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Post-process for mass flow rate

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Old   May 13, 2009, 05:29
Default Post-process for mass flow rate
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wei
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wei
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I run an engine simulation and am able to present velocity and static pressure at desire crank angle using contour plot or vector plot.

For mass flow rate, how can I extract the information and post-process it?

p/s some more information added

Later, I try

getc flux

However, the output printed "*Error - all 6 fluxes are not on file". What is that means?

Last edited by wei; May 13, 2009 at 10:29.
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Old   May 18, 2009, 05:19
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Anton Lyaskin
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Take a look at INTEGRATE command - may be that's what you need?
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Old   May 18, 2009, 09:45
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INTEGRATE is a good option as Anton mentions. I;m not sure of what you are looking for in particular, but also check SUMMARY command.
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Old   May 19, 2009, 12:00
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thanks for your comments.

I try to check the mass flow rate of a surface. I goto Plot > Flux Sum > Pick Cells to select four cells. The output prints:

For 4 faces: area = 0.40E-01 flux= -0.821894E-04
total cumulative area (absolute) = 0.7E-01
total cumulative area (scaled) = 0.7E-07
total cumulative fllux = -0.143841E-03

If the unit of dimension in my case is milimeter,
1) What units are above numbers?
2) What is the differences of 'area', 'total cumulative area (absolute) ' and 'total cumulative area (scaled)' ?
3) What is the differences of 'flux', 'total cumulative flux' ?
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Old   May 19, 2009, 12:43
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The total area (Scaled) is in mm^2. You must have scaled (STAR CD does this when you choose the mm option) before writing out the geometry file. This is the scaled area.
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