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February 21, 2015, 07:06 |
particle separation efficiency
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#1 |
New Member
afsaneh
Join Date: Feb 2015
Posts: 12
Rep Power: 11 |
hello
i study on simulation particle tracking in a hydrocyclone to predict particle separation efficiency. in my system particles are exist in water with 2% volume fraction. i found some method for simulation: 1)first run my fluid simulation without solid (K-epsilon viscous model) then run DPM 2) run eulerian and DPM multiphase model both 3) run mixture and granular multiphase model with this regrade, i want to now for my case (2% solid) which method is better? i have one more question: when i choose 1 or 0.1 or 0.01 step size with 1000 iteration i face AVG problem for k or epsilon but if i choose 0.001 step size with 1000, i have no problem in fact it runs just for 1 s flow time!! why this problem occurs ? i really appreciate you if you can help me |
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