五孔探针非对向测量法在风洞自动测试系统的应用

Using of the Non nulling Mode Method of Five hole Probe in the Automatic Survey System of Wind Tunnel

从五孔探针的校准和使用方法出发，讨论了在风洞自动测试系统中采用非对向测量方法的可行性，给出了各种校准曲线和气动参数计算公式，分析了不同测量方法对实验结果的影响。结果表明，在风洞自动测试系统中采用非对向测量方法是提高测试速度、保证测试精度的行之有效的手段之一。

In many complex flow fields such as those encountered in turbomachines,the experimental determination of the steady-state,three dimensional characteristics of the flow field is frequently required.The results of programs to calibrate and employ five hole probes of both bunchshaped and spherical geometries are presented in this paper.Typical calibration curves and experimental data are included.The results and data show that the non nulling mode can be employed in the automatic survey system of wind tunnel and used for increasing the survey speed.