mathias
Forum Replies Created
-
AuthorPosts
-
mathiasKeymaster
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
mathiasKeymasterHi,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
July 20, 2016 at 10:16 am in reply to: Implementation of Wall Function for Turbulent Flows – Doubts #2409mathiasKeymasterDear 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
mathiasKeymasterDear 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
mathiasKeymasterDear 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
mathiasKeymasterDear 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
mathiasKeymasterDear 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
mathiasKeymasterDear Mark,rnrn You can start from cylinder3d or aorta3d. In both cases an stl-file is imported. You may also start from thy venturi3d example. There it is shown how to combine geometry primetive like cones, shperes or cuboids to set up a flow domain. Currently, we do not have a free surface solver. rnrnYou may also consider to come to our spring school in march http://optilb.org/openlb/spring-school-2017 which would help you to get started.rnrnBestrnMathias
mathiasKeymasterHi,rnrn1/ Reduce to about Re=500. Make your case work with ForcedBGK.rn2/ Then, swich using a turbulent model, like Smago with a high SmagoConst. rn3/ Decrease SmagoConst.rnrnBestrnMathias
June 23, 2016 at 10:11 pm in reply to: Cannot compile the examples using “make” with Cygwin (no object file) #2395mathiasKeymasterHi,rnrnreplacing “”gettimeofday”” by “”this->gettimeofday”” should work.rnrnBestrnMathias
mathiasKeymasterWhat did you change “”It should be noted that the smagoConstIsAt attribut have been defined as const static int (before was const static int).””?
mathiasKeymasterHi,rnrnthe data is in the Cell. As I rememeber, there is a functor (functors/turbulent3d.*) that updates the constant in each cell. There will be a paper and a PhD thesis hopefully soon available on this topic by Patrick Nathan. rnrnBestrnMathias
mathiasKeymasterDid you compile in the mode “”precompiled”” or “”generic””. It should be “”generic””. See documenation. Best Mathias
June 14, 2016 at 6:49 pm in reply to: Cannot compile the examples using “make” with Cygwin (no object file) #2379mathiasKeymasterIt seems a windows/unix problem. I found this put in the beginning “”#define _BSD_SOURCE””. See also http://stackoverflow.com/questions/36901803/gettimeofday-not-declared-in-this-scope-cygwin .
June 14, 2016 at 5:52 pm in reply to: Cannot compile the examples using “make” with Cygwin (no object file) #2377mathiasKeymasterGoogeling I found that someone solved it by putting “”#include <sys/time.h>”” also in the “”timer.hh”” file. Best Mathiasrn
-
AuthorPosts