摘要
临壁效应会使压力探针的测量结果发生误差。由于探针属非流线形物休，所以其临壁效应的机理与流线形的机翼不同，不能简单套用机翼的结论．对圆柱三孔针的试验结果表明，可以用叠加点涡的方法来描述其临壁效应。点涡强度随离壁距离的减少而增强．
Because the contour of the pressure probes does not be streamline basically,the mechanism of the wall proximity effects of the pressure probes will not be the same with the wing. As an example,the three holes cylinder probe had been investigated. Its mechanism had been shown in Fig. 1 and 3. The effect of the wall could be considered as a vortex,so the Error-(L/R)relations could be established.
