一种高速风洞三维洞壁干扰壁压信息修正法

 给出以壁压信息法为基础的高速风洞三维模型试验洞壁干扰修正方法。该方法要求洞壁附近为亚音速流动,但允许模型附近出现超音速区及激波。方法可用于各种通气壁或实壁风洞的亚跨音速试验。最后对四个模型在三种试验段中的二十多种试验进行了修正,其结果和NASA非线性修正方法的结果吻合得很好。

A WALL-SIGNATURE METHOD FOR 3D HIGH SPEED WIND TUNNEL WALL INTERFERENCE CORRECTIONS

A wall-signature method for wall interference assessment and / or correction in high speed wind tunnel 3-dimensional model tests is presented. The method considers that the flow near tunnel walls is subcritical while the flow near model may be supercritical and shock waves may exist near by model. It can be used for various ventilated wall or solid wall wind tunnel tests in subsonic or transonic ranges. More than twenty test cases including four models in three different tunnels are corrected by this method. The corrected results coninside well with the results of NASA nonlinear method.