mathias
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As pointed out by Jan, OpenLB does suport particle simulations!
Dear Thomas,
very recently we have established a new way to share code: https://gitlab.com/openlb/release . Detailed support we cannot offer you within the formum. Options are: the advenaced track of the next spring school, a common project and joining the OpenLB consortium.
Please use the contact form to get in touch with the OLB administartion.
Best
MathiasWhich function are you exactly talking about.
Dear Jowhlte,
Which “the old case files” do you mean? Which “this simulation”
Best
MathiasDear Rookie,
if the Spring School doesn’t work for you, then maybe becoming a member of the consortium (https://www.openlb.net/consortium/) is an alternative option, because unfortunately I can’t provide such detailed support here.
Best regards,
MathiasDear Rookie,
if the Spring School doesn’t work for you, then maybe becoming a member of the consortium (https://www.openlb.net/consortium/) is an alternative option, because unfortunately I can’t provide such detailed support here.
Best regards,
MathiasNot really.
These question are beyond the scope of this forum. Some of them we answer at the spring school where we have a week to go into details. The next school is in March 2024.
Such approaches exists for LBM, see e.g. the once by Domikik Wilde. They are not as local as the stnadward LBM and therefore not as scalable on high perfarmance computers.
You need to part the code form the old parrticle implementation to the new one..
Yes, there are serval options for free outflow conditions they are refferred to as “concection” in OpenLB, it is du/dn = 0 as well as d\rho/dn = 0.
Best
MathiasThere can be a lot of sources for unstability (bulk, boundary, initial condoitions, ..). One criteria for bulk instabilits is considered in Krüger’s book and well be studies also at our next spring school.
The results in the picture look more like a vizualization artefact. You could check how bounce back and bouzidi bc works for this case..
A good start is to copy a similar example, rename and start changing one thing by another compiling and checking the results of every change.
Dear Srujan,
A good start intro OpenLB is our spring school. We also help you there to set up your problem. Besides, we can also help you in the framework of common project. Also consider to be a member of the consortium. Then, we could develop OpenLB in a direction which is valuable for you/your company.
1/ Seems possible, of cause it depends on your available HPC ressouces
2/ That is a difficult question to anwer here in the forum. There can be many causes of instability. There is a lecture on it in the spring school and in the Krüger book.
3/ You can define your own function (analytical functor in SI units) and use it to set any velocity.Best
Mathias