Selection of relaxation time tau_f in LBM_3D_SinglePhase_Solver.py #28
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How should tau_f be selected in permeability modelling of porous media? |
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Comment out code means it is out of date, you can delete them
Sam Ultraman ***@***.***> 于 2024年7月5日周五 上午4:44写道：
… How should tau_f be selected in permeability modelling of porous media?
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谢谢老师！我看见您在lbm_solver_3d_sparse.py使用的tau_f=3.0niu+0.5 |
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这个需要和你使用的MRT的M矩阵匹配，所以不同文章的会有些不同
…On Fri, 5 Jul 2024 at 09:45, xiwei gao ***@***.***> wrote:
谢谢老师！我看见您在lbm_solver_3d_sparse.py使用的tau_f=3.0
*niu+0.5 image.png (view on web)
<https://github.com/yjhp1016/taichi_LBM3D/assets/45071471/41056e03-fe2d-41e4-9f79-6c4d97de6430>
有些文章在三维情况也使用的tau_f=3.0*
niu+0.5，我们应该在什么条件下选择tau_f=niu/3+0.5，什么条件下选择tau_f=3.0*niu+0.5呢
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谢谢老师 |
Hello, Professor!
I have encountered a problem with the example you provided in img_ftb1131.txt. The file LBM_3D_SinglePhase_Solver.py provides two tau_f.
when I use the
self.tau_f=3.0*self.niu+0.5The permeability results are as follows：
when I use the
self.tau_f=self.niu/3.0+0.5The permeability results are as follows：
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