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How are the mass flux and mass flow rate defined?

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Old   November 6, 2002, 17:16
Default How are the mass flux and mass flow rate defined?
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Miles
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I am confused about the term 'mass flux' and 'mass flow rate'. It seems that they are same and they both can be used as' cell mass flux' and 'cell mass flow'.
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Old   November 7, 2002, 06:24
Default Re: How are the mass flux and mass flow rate defin
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Steve
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The terms themselves are simple enough: "mass flux" is defined as "mass flow rate" per unit area. Maybe their use in this particular CFD code is confusing or wrong.
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Old   November 7, 2002, 09:45
Default Re: How are the mass flux and mass flow rate defin
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deloubie
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But how can I know the cell surface area? One cell has not only one surface. In the nom.inc, which one is the cell surface that is facing outside? I need to use the surface to calculate the mass flow rate with the density and velocity.
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