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Old   May 30, 2010, 00:23
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Eric
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I am using DPM to see how long does the 1000 massless particles take to travel across my mixing tank. I am using unsteady particle tracking and track with fluid flow time step. I inject particle once at time 0, and I set max. number of steps to a very large number since I don't know how long it takes the particle to escape. However, when I start the simulation, once the at the first time step all the particles left already. That doesn't make sense, unless the particles travel the entire tank in 0.05s. I expect it should be around 300s. Can someone give me some advice?

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Eric
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Old   May 30, 2010, 12:42
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ali
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I think calculate particle lag time to have an idea of time
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Old   January 27, 2011, 12:27
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Quote:
Originally Posted by Eric1 View Post
I am using DPM to see how long does the 1000 massless particles take to travel across my mixing tank. I am using unsteady particle tracking and track with fluid flow time step. I inject particle once at time 0, and I set max. number of steps to a very large number since I don't know how long it takes the particle to escape. However, when I start the simulation, once the at the first time step all the particles left already. That doesn't make sense, unless the particles travel the entire tank in 0.05s. I expect it should be around 300s. Can someone give me some advice?

Thanks,
Eric
Hello Eric,

I wonder if you have solved this problem. I run into the same problem now.

Guangwei
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