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Simulations at different AoA

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Old   January 20, 2010, 08:39
Default Simulations at different AoA
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Hi,

I am trying to find out the change of lift coefficient with respect to AoA of an airfoil.

To do this I run the same case but at different Aoa in fluent. All cases start from scratch and iterate till converge.

Today I heard from my friend that I could have run a single case till converge, change the AoA, then continue running that case till converge for new AoA. Will the results be identical and more accurate? This will greatly save a huge amount of time.

Thank you.
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Old   January 22, 2010, 10:10
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anyone has any idea regarding this?
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Old   January 22, 2010, 12:19
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If you use the steady flow solver yeah, you can in principle start from any initial solution. So a wise choice will be to do the calculation for say 0 degree, wait until this case converge.

Start a new case with a different AOA say 2 degree but use as initial solution the solution from 0 degree.

For 4 you will use the solution for 2 as initial solution and so on ...

Do
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Old   January 23, 2010, 11:36
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thank you very much...yes im using steady flow solver...thanks for the confirmation.
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