论文部分内容阅读
为适应高性能涵道螺旋浆精细化设计需求,基于雷诺平均Navier-Stokes控制方程和非结构网格旋转/静止滑移面技术,开展了涵道与与螺旋桨动/静部件干扰的作定常流及性能预测数值模拟方法研究。提出了静止与旋转域的多块网格布局策略及转/静滑移面技术,研究了涵道壁面与螺旋桨桨梢间隙的网格布局形式,有效解决了螺旋桨旋转流及螺旋桨与涵道干扰计算问题。研究结果表明:典型涵道螺旋桨算例的数值模拟结果与实验值和工程理论值符合一致,所发展的涵道螺旋桨CFD分析方法实用、有效。
In order to meet the needs of high-performance tunneling screw fine design, based on the Reynolds-averaged Navier-Stokes control equation and unstructured grid rotation / stationary slip surface technology, the steady-state flow between the tunnel and the dynamic / static propeller Research on Numerical Simulation of Performance Prediction. A multi-grid layout strategy of static and rotating domains and a slewing / static slip surface technology are proposed. The grid layout of the ducted wall and the propeller tip clearance is studied, which effectively solves the problems of the propeller rotation flow, the propeller and the ducted interference Calculate the problem. The results show that the numerical simulation results of a typical ducted propeller are consistent with the experimental values and engineering theoretical values. The developed CFD method for ducted propeller is practical and effective.