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I'm interested in scalar transport for solving such problem,can you help me about this or send a case about this for me??? |
Hi,
Do not hesitate to ask if it's not clear. Just preparing a case is not helpful I think, because it's really case dependent. Bests, |
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thanks a lot, i want to modeling effect of nanoparticles in water,can you help me??? |
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sure; using Eulerian method seems reasonable for your purpose if it matches with your goal; nevertheless, selecting Lagrangian procedure has few issues specially in nano particles; so the only thing you have to do is to activate a scalar equation, set proper diffusivity and UDS BC; isn't it clear or face a trouble? Bests, |
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but isn`t clear, i don`t know proper diffusivity and BC for this problem, can you explain this??? |
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and you have to set for FLUENT which has a dimension of (kg/m.s), but note that the is the base fluid density and D is diffusivity of desired substance in that fluid. About the BCs, you have 3 options to set value or gradient or write a UDF for that; you have to set appropriate BC according to your model; e.g., if you set zero gradient it means that there isn't any penetration of the UDS and if you set zero value it means that there is a sink of that UDS. Bests, |
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Thanks a lot for your answering... i have some question about your answer, should i solve this equation with continuity,momentum and energy equations and coupled with them???if yes, how can i do this work??? and can i use this equation in common model or i should use DPM or other model??? |
Hi,
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Bests, |
loop over particles
Hi guys,
I need to find electromagnetic force induced by other particles over the tracked particle. Can I loop over particles while I am using DEFINE_DPM_BODY_FORCE ??! I tried "loop(p,I->p)", but it did not work. I also used "begin_particle_cell_loop" macro, it did not work either. Please let me know if you can help me. Thanks Shahryar. |
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You cannot make a loop over particles in this macro because the particles are tracked sequentially. Bests, |
Thanks for the reply Amir,
What about the macro "begin_particle_cell_loop"? I tried that one. I was able to compile it but it gives me access_violation error as I run the DPM. Do you have any idea how to use this macro in define DPM body force? Thanks. |
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Bests, |
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