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Kutta Condition

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Old   July 14, 2003, 02:23
Default Kutta Condition
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saba
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Hi Anyone may tell me abt Kutta Condition in CFD. Thnx
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Old   July 15, 2003, 05:08
Default Re: Kutta Condition
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hasan
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it means that the difference pressure at two sides in TE should be zero!
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Old   July 17, 2003, 05:48
Default Re: Kutta Condition
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saba
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Do u mean pressure side and suction side? Trailing edge is a line not a face so how it is possible to have two sides?
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Old   July 17, 2003, 09:49
Default Re: Kutta Condition
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Axel Rohde
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If I remember correctly, the Kutta condition states that the rearward stagnation point on an airfoil must coincide with its trailing edge, which is dictated by the action of viscosity. Without viscosity, you could not produce any lift, and the velocity and pressure gradients around the trailing edge would be directly proportional to its 'sharpness'. In potential flow solvers, which lack viscosity, the Kutta condition needs to be imposed by adding just the right amount of circulation to the solution. In Euler and Navier-Stokes solutions, the Kutta condition is automatically satisfied due to the presence of numerical or physical viscosity.
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