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July 17, 2015, 12:01 |
DPM total mass flow rate
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#1 |
New Member
Yang
Join Date: Jun 2015
Posts: 25
Rep Power: 11 |
Can someone explain how to specify total flow rate out of a spray? From various sources and spray tutorials, I'm aware of total mass flow rate, parcel mass flow rate, and particle mass flow rate. The main problem is I don't know which feature in FLUENT applies to which flow rate.
I tried simulation specified below and, basically, the flow rate I want is 65 times the flow rate from the flux report. My pure-diesel <l> spray application expels 6.5e-4 kg/s out the nozzle, which I specify in "total flow rate" in surface injection settings in DPM. I use: coupled solver diesel density of 849 kg/m^3 in materials, but reference density of the fuel outlet shows 26 kg/m^3 (why?) velocity BC with velocity calculated from row*A*v = 6.5e-4 kg/s nonpremixed combustion model with fuel (diesel) mass fraction of 1 also tried mass flow BC, but initial velocity that FLUENT calculates is too high |
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dpm, spray, total mass flow rate |
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