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

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Equations for Induced Velocities Induced Velocities (Biot-Savart Law) Influence Coefficients All equations from Schmitz’ thesis © 2008 GE All rights reserved. 14
Computation of Induced Velocities • Total storage requirement – (6 influence coefficients) X (nbf boundary faces) X (jx polylines) – For 100,000 boundary faces, 40 polylines 100 MB storage – Typically represents about 20% additional storage for solver • Each processor needs only to compute influence coefficients, induced velocities just for its boundary faces – Naturally parallel ! – Storage is distributed across processors © 2008 GE All rights reserved. 15
Page 1 and 2: 2008 International ANSYS Conference
Page 3 and 4: Hybrid CFD for Wind Turbine Aero
Page 5 and 6: Hybrid CFD (cont’d) • Hybrid Na
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: Induced Velocities • The induced
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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