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December 19, 2003, 14:07 |
Mass balance problem!
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#1 |
Guest
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Hello!!
I have problem with the mass balance in a pipe with one inlet and two outlets. I am using velocity inlet and Pressure outlet as B.C. But the mass balance doesn't mach, there is a difference of 20% between the mass flow rate at the inlet and the outlets. Any ideas how can I close the mass balance? Thanks in advance JADG |
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December 20, 2003, 07:13 |
Re: Mass balance problem!
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#2 |
Guest
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You could try reducing the accepted residuals for convergence of the continuity equation.
Hi ap |
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December 21, 2003, 07:41 |
Re: Mass balance problem!
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#3 |
Guest
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I hope you must be using the segregated solver. Just plot the contours of Mass Balance and you can find where the mass balance residuals are high. Check the quality of grid at that location. If you feel the quality is OK then reduce the convergence limit.
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December 21, 2003, 15:33 |
Re: Mass balance problem!
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#4 |
Guest
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Thank you guys I will reduce the residual limits.
JADG |
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December 27, 2003, 11:40 |
Re: Mass balance problem!
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#5 |
Guest
Posts: n/a
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set the target mass flow rate by the mass-flow-rate-settings text command
bye |
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