Far-Field Boundary Condition Effects of CFD and Free-Wake Coupling Analysis for Helicopter Rotor

被引：2
|
作者：
Wie, Seong Yong [1 ]
Lee, Jae Hoon [2 ]
Kwon, Jang Hyuk [1 ]
Lee, Duck Joo [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Aerosp Engn, Taejon 305701, South Korea
[2] Aerosp Div, Taejon 305811, South Korea
来源：
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME | 2010年 / 132卷 / 08期
关键词：
aerodynamics; blades; computational fluid dynamics; helicopters; rotors; wakes; HOVER;
D O I：
10.1115/1.4002110
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Rotor aerodynamics is governed by wake geometry and strength. However, rotor wake characteristics computed by the rotor computational fluid dynamics are not clearly described due to numerical dissipation. To overcome this numerical problem, free-wake is used for wake simulation. The present free-wake describes the inboard vortices as well as the tip vortices of the blade. At each time step, the free-wake provides inflow and outflow conditions of the boundary of the Eulerian domain, and the Euler solver is used for solving the flow field near the rotor blade. Finally, the coupled method is compared with the conventional method and the experimental results. [DOI: 10.1115/1.4002110]
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页数：6
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