某高空螺旋桨气动特性数值模拟与风洞试验

以某高空螺旋桨为研究对象,利用k-ε湍流模型,采用三维Navier-Stokes方程,并通过数值计算模拟该螺旋桨的复杂绕流,分析其气动特性.按照等雷诺数等前进比准则,进行了该螺旋桨地面缩比风洞试验.经过比较发现,计算结果与试验结果吻合良好.验证了数值模拟计算高空螺旋桨气动特性的正确性,为高空螺旋桨的设计和试验提供参考依据.

Numerical simulation of high altitude propeller’s aerodynamic characteristics and wind tunnel test

High altitude propeller was studied. The three-dimensional Navier-Stokes equations were used to simulate the complex flow around a high altitude propeller and its aerodynamic characteristics were analyzed, in which the k-ε turbulence model was used. In accordance with similarity criteria such as equal Reynolds number and equal advanced ratio, the scaled model test of high altitude propeller was carried out. The simulation results are in good agreement with test results. The feasibility of the numerical simulation method for aerodynamic characteristics calculation of high altitude propeller is proved, and provides reference basis for the design and test of high altitude propellers.