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Drag coefficient gradient: 0 error

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Old   October 19, 2014, 16:45
Default Drag coefficient gradient: 0 error
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Hello again,

I tried to optimize NACA65210 for supersonic conditions with C-Grid. I defined all constraints and geometrical parameters clearly. However, when I run I get the drag coefficient gradient is 0.

How can I solve it ?

Kind Regards,
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Old   May 26, 2015, 12:30
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Sravya Nimmagadda
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Can you attach your config file for further information?
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