桨叶表面压力分布和螺桨性能的升力面算法
PREDICTION OF PROPELLER PRESSURE DISTRIBUTION AND PERFORMANCE BY LIFTING SURFACE THEORY
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摘要: 本文提供了一种根据升力面理论计算螺旋桨桨叶表面压力分布和螺旋桨性能的数值方法。这种方法适用于具有任意桨叶数、任意形状的螺旋桨。对两算例的计算结果和实验结果作了比较。Abstract: A numerical method is presented for prediction of propeller performance and pressure distribution on blade surface according to lifting surface theory.The lifting surface model consists of two layers of constant strength quadrilateral vortex-ring elements covering both surfaces of the blades.The velocity jump across vortex sheet is included in the computation of the pressure distribution.The effect of blade drag has been included in the calculation of propeller performance.Numerical results agree well with experimental data for the considered two propellers.
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