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

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GE46 Validation Case<br />

<strong>Navier</strong>-<strong>Stokes</strong> domain<br />

• This was the first GE blade run<br />

using the hybrid CFD method<br />

• Comparisons made to full-domain<br />

CFD, other analytical methods<br />

– Power predictions match well <strong>for</strong><br />

attached flow cases<br />

Power Coefficient<br />

Tip Speed Ratio<br />

Pressure Coefficient (PC) Comparison<br />

CPU time (min)<br />

400<br />

350<br />

300<br />

250<br />

200<br />

150<br />

100<br />

50<br />

0 Solver time [min]<br />

Full CFD 366<br />

<strong>Hybrid</strong> CFD<br />

46.9<br />

Run Time Comparison<br />

(equal # iterations)<br />

Computed Mach Numbers (TSR=8)<br />

© 2008 GE All rights reserved. 22

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