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

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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]
Publisher
AMER SOC MECHANICAL ENG
Issue Date
2010-08
Language
English
Article Type
Article
Keywords

HOVER

Citation

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, v.132, no.8

ISSN
0098-2202
DOI
10.1115/1.4002110
URI
http://hdl.handle.net/10203/95204
Appears in Collection
AE-Journal Papers(저널논문)
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