A computational study of vortex-airfoil interaction using high-order finite difference methods

Magnus Svärd, Johan Lundberg, Jan Nordström

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Simulations of the interaction between a vortex and a NACA0012 airfoil are performed with a stable, high-order accurate (in space and time), multi-block finite difference solver for the compressible Navier-Stokes equations.We begin by computing a benchmark test case to validate the code. Next, the flow with steady inflow conditions are computed on several different grids. The resolution of the boundary layer as well as the amount of the artificial dissipation is studied to establish the necessary resolution requirements. We propose an accuracy test based on the weak imposition of the boundary conditions that does not require a grid refinement.Finally, we compute the vortex-airfoil interaction and calculate the lift and drag coefficients. It is shown that the viscous terms add the effect of detailed small scale structures to the lift and drag coefficients.

Original languageEnglish
Pages (from-to)1267-1274
Number of pages8
JournalComputers and Fluids
Issue number8
Publication statusPublished - Sept 2010
Externally publishedYes


  • Boundary conditions
  • High-order finite difference schemes
  • NACA0012
  • Stability
  • Vortex interaction

ASJC Scopus subject areas

  • General Computer Science
  • General Engineering


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