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totalPressure Inlet boundary condition

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Old   April 16, 2020, 06:37
Default totalPressure Inlet boundary condition
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LouisDS
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Dear OpenFOAM users,

Situation sketch: I am modelling a ship propeller in a canal. The ship is under bullard pull condition, so the inlet velocity has to be equal to 0 m/s. The inlet is far upstream of the propeller and as a consequence it doesn't feel any influence of the propeller. This means the pressure close to inlet has to be equal to the ambient pressure ( p = 0)

I am using the totalPressure boundary condition and I have put p0 at a value equal to zero. For U, I am using the pressureInletVelocity (uniform (0 0 0)) boundary condition. My goal is to get the ambient pressure at the inlet and an inlet velocity equal to 0 m/s.

However, with this BC combination and by looking at my results, the totalpressure is not zero at the inlet boundary and the velocity is also not equal to zero.

Is there any way to make both the pressure and the velocity equal to zero at the inlet? I have tried fixedValue for both U an p, but this also does not work.

Thanks in advance and kind regards,

Louis
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Last edited by loewieke53; April 17, 2020 at 15:02.
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