Yuting |
July 23, 2019 19:56 |
Quote:
Originally Posted by Weiqiang Liu
(Post 739672)
actually, I am modeling diesel particulate filter. I've checked boundary conditions, porous media properties or operational pressure. The soot consuming rate and temperature magnitude are consistent with literature. However, I can never get that obvious filtration velocity like the author did.
I spend a lot of effort on this problem. You just told me mass source term may take an effect? Will mass source term influence velocity field?
Best regards.
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I am not in your research area. I can only propose some possibilities. If you look at the following descriptions in Fluent help, you might get some ideas. Of course, adding mass source will affect the velocity field. You can try if it works on your case. Good luck.:)
Yuting
Important: Note that if you define a mass source for a cell zone, you should also define a momentum source and, if appropriate for your model, energy and turbulence sources. If you define only a mass source, that mass enters the domain with no momentum or thermal heat. The mass will, therefore, have to be accelerated and heated by the flow and, consequently, there may be a drop in velocity or temperature. This drop may or may not be perceptible, depending on the size of the source. (Note that defining only a momentum, energy, or turbulence source is acceptable.)
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