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Pressure, mass or velocity boundary condition? |
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October 21, 2019, 11:15 |
Pressure, mass or velocity boundary condition?
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Member
Abdullah Arslan
Join Date: Apr 2019
Posts: 94
Rep Power: 7 |
Good day,
I have inlet condition Tin 793K, Pin 1 atm, Vin 0.1 m/s and inlet size is 3.1X1mm. The mixture is multi-component and its density is 227g/m3. Corresponding mass flow rate is 7.0565E-8 kg/m3. For both velocity and mass flow rate inlet (Min) conditions, velocity profile is same with <5% error. But pressure is around 1 Pa in CFX post. Why cannot I get ~ 1atm pressure? P.S Absolute pressure is set 1 atm (it is just reference) and in 'material' tab, reference temperature and pressure are STP (also just reference as CFX theory guide). |
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cfx, pressure boundary |
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