A Computational Study of Cavitation Model Validity Using a New Quantitative Criterion  

作　　者：Hagar Alm El-Din ZHANG Yu-Sheng Medhat Elkelawy Hagar Alm El-Din;张煜盛;Medhat Elkelawy(School of Energy&Power Engineering,Huazhong University of Science and Technology,Wuhan 430074)

机构地区：[1]School of Energy&Power Engineering,Huazhong University of Science and Technology,Wuhan 430074

出　　处：《Chinese Physics Letters》2012年第6期193-195,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(51176057);the Specialized Research Fund for the Doctoral Program of Higher Education of China(20100142110081).

摘　　要：The predictive capability of two different numerical cavitation models accounting for the onset and development of cavitation inside real-sized diesel nozzle holes is assessed on the basis of the referenced experimental data.The calculations performed indicate that for the same model assumptions,numerical implementation,discretization scheme,and turbulence grid resolution model,the predictions for differently applied physical cavitation submodels are phenomenologically distinct from each other.We present a comparison by applying a new criterion for the quantitative comparison between the results obtained from both cavitation models.

关 键 词：CAVITATION CRITERION TURBULENCE 

分 类 号：O35[理学—流体力学]