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simpleFoam with pumped outlet, will this work? |
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March 12, 2013, 21:41 |
simpleFoam with pumped outlet, will this work?
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#1 |
New Member
Debb
Join Date: Sep 2011
Location: Toronto, Canada
Posts: 20
Rep Power: 14 |
I am trying to run a basic simulation using simpleFoam where water flows into a tank and is "sucked out" a vertical pipe that starts just above the floor of the tank and is attached to a pump above the tank
I am specifying inlet velocity, and a pressure and velocity at the base of the vertical pipe (within the tank), and leaving the pressure at the actual outlet of the pipe (which terminates above the tank) as zeroGradient, I am also specifying a pRef value for a cell at the base of the tank, my pRefValue is the water column at said cell. I'm getting semi-believable results, and I'm wondering if this is just a fluke or if I'm doing this right. good karma to anyone who can help |
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March 13, 2013, 02:50 |
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#2 |
Senior Member
HECKMANN Frédéric
Join Date: Jul 2010
Posts: 249
Rep Power: 16 |
If you post your case it would be much easier for us to help you. The mistakes are often in the details
You can attach a zip file to your answer or share a link (dropbox, ...) |
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March 13, 2013, 09:10 |
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#3 |
New Member
Debb
Join Date: Sep 2011
Location: Toronto, Canada
Posts: 20
Rep Power: 14 |
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March 20, 2013, 10:46 |
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#4 |
New Member
Debb
Join Date: Sep 2011
Location: Toronto, Canada
Posts: 20
Rep Power: 14 |
I ended up finding some major issues with my mesh, which have now been corrected.
I'm still having issues with my boundary conditions. Water is entering the tank from the large horizontal pipe and would be drawn out from the vertical pipe in the corner of the tank (this is a pump suction line). my BCs are as follows: U: inlet fixedValue uniform (10.5 0 0) outlet pressureInletOutletVelocity uniform (0 0 1) walls fixedValue uniform (0 0 0) P: inlet zeroGradient outlet totalPressure uniform 0 With this I get a "believable" flow entering the tank but the flow wont go up through the outlet pipe. I am specifying the face of the top of the outlet pipe as my outlet. |
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