本文介绍了利用大口径、高灵敏度莫尔偏折法达得了大口径(φ500mm),高超音速(M=10.29)激波风洞中非对称流场的多方向莫尔偏折图;提出了一种基于对莫尔偏折角积分和双三次多结点插值样条有限级数展开的非对称流场三维再现方法,定量地计算了这种非对称流场的三维非对称流场的三维密度分布.

In this paper, a method of large-aperture (500 mm) and high sensitivity moire deflectometry is presented and used to obtain the multidirectional deflectograms of asymmetric flow field in high ultrasonic speed shock wave uind tunnel (M =10.29). At the same time, a 3-D reconstructive method of asymmetric flow field is presented which is based on the integration of moire deflective angle and double cubic many-Knot interpolating splines, and is used to calculate the 3-D density distribution of the asymmetric flow field.