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getting too high aerodynamics coefficients for NACA747A315 |
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#1 |
New Member
Prashant Singh
Join Date: Apr 2020
Posts: 3
Rep Power: 6 ![]() |
Please help...
I used ICEMCFD for geometry creation and meshing of NACA747A315 with 120 mm chord length. The model was simulated using Fluent with inlet air velocity 75 m/s and 10 degree AOA. But the lift and drag coefficients came to be very high ( 780 and 65 respectively). Please refer the attached screenshots. |
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#2 |
Senior Member
duri
Join Date: May 2010
Posts: 245
Rep Power: 17 ![]() |
User correct reference values for coefficient calculation.
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#3 |
New Member
Prashant Singh
Join Date: Apr 2020
Posts: 3
Rep Power: 6 ![]() |
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#4 |
Senior Member
duri
Join Date: May 2010
Posts: 245
Rep Power: 17 ![]() |
Can you put the screen shot of reference value panel
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#5 |
New Member
Prashant Singh
Join Date: Apr 2020
Posts: 3
Rep Power: 6 ![]() |
here is the screenshot of reference values.
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#6 |
Senior Member
duri
Join Date: May 2010
Posts: 245
Rep Power: 17 ![]() |
Reference values are correct. It means the forces are too high if the convergence and velocity field is fine then some thing could be wrong in units or mesh scaling.
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Tags |
fluent, icemcfd, lift and drag calculation |
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