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Lagrangian particles adddition to interFoam using swak4Foam |
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August 19, 2022, 04:43 |
Lagrangian particles adddition to interFoam using swak4Foam
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#1 |
New Member
Baba
Join Date: Aug 2022
Posts: 2
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Hi,
I am trying to simulate rising of bubble in a solid-liquid suspension. For the bubble-liquid interface interFoam solver is used. Particle addition is carried out by swak4Foam. But when I am running the simulations, I am getting a warning like "No entry 'dimension' in field muField". However I am able to complete the simulations. Should I do something? Please help. Thanks in advance, Baba |
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August 20, 2022, 07:34 |
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#2 | |
Assistant Moderator
Bernhard Gschaider
Join Date: Mar 2009
Posts: 4,225
Rep Power: 51 |
Quote:
No. swak turns of dimension checking for its calculations because that would complicate things for the user (for instance: half of the numeric constants people use in expressions would need to have to have dimensions added to them. Otherwise dimension checking when adding them to a field that is not dimensionless would fail). Of course that disables one of the cool (and for the novice user annoying) features of OF: dimension checking. swak4Foam assumes that the user did the dimension checking of his expressions by hand The expressionField function object allows the user to specify a dimension for the result post-calculation because sometimes it is used to "mock" the existence of a field for a boundary condition etc that checks for that dimension. Also: it is good practice to add that dimension to document "I checked the dimension: this is it". I rarely do this. But this only proofs what I always say "Just because I wrote swak4Foam doesn't mean that I use it properly"
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August 23, 2022, 01:45 |
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#3 |
New Member
Baba
Join Date: Aug 2022
Posts: 2
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Thank you very much for your response.
Sincerely, Baba |
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Tags |
interfoam bubble, lagrangian particles, swak4foam |
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