文章基本信息

标题：Filter-based density correction model for turbulent cavitating flows
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作者：B Huang ; G H Chen ; J Zhao 等
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2012
卷号：15
期号：6
DOI：10.1088/1755-1315/15/6/062003
出版社：IOP Publishing
摘要：To improve the predictions of the unsteady cavitating flows, a Filter-Based Density Correction model (FBDCM) is proposed, which blends the FBM and DCM models according to the local fluid density. The new FBDCM model can effectively modulate the eddy viscosity, according to the multi-phase characteristic of unsteady cavitating flows. From the experimental validations regarding the force analysis, the unsteady cavity visualization and velocity distributions, the results show that more favorable agreement with experimental visualizations and measurements are obtained with the FBDCM model. Furthermore, the physical instability mechanism of cloud cavitation is investigated with FBDCM model.