Making section lift coefficient available in aerostructural problems about openaerostruct HOT 5 CLOSED

I believe the sectional lift coefficient is still available in aerostructural cases, but it just has a different promoted name (or a variable name) because we currently don't promote it in aerostruct_group.py.

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Dear Shugo,

thank you for the prompt reply. We could not find any other way to add it as a constraint in an aerostructural design.
Taking the Aerostructural Optimization with Tubular Spar (https://mdolab-openaerostruct.readthedocs-hosted.com/en/latest/aerostructural_tube_walkthrough.html#aerostructural-optimization-with-tubular-spar) example, the only way we found possible to add it as a constraint was

prob.model.add_constraint('AS_point_0.wing_perf.Cl', upper=0.45)

after promoting it in aerostruct_group.py as described above. We could not find any alternative way. are we missing something?

from openaerostruct.

The promoted name of Cl is AS_point_0.wing_perf.aero_funcs.Cl, thus it should be the following:

prob.model.add_constraint('AS_point_0.wing_perf.aero_funcs.Cl', upper=0.45)

Generally, the easiest way to check the promoted name of a variable is the N2 diagram.

But it would be nice to have consistent promoted names for Cl between aero and aerostructural cases. Sorry for the confusion also the lack of documentation.
Would you be able to open a PR that promotes Cl in integration/aerostruct_group.py? I don't think this change will break anything.

from openaerostruct.

Just opened a PR as suggested. Thank you for the quick action.

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Handled in #392

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