Detached-eddy simulation of transonic limit cycle oscillations using high order schemes

Baoyuan Wang, GeCheng Zha

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

This paper is to investigate the NLR7301 airfoil limit cycle oscillation (LCO) caused by the flow nonlinearity of the fluid-structural interaction using detached eddy simulation (DES) of turbulence. A low diffusion E-CUSP (LDE) scheme with 5th order WENO scheme is employed to calculate the inviscid fluxes. A fully conservative 4th order central differencing is used for the viscous terms. A fully coupled fluid-structural model is employed. The limited cycle oscillation (LCO) of the NLR7301 airfoil is simulated using DES method developed by Spalart et al. For the case computed in this paper, the predicted LCO agrees excellently with the experiment performed by Schewe et al. The solutions also show bifurcation and are dependent on the initial fields or initial perturbation. The developed computational fluid dynamics (CFD)/computational structure dynamics (CSD) simulation is able to capture the LCO with very small amplitudes measured in the experiment under the same conditions except that the computation is conducted in an unbounded field. This is attributed to the high order low diffusion schemes, fully coupled FSI model, and the DES method used.

Original languageEnglish
Pages (from-to)58-68
Number of pages11
JournalComputers and Fluids
Volume52
Issue number1
DOIs
StatePublished - Dec 30 2011

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Airfoils
Fluids
Computational fluid dynamics
Turbulence
Experiments
Fluxes
Computer simulation

Keywords

  • Detached eddy simulation
  • Fluid structural interaction
  • High order schemes
  • WENO scheme

ASJC Scopus subject areas

  • Computer Science(all)
  • Engineering(all)

Cite this

Detached-eddy simulation of transonic limit cycle oscillations using high order schemes. / Wang, Baoyuan; Zha, GeCheng.

In: Computers and Fluids, Vol. 52, No. 1, 30.12.2011, p. 58-68.

Research output: Contribution to journalArticle

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