用IFA300热膜风速仪测量双舌形挡板VGT无叶喷嘴出口流场的研究

Investigation on Velocity Distribution at Vaneless Nozzle Exit of VGT Scroll Volute with IFA300 Anemometer X Probes

本文给出了用ＩＦＡ３００ 热膜（ 热线） 风速仪Ｘ 形探针测量双舌形挡板变截面涡轮蜗壳无叶喷嘴出口速度场的方法，分析了挡板开度对无叶喷嘴出口气流参数的影响。

In this paper,the velocity field at scroll volute vaneless nozzle exit of double tongue board VGT is measured with IFA300 hot film(hot wire) anemometer,and the effect of the board position on the velocity distribution is analyzed.