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From: | Harmanjit Singh |
Subject: | Re: [ESPResSo-devel] lbboundary and slitpore constraint |
Date: | Thu, 12 Feb 2015 17:57:07 +0530 |
What do you mean by slit pore? If you mean parallel plates, my previous answer still holds:>> Is there a way to use lb fluid in slitpore? While I tried this the simuation gave error that lbboundary does not accept the slitpore parameter.>Yes. Read the User's Guide about lbboundary wallMy suggestion to implement your boundary geometry in the C code was meant for more complicated geometries.>> Is there a way to simulate lb fluid in only specific custom defined boundaries? Like a U-tube.>Yes. You might be able to construct your channel from several cylinder boundaries. If not you would have to implement a distance function for your boundary shape in the C code.On Thu, Feb 12, 2015 at 7:33 AM, Harmanjit Singh <address@hidden> wrote:Dear all,I have been using Espresso for a month now, I need it to see slitpore as LB BOundary, which is already not accepted as a valid LB boundary. So on suggestion of Georg Rempfer, I tried changing the source codes of the files, i went through the file_1013.pdf by Alex Arnold and then changed the LB boundaries.cpp and Lb boundaries.hpp and there Tcl counterparts. I am not professional coder, but after few tries I got the program to make and make install. It gives no errors now when I passed the slitpore as parameter to the lbboundary command. however I am not really sure it worked because the velocity is always zero when viewed via lbnode.Is there something that I am missing or something more that needs to be done?Thank You and RegardsHarmanjitPS. Please let me know how and where to upload those changed files.
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