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August 28, 2015, 05:25 |
Specify velocity components at outlet
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#1 |
New Member
Join Date: Apr 2013
Posts: 6
Rep Power: 13 |
Hey Guys,
I am currently running flow through a geometry with a pressure inlet (non-zero values varying in time) and setting the outlet pressure at zero. When I sample the total pressure throughout time during the simulation, I get a slightly non-zero pressure value, which is strange because I impose an outlet boundary condition of zero. Since I know my profile is parabolic at the outlet (and almost Poiseuille-like, resulting in x,y velocity components of zero), I would like to specify these non-axial velocity components (x,y) as zero - I think this may help in convergence and also help rectify the issue with pressure (it's just a thought). Do any of you know if there is a way to impose this type of boundary condition in Fluent? I am using ANSYS 16.1. Any help would be greatly appreciated. Thanks! |
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August 28, 2015, 11:58 |
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#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,675
Rep Power: 66 |
You can impose a velocity profile at the outlet by using a "velocity inlet" as your outlet boundary condition. But you would have to specify the velocity entirely (x,y, & z velocity). I don't think you can specify only two velocity components.
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