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CFD analysis of a Micro-rotor In Ground Effect

机译:微型转子在地面效应中的CFD分析

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In this work computational fluid dynamics is validated using experimental results for a model rotor In Ground Effect. The paper concentrates on the evaluation and prediction of the performance of the rotors and on the outwash generated In Ground Effect. Finally, safety considerations in terms of outflow forces and particles in the flow field are presented, comparing the results with other safety, distance based criteria. Using data of three different aircraft, scaling factors have been used to take into account the different size of the small-rotor studied and real case scenarios. The results show how heavier helicopters may generate the most dangerous situations, in terms of induced forces and presence of particles in a delimited area.
机译:在这项工作中,使用模型转子在地面效应下的实验结果验证了计算流体动力学。本文着重于对转子性能的评估和预测以及在地面效应中产生的冲刷。最后,提出了关于流场中的流出力和颗粒的安全注意事项,并将结果与​​其他基于距离的安全性标准进行了比较。利用三架不同飞机的数据,比例因子已用于考虑所研究的小旋翼和实际情况的不同大小。结果表明,较重的直升机可能会在有限区域内的感应力和微粒的存在下产生最危险的情况。

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