mathias
Forum Replies Created
-
AuthorPosts
-
mathiasKeymaster
A good start is the user guide and our spring school. The next starts in March 4 2024 in Heidelberg. Best Mathias
November 6, 2023 at 10:53 am in reply to: 3D pipe with a 90° elbow simulation considering thickness #7887mathiasKeymasterDear Ali,
we connot give support for you here by means of the forum. Consider participatong in our next spring school, a common project and an OpenLB consortium membership.
Best
MathiasmathiasKeymasterinfo(a)openlb.net
mathiasKeymasterThis code is no longer supported, you may find a similar approach in the new implentation. To get mire support, consider to participate in our next spring school.
mathiasKeymasterI am happy to incude a setup as example in the next release if someone sends me one..
mathiasKeymasterDear Jiahuilli,
we dont have and also in the literature there are crucial gaps which need to be closed first. We have established an OpenLB Consortium https://www.openlb.net/consortium/ to speed up such developments. If you are interested in it, please let us know.
Best
MathiasmathiasKeymasterThe particle code currectly does not supported GPUs. Join the team and contribute to acceparate the refacturing or support us bymeans of a membership of the OpenLB consortium.
mathiasKeymasterDear Greenbee,
using HLBM a refill approach is not needed.
Best
MathiasmathiasKeymasterDear Jijo,
there are a couple of common publication of Albert Mink and myself, see https://scholar.google.com/citations?user=uDIeQOQAAAAJ&hl=en . There models are all implemented in OpenLB.
Best
MathiasmathiasKeymasterHave a look at the backstep example. It is showcased there
mathiasKeymasterDear garcfd,
there might be a bug with the right scaling. You need to scale it to lattice units, which is sometime the problem. Our OpenLB implementation is working fine and is validated.
Best
MathiasAugust 2, 2023 at 3:57 pm in reply to: Implementing compressible flow using improved density method #7689mathiasKeymasterThe topic sound interesting and your first step promising. For the coupling you could look in the OpenLB example section “thermal”. There, a coupled model is used, ADE + NSE with a coupling approach based on Boussinesq-approximation. It should go similar to it.. You can keep me up to date on it by email, it would be good to share your results with then OpenLB community..
Best
MathiasmathiasKeymasterDear Alex,
your simulation has diverged. I see that form the line
[LatticeStatistics] step=306000; t=10.2; uMax=0.01; avEnergy=-nan; avRho=-nan
with the “nan”.You should checkout the last data output and look for a possible cause of the instablity. It may originate from a boundary or the bulk. If the source is the bulk, refine your mesh or increase the smago constant and if the source is the boundary extending the inflow or outflow region or intruducing a fringes might be an option.
Best
MathiasmathiasKeymasterDear Yuji,
that still needs to be done and it is on our roadmap. How long it takes depends on future projects which we are hoping to get..
Best
MathiasmathiasKeymasterHi Yuji,
as in the spring school example cavity2d with the higher Reynolds number, you need to choose a finer resolution for stability. The stability condition is as indicated in the book of Krüger et al.
Best
Mathias -
AuthorPosts