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Mass Flow Rate Not Available?

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Old   July 11, 2010, 23:10
Default Mass Flow Rate Not Available?
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Hi all,

Im trying to obtain the mass flow rate of an exhaust that im simulating. However, when ever the report runs, it just says

Note: Field funciton mass Flow Rate is not available inside Region 1 for smoothing. Using zero except at boundaries where it is defined.

Has anyone encoutered this issue before?

Heres the background of my project.
I have an nozzle spraying upwards into an 'ejector' to the right of the nozzle, there is a long tube, and at the end of the exhaust and the tube, I put two large boxes and set one face boundary to free stream. Does that seem correct to anyone?

Thanks in advance,
T
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Old   July 12, 2010, 10:41
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Are you trying to get the mass flow rate in a plane section or some derived part that you have generated? If you are trying to plot the mass flow rate for this part then the warning is generated.
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Old   July 14, 2010, 01:37
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New Question! Didnt want to bombard this forum with another thread.

I was curious as to what parameter in StarCCM+ controls the Tdr.

I ran a simulation with decent results, but then i run it on a similar geometry and the Tdr goes all haywire! The two geometries are VERY similar. And I dont understand whats going on!

And lastly, the Residuals given in StarCCM+, are they absolute or relative residuals??

Last edited by trex930; August 10, 2010 at 21:02.
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Old   August 10, 2010, 21:04
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Can anyone help me out?
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Old   August 11, 2010, 08:21
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The residuals are normalized... if you wnat to see the absulte, go to the monitors folder and at each monitor change the normalization option to Off..
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