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Get gradients of both lift and drag

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Old   January 6, 2016, 18:59
Default Get gradients of both lift and drag
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Ryan Barrett
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I need the adjoint gradients of both drag and lift. I can get the drag gradient or lift gradient by changing OBJECTIVE_FUNCTION= DRAG or OBJECTIVE_FUNCTION= LIFT in the config file. What can I do to get the gradients of both? Whatever I try I get the error: OBJECTIVE_FUNCTION: multiple values for type enum.
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Old   January 7, 2016, 10:03
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Tim Albring
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Hi Ry10,

like you already noticed, it is not possible to get both gradients at once. You have to do two separate runs. One with OBJECTIVE_FUNCTION=DRAG and one with OBJECTIVE_FUNCTION=LIFT.
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