Numerical study on cavitation in a globe control valve with different numbers of anti-cavitation trims

作     者：Hamidreza YAGHOUBI Seyed Amir Hossein MADANI Mansour ALIZADEH Hamidreza YAGHOUBI;Seyed Amir Hossein MADANI;Mansour ALIZADEH

作者机构：Department of Mechanical EngineeringIran University of Science and TechnologyTehran 16846-13114Iran 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2018年第25卷第11期

页      面：2677-2687页

核心收录：

学科分类：080704[工学-流体机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 

主　　题：numerical analysis anti-cavitation trim globe control valve 

摘      要：Cavitation is a destructive phenomenon in control *** order to delay cavitation,a multi-series of perforated cylindrical plates,called trims,are ***,the effects of orifice diameter and different types of trims have been *** this study,by numerical analysis,a globe control valve was investigated by employing four different cases(without trim,with one trim,with two and three trims)and the impact of the number of these trims on the intensity,formation region and the initiation point of cavitation was *** was found that the addition of one stage or two stages of trims reduces the intensity and delays the onset of cavitation,relative to the valve without ***,no significant differences in terms of intensity and initiation point of cavitation were observed in the cases where two or three trims were ***,due to the high cost of producing the trims,and the severe drop in flow coefficient,it is not economically and technically justified to increase the number of trims to more than three.