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[ESPResSo-users] Tube Flow Lattice Boltzmann
From: |
Wolfgang Riefler |
Subject: |
[ESPResSo-users] Tube Flow Lattice Boltzmann |
Date: |
Thu, 18 Apr 2013 14:45:55 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130105 Thunderbird/17.0.2 |
Hello all,
I am trying to simulate a flow within a cylindrical tube, using the
Lattice Boltzmann method.
I am using the following script:
setmd box_l 54 18 18
setmd time_step 0.005
setmd skin 0.1
lbfluid agrid 1 dens 1 visc 10 tau 0.005 ext_force 0.04
thermostat lb 0.0
lbboundary cylinder center 27.0 9.0 9.0 axis 1.0 0.0 0.0 radius 8.26
length 27 direction -1
integrate x
According to the user guide this should define a cylindircal surface
with symmetry axis parallel to the x-axis, where all nodes outside the
cylinder are defined as boundary nodes.
However the fluid stays inert. If I change the direction to 1, I can see
the fluid flow outside the cylinder in x-direction as expected.
What am I doing wrong?
Thanks in advance,
Wolfgang
- [ESPResSo-users] Tube Flow Lattice Boltzmann,
Wolfgang Riefler <=