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March 26, 2020, 12:07 |
injection file for ddpm+dem
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#1 |
New Member
Chanon Bunsaksit
Join Date: Mar 2020
Posts: 3
Rep Power: 6 |
Hello
I'm tying to simulate the bubbling fluidized bed using injection by file but I don't sure how to calculate the mass flowrate for each particle. Can anybody help me? Thank you |
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March 26, 2020, 12:24 |
Mass Flow Rate
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#2 |
Senior Member
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Particle do not have a mass flow rate, only mass. The mass flow rate mentioned in the file is for the parcel. Simplest assumption is equal distribution. Since you know the number of parcels you want to inject and you also know the mass of one particle, mass flow rate is given by the ratio of total mass flow rate of discrete phase and product of number of parcels and mass of one particle, i.e.,
where is number of parcels in your injection file.
__________________
Regards, Vinerm PM to be used if and only if you do not want something to be shared publicly. PM is considered to be of the least priority. |
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March 27, 2020, 06:20 |
Mass Flow Rate
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#3 |
Senior Member
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Mass flow rate of particles has to come from the real system that you are trying to simulate using CFD. No one else can give you that value. Mass flow rate of each parcel has to be calculated using the procedure I shared in my previous post.
I'd recommend using forum instead of PM so that I could be corrected if I make a mistake and others could learn from whatever we are discussing.
__________________
Regards, Vinerm PM to be used if and only if you do not want something to be shared publicly. PM is considered to be of the least priority. |
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