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Aero modifications

Open bjonkman opened this issue 8 months ago • 2 comments

Feature or improvement description This pull request

  • makes some modifications to UAMod 5 for use in full 360-degree angles of attack.
  • uses a weighted-average of the axial induction for DBEMT input instead of just a uniform average of axial induction at all the nodes.
  • allows the user to change the IntegrationMethod used in UA (UA_Mod 4, 5, etc)
  • allows the user to have the code calculate CantAngle (if BlCrvAng is not specified in the input file). These calculated values are printed in the summary file.
  • caps the Ct, Cp, and Cq outputs if their denominators ever get too small
  • implemented the code around BldNd_BlOutNd in AeroDyn, allowing the user to specify which nodes they would like to output.
  • fixes an issue where the AeroDyn echo file would not include blade property files.
  • reports an error if one exists in the BEMT initialization of states (likely rare)
  • updates some calculations of the UA parameters in AFI initialization
  • removes non-standard tabs from MoorDyn
  • changes TwrAero from a logical to integer internally (the input file still recognizes the logical value)
  • simplifies some logic around the buoyancy calculations

Related issue, if one exists

Impacted areas of the software AeroDyn: DBEMT, UA (UA_Mod 4, 5, or 6)

Additional supporting information

Test results, if applicable

Failing cases:

  • ad_BAR_SineMotion_UA4_DBEMT3

    • This has differences in the InflowWind output channel; I need to understand what would cause this this a little better before merging.
    • image
    • image
  • MHK_RM1_Fixed

    • The differences here are minor: image image
  • Fake5MW_AeroLin_B1_UA4_DBEMT3

    • Frequencies are less than 0.3% different (less than 0.009 Hz)
    • Damping is within 0.01%
  • Fake5MW_AeroLin_B3_UA6

    • Frequencies are less than 0.2% different (less than 0.001 Hz)
    • Damping is within 0.005%

bjonkman avatar Jun 26 '24 00:06 bjonkman