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Sunction & Oscillation boundary conditions

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Old   June 19, 2014, 05:56
Default Sunction & Oscillation boundary conditions
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Dear all,

I'm very new to the ANSYS Fluent and currently doing the simulation for the boundary layer control with flow over airfoil , hump + slot.

How do I define the slot Boundary condition for
- suction with constant mass flow rate
- oscillating case with frequency and peak velocity

So far, here are the things that I wanna discuss

- I try to use mass-flow-inlet BC and define the mass flow, but FLUENT don't allow me to input the negative mass flow for suction case

- Should I use the velocity-inlet BC and do some math to find the velocity from the mass flow rate that I need? Since it allow me to input negative velocity

- Or using the pressure-inlet BC ?

- Are there any links, manual, files related to this study please let me know so that I'll go for it.

Thank you for your reply
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