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From: | Owen Hickey |
Subject: | Re: [ESPResSo-users] terminal velocity for LB fluid |
Date: | Fri, 27 Sep 2013 09:12:05 +0200 |
When the force density ext_force $fdragx $fdragy $fdragz is removed from the fluid, the particle accelerates beyond the expected terminal velocity of 0.1, even beyond the allowance for effective friction having a lower value lower than the bare friction (Alrich & Dunweg 1999).Hi all,I am using the the sample script lb_fluid_coupling_gpu.tcl
I have modified the script to print the velocity each time the script records for the average. I have also increased the integrations to 500 steps per recording.
Why is a terminal velocity not achieved?
Thanks,
--Vincent Ustach--Vincent Ustach
University of California, Davis
On Thu, Sep 26, 2013 at 8:11 PM, Vincent Ustach <address@hidden> wrote:When the force density ext_force $fdragx $fdragy $fdragz is removed from the fluid, the particle accelerates beyond the expected terminal velocity of 0.1, even beyond the allowance for effective friction having a lower value lower than the bare friction (Alrich & Dunweg 1999).Hi all,I am using the the sample script lb_fluid_coupling_gpu.tcl
I have modified the script to print the velocity each time the script records for the average. I have also increased the integrations to 500 steps per recording.
Why is a terminal velocity not achieved?
Thanks,--Vincent Ustach
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