NUMERICAL MODELLING OF CAVITATION: VALIDATION AND PARAMETRIC STUDIES

被引：46
|
作者：
Margot, X. [1 ]
Hoyas, S. [1 ]
Gil, A. [1 ]
Patouna, S. [1 ]
机构：
[1] Univ Politecn Valencia, CMT Motores Term, Valencia 46022, Spain
来源：
ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS | 2012年 / 6卷 / 01期
关键词：
cavitation; injection nozzle; modelling; choked flow; two-phase flow; FLOW;
D O I：
10.1080/19942060.2012.11015399
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The objective of the present work is to investigate numerically the 3D flow within diesel injector-like geometries using a cavitation model implemented in a commercial CFD code. A comprehensive study of various numerical parameters is performed which can subsequently be used to simulate cavitation under realistic diesel engine conditions. Numerical predictions were performed on a throttle channel at different operating conditions, with and without cavitation, and compared to available experimental measurements. Overall, it was found that the cavitation model was able to predict the onset of cavitation. Satisfactory agreement was found in both the injection rate and the occurrence of choked flow conditions when compared with experiments.
引用
收藏
页码：15 / 24
页数：10
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