To study the design method of the sprue of surrounding turboprop inlet,the annular section design method is applied to carry out the parametric design,and the profile equation and the cubic B-spline curve are used to construct the aerodynamic profile of the inlet.By numerical simulation,the influence of different upper and lower profile line parameter equations and the variation law of the expansion angle of the circle center on the performance of the intake port is studied,and the optimized configuration of the intake port is obtained by adjusting the parameters.The results show that compared with the initial model,the total pressure recovery coefficient of the intake port model obtained after optimization is increased by 0.13％,and the total pressure distortion is reduced by 8.4％.
维普
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