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RANS Computation of Propeller Tip Vortex Flow

机译:螺旋桨叶尖涡流的RANS计算

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摘要

The steady-state tip vortex flow generated by a marine propeller has been computed using a RANS solver. A spiral-like structured grid with grid concentration aligned with the vortex core was generated. Validation studies have been carried out for the David Taylor Model Basin (DTMB) 5168 propeller model at the open-water condition. Various eddy viscosity turbulence models and Reynolds-stress models were employed in the computations. The effect of the turbulence modeling and the grid resolution on the solution was investigated. The computed velocity field was compared with experimental data.
机译:船用螺旋桨产生的稳态尖端涡流已使用RANS求解器进行了计算。产生了螺旋状的结构化格栅,其格栅浓度与涡旋核对准。已经在开放水域条件下对David Taylor模型盆地(DTMB)5168螺旋桨模型进行了验证研究。计算中采用了各种涡流湍流模型和雷诺应力模型。研究了湍流建模和网格分辨率对解决方案的影响。将计算出的速度场与实验数据进行比较。

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