Implementation of a Hybrid Navier-Stokes/Vortex Panel Method for ...

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Full Domain CFD Outlet 50 m Inlet © 2008 GE All rights reserved. 4
Hybrid CFD (cont’d) • Hybrid Navier-Stokes/Vortex Panel method proposed by Schmitz, Chattot (UC Davis) looks very promising – Small Navier-Stokes region (~1 - 5 M nodes) around the blade computes near field – Vortex Panel method computes far field using Biot-Savart law • Effect of blade on far field represented by lifting line, helicoidal paths from prescribed wake Small Navier- Stokes domain Prescribed wake shape © 2008 GE All rights reserved. 5
Page 1 and 2: 2008 International ANSYS Conference
Page 3: Hybrid CFD for Wind Turbine Aero
Page 7 and 8: Goals for Hybrid CFD for Wind Turbi
Page 9 and 10: User Fortran Routines CFX provides
Page 11 and 12: Computing Circulation in CFX • Th
Page 13 and 14: Induced Velocities • The induced
Page 15 and 16: Computation of Induced Velocities
Page 17 and 18: Mesh Generation • The blade geome
Page 19 and 20: Generation of the polylines Screen
Page 21 and 22: NREL Validation Case • National R
Page 23 and 24: Sensitivity Study • Sensitivity s
Page 25 and 26: Future Work • Hybrid methodology
Page 27: Impact Hybrid CFD - Represents a un

Implementation of a Hybrid Navier-Stokes/Vortex Panel Method for ...

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