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CFD Based Design Optimization of Tail Boom Strake for Hover and Sideward Flight Performance

Furkan Kurban, Murat Senipek, Osman Güngör, Alper Ezertas, Turkish Aerospace Inc.

May 10, 2022

https://doi.org/10.4050/F-0078-2022-17479

Abstract:
CFD based multi-point multi objective optimization method is performed to search optimum tail boom strake geometry in order to improve helicopter hover and sideward flight (10kts, 20kts, 30kts and 40kts) performance at hot and high atmospheric conditions. Upper and lower strake geometries are parametrized by using NX CAD tool and effect of the designed strake geometries are analyzed at specified flight conditions by using computation fluid dynamic (CFD) methods. Star CCM+ is used as mesher and solver. Downwash of the main and tail rotor is modelled by using built-in virtual disk model in Star CCM+. Optimization is performed by using multi-point multi objective optimization tool HEEDS and multi-objective SHERPA optimization algorithm is preferred for optimization. Accumulated pedal improvement and total power reduction are specified as objectives. At the end of the optimization workflow, improvements of the best strakes on pedal input and power required at hover are investigated. Furthermore, sensitivity of the design parameters, population of the design space and flow field around tail boom are examined in detail.


CFD Based Design Optimization of Tail Boom Strake for Hover and Sideward Flight Performance

  • Presented at Forum 78
  • 10 pages
  • SKU # : F-0078-2022-17479
  • Aircraft Design I

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CFD Based Design Optimization of Tail Boom Strake for Hover and Sideward Flight Performance

Authors / Details:
Furkan Kurban, Murat Senipek, Osman Güngör, Alper Ezertas, Turkish Aerospace Inc.