International Journal of Aeronautical and Space Sciences

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Loose Coupling Approach of CFD with a Free-Wake Panel Method for Rotorcraft Applications

  • Lee, Jae-Won (Department of Aerospace Engineering, Pusan National University) ;
  • Oh, Se-Jong (Department of Aerospace Engineering, Pusan National University) ;
  • Yee, Kwan-Jung (Department of Aerospace Engineering, Pusan National University) ;
  • Kim, Sang-Hun (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Lee, Dong-Ho (School of Mechanical and Aerospace Engineering, Seoul National University)
  • Published : 2007.06.30
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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.

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References

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