【作者】 宋辉； 刘存良； 郭涛； 贾广森； 闫建坤；

【Author】 LIU Cun-Liang;SONG Hui;ZHU Hui-Ren;JIA Guang-Sen;YAN Jian-Kun;School of Power and Energy,Northwestern Polytechnical University;

【机构】 西北工业大学动力与能源学院；

【摘要】 在横流带肋通道结构下,运用数值计算,对比实验,通过研究对气膜孔进口,出口,孔内流动进行分析,与大腔进气结构和横流结构对比,模拟分析得到横流带肋结构下吹风比和横流雷诺数对气膜孔流量系数的影响,结果表明:选取的CFD计算方法符合实验结果;横流造成的孔内旋流和肋引起的气膜孔进口的堵塞对流量系数造成了影响;横流带肋通道结构下,横流雷诺数一定时,吹风比对流量系数的影响与大腔进气结构和横流结构较为相似,但仍有所区别。更多还原

【Abstract】 In the ribbed flow channel structure, by numerical investigation researching the entrance, exit and fliud dynamic of film hole, combined with the experimental research, the influence of the structure in different blowing ratios and crossflow Reynolds can be found. The research shows: CFD calculation and experimental methods used in the study results are in good agreement; under the ribbed crossflow channel structure, when it is small in blowing ratio, flow coefficient is significantly influenced by crossflow and ribs.; when the blowing ratio is the same, the influence of blowing ratio is similar to crossflow structure, but still have significantly different.更多还原