ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

The two-fluid method using linear cavitation model was utilized to simulate GDI multi-hole injector nozzle flow. The evolutionary law of the cavitation flow pattern was analyzed. Cavitation criterions were summarized and compared. Results showed that cavitation was formed at the hole corner and the gap between the moving needle and valve seat. Cavitation flow pattern was unstable and changed with time. Nozzle flow rate decreased and while exit velocity increased due to the cavitation. Also each hole flow rate was different. The critical cavitation number was efficient to predict the cavitation. The non-cavitation flow of GDI multi-hole injector could only be appeared when the injector worked in low injection pressure and high ambient pressure for stratified combustion applications.