong Wang

研究成果: Article

5 引文 斯高帕斯(Scopus)

摘要

A set of grid-averaged Lagrangian transport equations of the dispersed-phase turbulence kinetic energy <upik′upik′> and the turbulence modulation quantity <u′iupik′> is derived and demonstrated through a well-defined test problem of droplet-loading mixing layer. It is shown that accurate predictions of the turbulence kinetic energy of the droplets can be achieved by solving from this set of grid-averaged Lagrangian equations with significantly less computational droplets than those of a purely stochastic model. The information of the turbulence modulation quantity, which is solved from the grid-averaged Lagrangian transport equation of <u′iupik′>, can also be used to evaluate accurately the source term accounting for the two-phase interaction in the turbulence kinetic energy k transport equation of the carrier fluid, which is important for determining the turbulence characteristics of the carrier fluid.

原文English
頁(從 - 到)1292-1303
頁數12
期刊AIAA journal
41
發行號7
DOIs
出版狀態Published - 2003 七月

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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