Import Pressure Loads from File - Unsatisfactory/Problems

Turbokraken
Turbokraken Altair Community Member
edited October 2020 in Community Q&A

Dear All,

I am currently modelling a wing-like structure which generates lift and is of course loaded by a aerodynamic pressure.

I have received a list of aerodynamic loads from pressure and suction side, which I transformed into my models coordinate system. My table looks something like this:

 

-85
76 405 1,2
-82 77 410 1,3
-81 77 414 1,4
-81 78 418 1,5
-80 79 422 1,6

 

I have X,Y,Z coordinates as well as magnitude and its fitting quite well with my geometry, albeit not perfectly.

Now if I apply this pressure using linear interpolation to my whole wing, its working fine. However I only need those pressures on one side, which is why I am only selecting the lower face.
When I click 'create' its calculating and then giving me the message 'No pressures were created' without telling me why. Upper side is also not working.

Furthermore, when I am looking at the pressure created with the full wing, all pressures have the exact same magnitude, which kind of diminishes the point of importing pressure loads.

 

Have I completely misunderstood the input data I need or is there something else going on? unfortunately the model is classified and I cannot share it, but I hope someone of you knows what has been going on. :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20' />

 

Thank you for reading this far and best regards,

Lennart

 

 

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Answers

  • Q.Nguyen-Dai
    Q.Nguyen-Dai Altair Community Member
    edited January 2020

    Without your HM model, nobody can help you

  • Turbokraken
    Turbokraken Altair Community Member
    edited January 2020

    Hello,

    You're right, I kind of expected this... I had just hoped I was doing some more obvious mistake.

    I had been searching in this forum and for this importing of loads someone had uploaded 2 files as tutorial where I could learn how it works.

    Unfortunately they were not available anymore.

     

    Is some sort of tutorial available for importing pressures from a .csv? That would really help me understanding my mistakes. :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20' />

    Thanks you your help.

     

    Best Regards,

    Lennart