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How to plot Lift and Drag Coefficients using tecplot 360

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Old   October 7, 2011, 06:14
Default How to plot Lift and Drag Coefficients using tecplot 360
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Rui Vizinho de Oliveira
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Hello, I can calculate the integral values of forces and momentums over an airfoil surface but I can't obtain a plot from it. In the x variable option I can't select x coordinate. Instead the index "i" is selected and I don't see any curves.

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Rui
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Old   October 19, 2011, 09:09
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FlowLy
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Hi Rui,
which solver are you using?
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Old   October 19, 2011, 09:13
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Rui Vizinho de Oliveira
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Hi giuli@, I'm using the simpleFoam solver, for incompressible steady flow over an airfoil.

Best regards

Rui
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Old   October 20, 2011, 09:21
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FlowLy
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I'm not really into OF;
what I remember about plotting Cl in Tecplot360 with Fluent data is that I had to extract the variables I wanted in Fluent itself (saved in .xy files), and than import these and make xy plots in Tecplot.

Try to find the way of telling openfoam to get the Cl, Cd along the desired section for all the X values (what I was doing in Fluent),
Then, make a ".dat" file with this header:

VARIABLES="x","Cl","Cd"

and under, in columns, the corresponding values extracted.


Sorry but it's all I can think now :-/
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Old   April 13, 2012, 06:13
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FlowLy
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Errata corrige: I was plotting velocities components (it doesn't make sense to plot Cl and Cd along x since these are integral values)
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Old   April 13, 2012, 14:17
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Scott Rumage
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Rui,

You might review this tip on the Tecplot web site to see if it helps you with your question: http://www.tecplot.com/Training/Plot...dyResults.aspx

Regards,
Scott
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