Jaewon Lee, Sejong Oh, Kwanjung Yee/Sanghun Kim and Dong-Ho Lee
International Journal of Aeronautical and Space Sicences, vol. 8, no. 1, pp.1-19, 2007

Abstract : As a first step toward a complete CFD-CSD coupling for helicopter rotor load analysis, the present study attempts to loosely couple a CFD code with a source-double panel method. The far-field wake effects were calculated by a time-marching free vortex wake method and were implemented into the CFD module via field velocity approach. Unlike the lifting line method, the air loads correction process is not trivial for the source-doublet panel method. The air loads correction process between the source-doublet method and CFD is newly suggested in this work and the computation results are validated against available data for well-known hovering flight conditions.

Keyword : Helicopter Rotor, Field Velocity Approach, Panel Method, CFD