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Difference MassFlow Function, AreaInt and AreaIntAbs

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Old   March 22, 2011, 04:45
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Hi there

This is wat the Out File says
+--------------------------------------------------------------------+
| P-Mass-Fan |
+--------------------------------------------------------------------+
Domain Interface : Interface Zyl_Fan_Bottom (Side 2) 1.4351E-02
Domain Interface : Interface Zyl_Fan_Side (Side 2) -2.4885E-02
Domain Interface : Interface Zyl_Fan_Top (Side 2) 1.0534E-02
-----------
Domain Imbalance : 2.4521E-09

Domain Imbalance, in %: 0.0000 %

To calculate my massflowdata I used following definitions:

massFlow function (Function of Ansys itself) = - rho*V*n.

@Stumpy V is the Velocity, why should I use there Vdot - acceleration?! I don't get it? I think you mean Vdot as Volumefluw? The meaning of V here is the velocity. Am i right?

AreaInt = (Density * Velocity in Stn Frame w)@Interface
(depends on the outlet or inlet direction)

AbsAreInt = (Density * abs(Velocity in Stn Frame w)@Interface
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