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Feature/vertical only empennage

JensViloehrrequested to merge
feature/vertical_only_empennage into main

Description

For the uniselect tandem-Wing configuration, a new empennage design method was created. As the tandem-wing has already a aft wing acting as the horizontal stabilizer, only a vertical stabilizer must be designed. As volume coefficient methods may not be applicable for the tandem wing, a simple method using AVL is implemented. In this method, the basic wing and vertical empennage geometry is built up as AVL geometry and AVL is called in the background. Then, the stability derivate c_n_beta of the whole airplane is calculated and compared against a desired value from Raymer. In an convergence loop, the vertical stabilizer is resized until the desired stability is achieved.

Testing Instructions

  1. Download this branch and build empennage design.
  2. Download AVL (https://web.mit.edu/drela/Public/web/avl/) and put the executable in the empennage_design folder, as it is needed for the stability calculations.
  3. Run on an ac_xml file with the configuration set to "tandem_wing" and the empennage_type set to "vertical_only". The stabilizer should now be sized with AVL. E.g. you can use this ac_xml of a tandem wing: UNICADO-Tandem.xml

Developer Checklist

  • Code has been tested locally and/or in pipeline.
  • (if applicable) documentation updated.
  • (if applicable) impact of new dependencies reviewed and included in project.
  • Merge conflicts resolved with the target branch.

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