{"title":"Hysteresis properties of submerged jet cavitation in axis-symmetrical cavity","authors":"Yuchuan Wang, C. Gao, L. Tan, S. Cao","doi":"10.13465/J.CNKI.JVS.2015.18.020","DOIUrl":null,"url":null,"abstract":"对轴对称腔体内淹没射流的空化流动特征进行了高速摄像观测和试验研究,得到了腔体内和下喷嘴出口管内流动的空化数与工作射流雷诺数(Re)的变化规律。试验研究发现,在一定的Re范围内,空化数随Re数发生跳跃变化,腔体内空化形态发生突变,空泡形态由突变前的小直径空泡剧变为突变后的大直径空泡。Re减小变化过程发生空化数跳跃的Rec小于Re增大变化过程发生空化数跳跃的Rec,两者存在滞后效应。在试验的腔长范围(6≤Lc/d1≤13)内,Re增大变化过程和Re减小变化过程的Rec均随腔长线性变化,但后者变化的斜率小于前者,滞后效应随着腔长的增长而扩大。","PeriodicalId":39722,"journal":{"name":"振动与冲击","volume":"34 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2015-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"振动与冲击","FirstCategoryId":"1087","ListUrlMain":"https://doi.org/10.13465/J.CNKI.JVS.2015.18.020","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Physics and Astronomy","Score":null,"Total":0}
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