UNSTEADY AERODYNAMIC ANALYSIS OF HELICOPTER ROTOR BLADES USING DIAGONAL IMPLICIT HARMONIC BALANCE METHOD
UNSTEADY AERODYNAMIC ANALYSIS OF HELICOPTER ROTOR BLADES USING DIAGONAL IMPLICIT HARMONIC BALANCE METHOD
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基于对角隐式谐波平衡法的直升机旋翼桨叶非定常气动分析
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
J. Kwon
中科院分区：
文献类型：
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作者：
D. Im;Seongim Choi;S. Park;J. Kwon
本文采用嵌套网格对角隐式谐波平衡法分析了悬停和前飞状态下直升机旋翼桨叶的流动。在前飞等运动问题中，嵌合体网格在每一时间步上都需要与子网格和背景网格进行插值。该方法可以有效地减少网格模块的插值时间。为了验证本方法，使用Caradonna & Tung的和AH-1G转子叶片，并将结果与其他研究人员的结果和实验数据进行比较。
In this paper, diagonal implicit harmonic balance method with overset grid technique is applied to analyze helicopter rotor blade flow in hover and forward flight condition. The chimera grid need interpolation time with sub-grid and background grid in moving problem such as forward flight on every time step. Present method is available enough to reduce the grid module interpolation time. In order to demonstrate present method, Caradonna & Tung`s and AH-1G rotor blades are used and the results are compared to other researchers` result and experimental data.