mathias
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SuperLatticePhysDrag3D computes the drag coefficient. Best Mathias
Dear Alina,rnrnsome years ago we simulated the flow around a falling ball (cf. http://optilb.org/openlb/others 3d falling ball). We got good results for Re=10,100,1000 and 5000 with D3Q19 BGK-Boltzmann model and also for Re=10000 and 100000 with D3Q19 Smago BGK-Boltzmann model.rnrnMaybe your boundary conditions are not right or your resulotion is not fine enough.rnrnBestrnMathias
Dear Alina,rnrnyou have chosen CharL=0.2m, CharU=0.01m/s and CharNu=8.9e-07 m^2/s in the Converter. Thus, you get a Re=2.247.19. Your Re=10.000 does not enter the code anywhere.rnrnTo get stable results you need to choose much smaller grids and time steps or you can use a turbulent model.rnrnBestrnMathias
Hi,rnrnyou can look for publications of Li-Shi Lou https://www.odu.edu/directory/people/l/lluo . rnrnBestrnMathias
Hi,rnrnOpenLB is for sure a good choice using many cores. I am running simulations with more then 2000 cores and the parallel performance is great.rnrnBestrnMathias
Hi Alina,rnrnso you found a solution?rnrnBestrnMathias
Hi Ivan,rnrn1/ For details on the “”Random”” function, please, check out the source code http://optilb.com/DoxyGen/html/d8/d3a/classolb_1_1AnalyticalRandom1D.html rnrn2/ No, 0.98 is not related to gravity. I guess it comes from a benchmark paper.rnrnBestrnMathias
Hi jackyko,rnrnWe do not have a GPU version in OpenLB. However, OpenLB performs excellent using MPI on cluster machines of hundreds or thousends of CPUs. Have a look! rnrnBestrnMathias
Dear Vijay,rnrnOpenLB dont have a non-uniform mesh implementation right now.rnrnBestrnMathias
Dear Ameen,rnrnSo far we have only powerLaw implemented. Since OpenLb is programmed in a very gernic style, it should be possible to extent it.rnrnI would start with a single phase implementation in a channel first. Look at the “”poiseuille2d”” examples and start changing them. rnrnWe will have a spring school in March which could help you to get started.rnrnFurther, feel free to cantact me at info@openlb.net .rnrnBestrnMathias
Hi,rnrnYou could implement it in OpenLB. A simple version of a FreeSurface method should not be so complicated to be implemented.But to get physical accurate results in general can be very tricky. There are PhD thesises on it. rnrnBestrnMathias
Dear Alejandro,rnrn There are several issues to be discussed for that topic. Further, we will have a spring school in March 2017 for LBM and OpenLB, where we can help to get started. Please contact me to proceed.rnrnBestrnMathias
Dear Alejandro,rnrn There are several issues to be discussed for that topic. Further, we will have a spring school in March 2017 for LBM and OpenLB, where we can help to get started. Please contact me to proceed.rnrnBestrnMathias
Dear Alejandro,rnrn There are several issues to be discussed for that topic. Further, we will have a spring school in March 2017 for LBM and OpenLB, where we can help to get started. Please contact me to proceed.rnrnBestrnMathias
Dear Alejandro,rnrn There are several issues to be discussed for that topic. Further, we will have a spring school in March 2017 for LBM and OpenLB, where we can help to get started. Please contact me to proceed.rnrnBestrnMathias