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October 10, 2013, 03:03 |
VOF reflection from outlet boundary
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#1 |
New Member
Derek Foran
Join Date: Jul 2013
Posts: 10
Rep Power: 12 |
Hi,
I am performing a basic VOF open channel simulation in which water is flowing around a structure. My model seems to be working correctly but I am having trouble reaching a steady state condition in terms of the velocity. The velocity seems to be oscillating over time at my test point and I think this is due to a wave reflecting from the outlet boundary. Is there a way of using non-reflecting boundaries with the VOF open channel model? Is there possible another way of avoiding these oscillations of velocity and attain steady state quicker? Any tips would be appreciated, thanks. Derek |
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October 10, 2013, 03:22 |
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#2 |
New Member
Join Date: Sep 2013
Location: Shanghai China
Posts: 6
Rep Power: 12 |
extend your computational domain to which makes the outlet is far away from your test point, it can avoid this oscillation around outlet to influence the domain that you care.
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October 10, 2013, 13:22 |
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#3 |
New Member
Derek Foran
Join Date: Jul 2013
Posts: 10
Rep Power: 12 |
I will try that, thanks for the tip!
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vof; nrbc |
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