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interfoam problem for airfoil above water

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Old   February 10, 2016, 12:11
Default interfoam problem for airfoil above water
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esmaeil
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hi
I want to validate Cl for an airfoil above free surface of water.
Im using interfoam solver to simulate multiphase flow. in my case airfoil is in air phase so I expect that the lift coefficient will be near lift coefficient of airfoil in free stream air. but results was extremely different and the lift coefficient is near lift coefficint of a foil in water...
when I run the case that is far from the free surface and actually simulation is single phase (air) the resulats are near the article.
I appreciate any suggestion or advice.
thank you
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