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December 6, 2010, 18:51 |
Question: BC openFOAM vs. FLUENT
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#1 |
New Member
OEHMU
Join Date: Dec 2010
Posts: 5
Rep Power: 16 |
Hi,
I would like to know if it is possible to I implement a boundary condition which is pressure outlet with a target mass flow rate (name in FLUENT) in OpenFOAM. I want to fix the mass flow rate at an outlet. Im modeling a steady flow with a k-e model in a river and I need to emulate the same conditions that in FLUENT in order to compare the results. Thanks in advance |
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December 7, 2010, 05:02 |
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#2 |
Senior Member
Markus Rehm
Join Date: Mar 2009
Location: Erlangen (Germany)
Posts: 184
Rep Power: 17 |
Hello,
check if pressureDirectedInletOutletVelocity is appropriate for you: http://foam.sourceforge.net/doc/Doxy...209dbc1d9.html Markus |
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December 14, 2010, 17:14 |
question and tks
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#3 |
New Member
OEHMU
Join Date: Dec 2010
Posts: 5
Rep Power: 16 |
Hi Markus tks for your help.
Im setting a case of a river flow using simpleFOAM, one inlet one outlet, given the water levels. I set for the U file in 0 folder the following boundary conditions: dimensions [0 1 -1 0 0 0 0]; internalField uniform (0 0 0); boundaryField { //inlet mass_flow_inlet_4 { type flowRateInletVelocity; flowRate 6300; value uniform (0 0 0); } //outlet pressure_outlet_8 { type flowRateInletVelocity; flowRate -6300; value uniform (0 0 0); } //upperWall wall_6 { type fixedValue; value uniform (0 0 0); } //lowerWall river_bed_5 { type fixedValue; value uniform (0 0 0); } //frontAndBack ws_profile_7 { type symmetryPlane; } } I set at the pressure outlet an output discharge, my questions are: is this ok? do i need to set a boundary condition for p ? thanks in advance, |
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