公开(公告)号：US5207388A

公开(公告)日：1993-05-04

申请号：US886394

申请日：1992-05-21

申请人： Rene G. G. M. Leroux ,  Gilles P. Taquin

发明人： Rene G. G. M. Leroux ,  Gilles P. Taquin

IPC分类号： G01M9/04 ,  G01N3/60 ,  H05H1/26 ,  H05H1/34

CPC分类号： H05H1/26 ,  H05H1/34 ,  H05H2001/3478 ,  H05H2001/3484

摘要： Inner profile nozzle adapted for high temperature testing of specimens of the "plane board" type includes an axisymmetric convergent, a throat region, a divergent super-elliptic lying on two rectilinear generating lines taken along two perpendicular planes, including a small axis generating line having a slope of about 1.degree., and a long axis generating line having a slope of about 10.degree.. The throat region is provided with corresponding circular generating lines having downstream ends coupled with the small axis and the long axis generating lines by a curve obtained from an equation whose first and second derivatives are continuous, and whose third derivative is monotonic, so as to eliminate or reduce recompression problems and possible formation of shocks. This nozzle is particularly applicable to the high temperature testing of space vehicle materials.

摘要翻译： 适用于“平面板”型样品的高温试验的内部轮廓喷嘴包括位于沿两个垂直平面截取的两条直线生成线上的轴对称收敛，喉部区域，发散超椭圆形，其包括具有 大约1°的斜率和大约10°斜率的长轴生成线。 喉部区域设置有相应的圆形发电线，其具有通过从其第一和第二导数连续的方程获得的曲线与小轴和长轴生成线耦合的下游端，并且其三阶导数是单调的，以便消除 或减少再压缩问题和可能形成的冲击。 该喷嘴特别适用于空间车辆材料的高温试验。