Particles deflected by surface defined as stick
5 Attachment(s)
Dear all,
I'd like to add an incident to this thread as it seems to be a similar problem. The cases concerned introduce parcels into a thermal plume. This flow "hits" a bend surface. Different aerodynamic diameters have been used, i.e. 1e-4, 1e-5 and 1e-6. I used paraview to animate the flow of the parcels and it seems that they are deflected from the wall, see (10 and 50 MB file size; red particles are active = flowing, blue are stick) https://box.cern.ch/public.php?servi...1933015dd82303 and https://box.cern.ch/public.php?servi...519d51c73f7e33 This surface is definitely set to stick, Code:
{ Does anybody of you have an idea what is (not) going on there? Is a certain mesh resolution necessary depending on a parcel size? Could this be a scheme or solution problem (both attached)? OpenFOAM version is 2.2.x-5cc33a231685. Solver used is fireFoam version 70b3e6a20900683fba46801c31725a9197954ecb. Thanks in advance for any kind of help. Cheers, Michael |
hello, my test simulation also shows that the partiles will stick to the all and will flow along the wall for a long distance. beside, the gravity doesn't act on the particles. is there any suggestion to solve the problems?
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Yust an idea: did you make shure that your maxInteractionDistance is larger than your max. particle diameter?
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Yes, I think so, now the gravity act on the particles.
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