Flow Simulation of a Five: Bladed Rotor Head

  • Moritz GrawunderEmail author
  • Roman Reß
  • Victor Stein
  • Christian Breitsamter
  • Nikolaus A. Adams
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 124)


This work presents an alternative approach for modeling rotating helicopter rotor heads including the cyclic pitch motion of blade cuffs. In contrast to the standard method employing the chimera overset grid approach, a sliding mesh interface in combination with deforming meshes is employed for this purpose. The results are obtained through numerical simulations based on the incompressible unsteady Reynolds averaged Navier–Stokes equations. The employed approach, including the mesh parameters, is presented in detail in this work. Furthermore, the present results are verified against trends observed in literature for similar cases. Finally, the impact of the cyclic pitch motion on the flow in the wake of an isolated rotating rotor head is analyzed.


Rotor aerodynamics Cyclic Sliding mesh Mesh deformation 



The research leading to these results received funding from the European Community’s Seventh Framework Program (FP/2007–2013) for the Clean Sky Joint Technology Initiative under grant agreement number 270563. The authors would like to thank project partner Eurocopter Deutschland GmbH for the fruitful collaboration and valuable support. Furthermore, special thanks are addressed to ANSYS CFX for providing the flow simulation software.


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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Moritz Grawunder
    • 1
    Email author
  • Roman Reß
    • 1
  • Victor Stein
    • 1
  • Christian Breitsamter
    • 1
  • Nikolaus A. Adams
    • 1
  1. 1.Lehrstuhl für Aerodynamik und StrömungsmechanikTechnische Universität MünchenGarching bei MünchenGermany

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