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Assessment of Rotorcraft Download Using Helios

机译：使用Helios评估旋翼飞行器下载

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Rotorcraft download is an important design consideration for the design of hovering vehicles. High fidelity Computational Fluid Dynamics (CFD) predictions of download are time consuming to compute and the presence of unsteady bluff-body flow shedding over the helicopter fuselage challenges CFD's ability to correctly predict drag. This paper investigates the application of HPCMP CREATE-AV Helios for download prediction. In particular the application of the automated runtime strand mesh generation that is a new feature of the mStrand solver in Helios is investigated and compared to results obtained with the unstructured FUN3D and structured curvilinear OVERFLOW solvers that have been used for download calculations in the past. Results are presented for the JVX model-test which includes both isolated rotor calculations as well as rotor/wing interactions.
机译：旋翼飞机下载是悬停车辆设计的重要设计考虑因素。高保真计算流体动力学（CFD）的下载预测是计算和在直升机机身上的不稳定凹槽流脱落的耗时耗时，挑战CFD能够正确预测阻力的能力。本文调查了HPCMP Create-AV Helios在下载预测中的应用。特别地，研究了Helios中Mstrand解算器的新特征的自动运行时间链网格的应用，并与用非结构化的Fun3D和结构化的曲线溢出溶剂获得的结果进行了比较，这些曲线溢出溶解于过去的下载计算。提出了JVX模型测试的结果，包括隔离转子计算以及转子/翼交互。

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