Investigation of dynamic stall of airfoils and wings by CFD

Ercan Dumlupinar, V. R. Murthy

Research output: Chapter in Book/Entry/PoemConference contribution

12 Scopus citations


Dynamic stall is a complex unsteady flow phenomenon that produces detrimental effects in many aerodynamic systems. The most common example is the dynamic stall of the retreating blade of a helicopter rotor in forward flight. The dynamic stall pre- diction and the associated pre and post aerodynamic loads is critical for analyzing the stall flutter, vibration response, aeroacoustics, and control system loads for helicopters. The objective of this work is to use a RANS solver to investigate the phenomena of dynamic stall for airfoils and three-dimensional wings at helicopter rotor operating conditions. One and two equations turbulence models are investigated for the RANS closure for two-dimensional cases. Based on these results, SST - kω is used for three- dimensional problems with NACA0015 profile and all results compare well with the experimental measurements.

Original languageEnglish (US)
Title of host publication29th AIAA Applied Aerodynamics Conference 2011
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624101458
StatePublished - 2011
Event29th AIAA Applied Aerodynamics Conference 2011 - Honolulu, HI, United States
Duration: Jun 27 2011Jun 30 2011

Publication series

Name29th AIAA Applied Aerodynamics Conference 2011


Conference29th AIAA Applied Aerodynamics Conference 2011
Country/TerritoryUnited States
CityHonolulu, HI

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering


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