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首页> 外文会议>ASME International Conference on Ocean, Offshore and Arctic Engineering >STUDIES ABOUT DESIGN OF REAR STATOR OF DUCTED PROPELLER USING CFD
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STUDIES ABOUT DESIGN OF REAR STATOR OF DUCTED PROPELLER USING CFD

机译：基于CFD的导管式螺旋桨后定子设计研究

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Ducted propeller designs are becoming more popular because of their high efficiency, resistance to cavitation and low radiated noise. In this paper, unsteady RANS simulations are carried out for the design of rear stators for ducted propeller to improve its hydrodynamic performance. The design of rear stator is carried out based on the wake field behind propellers. The two-dimensional airfoil modified from NACA4603 is studied to obtain the angle of attack that makes thrust on stators maximum. The analyses are performed at different angles of attack, using commercial computational fluid dynamics (CFD) solver STAR-CCM+ to solve URANS equations. URANS equations are discretized by finite volume method and solved by PISO algorithm. Simulations have been made using unstructured grid with mesh moving technique. The simulation results indicate that the total thrust coefficient and efficiency of modified ducted propeller have been improved by 7.32% and 5.72% respectively compared with the parent one. The simulation results show that the design method is reasonable and feasible.
机译：管道螺旋桨设计因其高效，抗气蚀和低辐射噪声而变得越来越流行。本文针对管道螺旋桨的后定子设计进行了非稳态RANS仿真，以提高其流体力学性能。后定子的设计是基于螺旋桨后面的尾流场进行的。研究了从NACA4603修改而来的二维机翼，以获得使定子推力最大的迎角。使用商业计算流体力学（CFD）求解器STAR-CCM +在不同的迎角下进行分析，以求解URANS方程。 URANS方程通过有限体积法离散化，并通过PISO算法求解。使用具有网格移动技术的非结构化网格进行了仿真。仿真结果表明，改进后的导管式螺旋桨总推力系数和效率分别比上一代提高了7.32％和5.72％。仿真结果表明该设计方法是合理可行的。

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