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FLUENT DPM unsteady particle time step VS injection time step |
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May 19, 2016, 12:47 |
FLUENT DPM unsteady particle time step VS injection time step
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Join Date: May 2011
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The user manual says " You can either Inject Particles at Particle Time step or at the flow time step."
Is it possible to setup a user defined injection time step in unsteady tracking, which is different from the particle tracking time step? For example, I want to study particles in its mean free path without any collisions. I know the particle flow rate, say 1E7 particles injected per second. And I know the time corresponding to its mean free path say 1E-10s. If I set the particle tracking time step is 1E-10s, then because of "injection time step=tracking time step", then I injected 1E-10s * 1E7/s =1E-3 particles. This is unphysical! The particle number should be integer, at least 1. Who could provide some suggestion in the above scenario? Thank you. WW |
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