Numerical investigation of full helicopter with and without the ground effect
Numerical investigation of full helicopter with and without the ground effect
复制标题
考虑和不考虑地面效应的全直升机数值研究
DOI：
10.1016/j.ast.2022.107401
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发表时间：
2022
影响因子：
5.6
通讯作者：
A.S.F. Silva P
中科院分区：
文献类型：
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作者：
A.S.F. Silva P
本文采用高阶单调上游中心守恒律格式（MUSCL）格心有限体积法，采用多参考系（MRF）技术的简化概念，对直升机全机PSP悬停飞行的气动性能进行了研究。在叶尖马赫数为0.585时，得到了两个地面距离和几个总距俯仰角的预测值。计算了地效和地效两种情况下的压力分布、推力、扭矩和涡系积分，并与实验数据进行了比较。
In the present work, the aerodynamic performance of the full helicopter PSP in hover flight is investigated using a simplified concept of multiple reference frame (MRF) technique in the context of high-order Monotone Upstream Centred Scheme for Conservation Laws (MUSCL) cell-centred finite volume method. The predictions were obtained for two ground distances and several collective pitch angle at tip Mach number of 0.585. The calculations were made for both out-of-ground-effect (OGE) and in-ground-effect (IGE) cases and compared with experimental data in terms of pressure distribution and integrated thrust and torque and vortex system.