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DES of the turbulent flow around a circular cylinder of finite height

机译:有限高度的圆柱体周围湍流的DES

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The current research work investigates numerically the turbulent flow field characteristics around three dimensional circular cylinder of finite height at Reynolds number of 43000 using Detached Eddy Simulation (DES) turbulence model. Comparison of the numerical results with the experiment data has been taken place. The results reveals that the DES turbulence model is superior for predicting the flow past the circular cylinder of finite height at this Re. The numerical results of this study show the great potential of the presented DES for investigating the complicated flow structure in this case. DES is very accurate for predicting the flow characteristics in many sophisticated cases and can reduce the computational efforts during the simulation process in comparison with Large Eddy Simulation (LES) turbulence mathematical model.
机译:当前的研究工作是使用分离涡流模拟(DES)湍流模型对雷诺数为43000的有限高度的三维圆柱体周围的湍流场特性进行数值研究。数值结果与实验数据进行了比较。结果表明,在此Re上,DES湍流模型对于预测流经有限高度圆柱体的流动是优越的。这项研究的数值结果表明,在这种情况下,提出的DES在研究复杂的流动结构方面具有巨大的潜力。与大涡流模拟(LES)湍流数学模型相比,DES在许多复杂情况下预测流量特性非常准确,并且可以减少模拟过程中的计算量。

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