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本文应用速矢变换法并结合有限差分计算求解非对称二维收敛喷管可压缩流问题。用给定适当的流动参数,在速度图的范围内首先确定问题的解。然后以直接积分求得相应的喷管结构和局部流场特性,还提出了在某些约束条件下向量推力的性能与结构设计,为了验证起见,还进行了风洞实验以期获得沿喷管壁面的压力数据,结果表明理论数据与实测数据良好地吻合。
In this paper, the unsteady compressible flow of asymmetric two-dimensional convergent nozzle is solved by the fast-vector method and the finite difference method. Given the appropriate flow parameters, the solution to the problem is first determined within the speed map. Then, the corresponding nozzle structure and local flow field properties are obtained by direct integral. The performance and structure design of the vector thrust under some constraints are also proposed. For the purpose of verification, wind tunnel experiments are also carried out to obtain the results of the nozzle flow along the nozzle wall The results show that the theoretical data agree well with the measured data.