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Fluent Boundary Condition and Mass flow rate ? |
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January 24, 2018, 04:01 |
Fluent Boundary Condition and Mass flow rate ?
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#1 |
Member
Hells Blade
Join Date: Nov 2017
Posts: 61
Rep Power: 8 |
I am getting Mass flow rate of -0.22220825 at Outlet and 0.22212315 at Inlet so higher values at the outlet which is not physically possible.
Generally mass flow values at outlet should be closer to inlet values for the simulation to converge I am currently using pressure inlet and pressure outlet( the condition idicates that the flow becomes 0 at outlet ) Do I then take my mass flow inlet values and run a diff simulation using mass flow inlet values and should i use pressure bc at the outlet ? |
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January 24, 2018, 12:10 |
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#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,675
Rep Power: 66 |
That's a difference of 0.01%. Fortunately/unfortunately, you are not doing real world physics but trying to do it numerically on a computer. There is such a thing as numerical errors.
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