The Detached-Eddy Simulation model has been applied on the NREL/NASA Ames Phase-VI rotor at zero degrees yaw. The Computational Fluid Dynamics (CFD) code EllipSys3D is used and results are compared with computations using a conventional Reynolds Averaged Navier-Stokes (RANS) turbulence model as well as measurements. The Detached-Eddy Simulation (DES) model is a method for predicting turbulence in CFD computations, which combines a RANS method in the boundary layer with Large Eddy Simulation (LES) in the free shear flow. Compared to pure RANS methods the DES approach resolves the detached vortices in a more physically correct manner, and previous work has shown better agreement with experimental data for highly separated flows. Recent computations have shown that the CFD code, EllipSys3D, is capable of predicting power and thrust coefficients together with normal and tangential force coefficients and pressure distributions successfully on the NREL/NASA Ames Phase-VI rotor using the k-ω
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机译:在零横摆的NRER / NASA AMES-VI转子上施加了分离涡流模拟模型。使用计算流体动力学(CFD)代码eLlipsys3D并将结果与使用传统雷诺平均的Navier-Stokes(RANS)湍流模型以及测量值进行比较。分离涡模拟(DES)模型是一种预测CFD计算中的湍流的方法,其将边界层中的RAN方法与自由剪切流程相结合。与纯RAN方法相比,DES方法以更具物理正确的方式解决了分离的涡流,并且之前的工作表明了与高度分离的流动的实验数据更好。最近的计算表明,CFD代码eLlipsys3D能够使用K-ω在NRER / NASA AMES-VI转子上成功地预测功率和推力系数和成功的正常和切向力系数和压力分布
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