Visualization Experiment and Numerical Analysis of Cavitation Flow Characteristics in Diesel Fuel Injector Control Valve with Different Structure Design

作     者：MA Haoyuan ZHANG Tong AN Qingsong TAO Yuhao XU Yue MA Haoyuan;ZHANG Tong;AN Qingsong;TAO Yuhao;XU Yue

作者机构：School of Mechanical EngineeringTianjin UniversityTianjin 300350China Key Lab of Efficient Utilization of Low and Medium Grade EnergyTianjin 300350China Shanghai Marine Diesel Engine Research InstituteShanghai 201108China 

基　　金：supported by the National Natural Science Foundation of China(No.50906041) 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2021年第30卷第1期

页      码：76-87页

摘      要：Increasing the injection pressure has been proven an effective method to enhance performance and reduce pollutant of diesel *** the increase of the injection pressure,the cavitation damage problem inside common rail fuel injector is more significant,which has direct influences on reliability of diesel *** the most studies so far have focused on cavitation occurred in injector nozzle and its atomization characteristics,few researchers studied the cavitation phenomenon in fuel injector control *** due to the complexity of flow field and difficulty of experiment,the cavitation in control valve could not be fully described by existing *** this paper,the two-dimensional visualization experiment and numerical simulation of control valve was implemented to acquire the image of cavitation intuitively and validate the simulation method and *** a new structure design of control valve named convergent model was presented for *** origin model and convergent model with different valve lifts were simulated in three *** results showed that the sheet cavitation occurred at the surface of seal cone and steel ball then turned to cloud cavitation in downstream *** intensity of cavitation increased with the increase of valve *** model could efficiently reduce the cavitation intensity near the seal *** research could provide references for engineering optimization design of control valve.

主 题 词：diesel engine fuel injector control valve cavitation 

学科分类：080703[080703] 08[工学] 0807[工学-电子信息类] 

核心收录：

D　O　I：10.1007/s11630-020-1301-7

馆 藏 号：203990018...