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#1 |
New Member
Join Date: Mar 2017
Posts: 3
Rep Power: 9 ![]() |
Greetings Foamers and happy new year
Please I need help on how to set a boundary condition which are singular vortices located at the bottom of my 2D simulation? . I'm thinking about an angular velocity multiplied by a radius of these vortices? is that easy to implement?. Thank you happy new 2018 ![]() Last edited by cccm; January 14, 2018 at 15:16. |
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#2 |
Senior Member
Uwe Pilz
Join Date: Feb 2017
Location: Leipzig, Germany
Posts: 744
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you may set the boundaries as a moving wall, similar to the lid driven cavity example. You have to set a tangential velocity at each plane. Please keep in mind: The velocity in the volume will me much lower than the one of the boundary, because the flow is mediated per friction only. You may look at the lid driven cavity for this aspect.
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Uwe Pilz -- Die der Hauptbewegung überlagerte Schwankungsbewegung ist in ihren Einzelheiten so hoffnungslos kompliziert, daß ihre theoretische Berechnung aussichtslos erscheint. (Hermann Schlichting, 1950) |
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#3 |
Senior Member
Santiago Lopez Castano
Join Date: Nov 2012
Posts: 354
Rep Power: 15 ![]() |
Fluid Turbulence in 2D? Can you be a bit more specific on what you seek to do?
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Tags |
turbulence, vortex, vortices |
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