| 旋翼桨叶绕流Euler方程数值模拟 |
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| 引用本文： | 曹义华,康凯.旋翼桨叶绕流Euler方程数值模拟[J].直升机技术,1998(2). |
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| 作者姓名： | 曹义华 康凯 |
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| 作者单位： | 北京航空航天大学，北京航空航天大学 北京 100083，北京 100083 |
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| 摘 要： | 本研究应用格心格式有限体积法求解欧拉方程,模拟绕旋翼浆叶的流动。旋翼尾流的作用通过自由尾流分析来求解局部的诱导下洗速度以修正翼型攻角。选择O—H型式生成弦向和展向网格。通过算例计算为进一步寻求有效的Euler或NS方程数值解积累了经验。
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| 关 键 词： | 旋翼流场 欧拉方程 有限体积方法 龙格—库塔格式 |
NUMERICAL SIMULATION OF THE FLOWFIELD OF A HOVERING ROTOR BLADE USING EULER EQUATIONS |
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| Authors: | Cao Yihua Kang Kai |
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| Abstract: | A finite volume approach is applied to solve Euler equations for simulating the flowfiekl of a hovering rotor blade.Rotor wake effects are modeled in the form of a correction applied to the angle of attack along the blades.This correction is obtained by computing the local induced downwash with free wake analysis.O-H topology was chosen for the grid generation in chord-wise and spanwise directions.By means of the sample calculations the experience for exploring efficient numerical solutions of Euler/NS Equations are accumulated. |
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| Keywords: | Rotor flowfield Euler equations finite volume methods Runge-Kutta timestepping schemes |
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