摘要
提出了在二维柔壁自适应风洞中进行半模型实验的洞壁自适应方案,其特点是仅需在上下洞壁任意横向位置的一条流向测压线上测量壁压信息进行洞壁自适应调整;可根据实验模型的布局特征选择在水平面内可变形状的零洞壁干扰目标线,以改善模型区残余干扰分布特性。在西北工业大学二维柔壁自适应风洞中的实验研究表明可显著提高自适应壁风洞的效率,降低对实验设备的技术要求,并改善气动数据的准确度。
A wall adaptation strategy is put forward to test half model in two dimensional adaptive wall wind tunnels. It only needs to measure the pressure along any streamline of the to Pand bottom wall. The transformable target line without wall interference can be chosen according to the test model to improve the residual interference distribution in model area. The experimental tests have been performed to verify the method in NPU two dimensional adaptive wall wind tunnel. The results show that this method can increase the efficiency of adaptive wall wind tunnel and reduce the requirement of test equipments.
出处
《科学技术与工程》
2007年第14期3470-3474,3634,共6页
Science Technology and Engineering
关键词
自适应壁风洞
洞壁干扰
半模型实验
adaptive wall wind tunnel
wall interference
half model test
