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Residual Curve

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Old   November 28, 2011, 03:45
Post Residual Curve
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Hello Everyone,
Can anybody suggest me how to plot residual curve in para-view? and how to get co-efficient of pressure plot. Cause only pressure plot is coming.
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Old   November 28, 2011, 03:56
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paraview won't plot your residual plot, since the data is not stored in any of the fields. if you want a residual plot you should take a look at this thread Tutorial of how to plot residuals !

what kind of coefficients do you mean?
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Old   November 28, 2011, 04:02
Post Residual curve:-
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Hello Roman,
I am asking about co-efficient of pressure for external aerodynamic problem.
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Old   November 28, 2011, 04:04
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you have to calculate those from the force balances

you probably want to have have the lift and drag coefficient. have a look at the function object and how to calculate the force coefficients. i think i have seen similar threads in the forum.
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Old   January 23, 2012, 05:43
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Hey,

I guess you now know how to get the residuals, right?

For the pressure coefficient, you could use ParaView (you need a reasonably new version). Read your geometry into ParaView and do a PlotOnIntersectionCurves - then you can get the surface pressure out and eventually compute your pressure coefficient either inside ParaView or outside it (which is what I do).

Mads
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Old   January 23, 2012, 12:59
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Hello Madsr,
yes i can plot residuals now, i will try as per your suggestion.

Thanks and regards,
Nilesh
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Old   April 2, 2012, 10:14
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Quote:
Originally Posted by Nilesh_87 View Post
Hello Madsr,
yes i can plot residuals now, i will try as per your suggestion.

Thanks and regards,
Nilesh
Hi Nilesh, how did you plot residuals in ParaView? would you like to tell me?
Thank you!
Wei.
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Old   April 28, 2013, 03:43
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Quote:
Originally Posted by MadsR View Post
Hey,

I guess you now know how to get the residuals, right?

For the pressure coefficient, you could use ParaView (you need a reasonably new version). Read your geometry into ParaView and do a PlotOnIntersectionCurves - then you can get the surface pressure out and eventually compute your pressure coefficient either inside ParaView or outside it (which is what I do).

Mads

hi Mads
how can i use PlotOnIntersectionCurves
in paraview? i don't know what normal i should use, x y or z ?
i put my VTK file of the airfoil and the forceCoeffs on it in the following, would you please please give me some advice to use PlotOnIntersectionCurves?
thank you very very much
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File Type: gz airfoil_airfoil.tar.gz (17.8 KB, 3 views)
File Type: gz forces.tar.gz (23.0 KB, 3 views)
File Type: gz forceCoeffs.tar.gz (6.5 KB, 4 views)
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Old   April 28, 2013, 12:30
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FYI: I've answered to Saeideh Mohamadi on the following thread: plot cp on airfoils
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