Numerical simulation of aerodynamics of coupled flapping-pitching airfoil with trailing-edge flap

Mao Yang, Shan Shan Xu

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Navier-Stokes equations were numerically solved with Reynolds averaged Spalart-Allmaras turbulence model in order to analyze the effects of coupled flapping-pitching oscillation on the unsteady aerodynamics and dynamic stall characteristics of an airfoil with active trailing-edge flap (TEF) at high speed forward flight. Results show that compared to simple pitching airfoil with TEF, when flapping oscillating with same frequency and phase is added, higher overshoot of aerodynamic coefficients and larger hysteresis loops are observed. Coupled oscillation increases area of viscous interaction resulting in deep dynamic stall instead of light dynamic stall. Coupled oscillation increases the sensitivity of pitching moment coefficient on flow-field variation.

Original languageEnglish
Pages (from-to)149-153+180
JournalZhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science)
Volume48
Issue number1
DOIs
StatePublished - Jan 2014

Keywords

  • Computational fluid dynamics (CFD)
  • Dynamic stall
  • Flapping-pitching oscillation
  • Trailing-edge flap (TEF)
  • Turbulence model

Fingerprint

Dive into the research topics of 'Numerical simulation of aerodynamics of coupled flapping-pitching airfoil with trailing-edge flap'. Together they form a unique fingerprint.

Cite this