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July 22, 2010, 08:30
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contour plot: mass flow difference
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Member
jaikrishna
Join Date: Mar 2009
Location: chennai
Posts: 56
Rep Power: 17  |
Pls ref attached pic.
simulation mode: transient, compressible. I've specified mass flow rate in kg/sec in pre. I've not get correct value in contour plot. why? my friend told that in compressible simulation you maynot get correct value, you will get only in incompressible mode only. Is it true? pls explain |
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July 22, 2010, 08:58
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#2 |
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Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,854
Rep Power: 144 |
The contour plot is showing mass flow rate per element. You have to integrate that over the cross section to get the total mass flow rate. Your friend is correct, for transient compressible flow you will not get constant mass flow rate in general. It is due to the pressure waves, and how they take some time to travel up and down the domain.
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December 15, 2017, 21:51
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#3 |
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Member
Hells Blade
Join Date: Nov 2017
Posts: 61
Rep Power: 9 |
ghrocks could you please tell me how cn i intergrate mass this in fluent
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December 16, 2017, 07:20
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#4 |
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Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,854
Rep Power: 144 |
Try the fluent forum.
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Linear Mode
