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Negative mass flow rate

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Old   December 21, 2016, 08:47
Default Negative mass flow rate
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Hello all, im trying to model port flow simulation of an engine to get the mass flow rate across the inlet valve. the problem is that the mass flow rate gets a negative value. ive tried to increase the pressure difference but it still also gives a negative result.
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Old   December 23, 2016, 08:50
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Are you sure the negative isn't denoting the direction of flow?
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