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A computational study of vortex-airfoil interaction using high-order finite difference methods
University of Edinburgh.
Uppsala University.
Uppsala universitet, Avdelningen för teknisk databehandling.ORCID iD: 0000-0002-7972-6183
2010 (English)In: Computers & Fluids, ISSN 0045-7930, E-ISSN 1879-0747, Vol. 39, no 8, 1267-1274 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
Elsevier , 2010. Vol. 39, no 8, 1267-1274 p.
Keyword [en]
High-order finite difference schemes; NACA0012; Vortex interaction; Stability; Boundary conditions
National Category
Computational Mathematics Computer Science
URN: urn:nbn:se:liu:diva-68614DOI: 10.1016/j.compfluid.2010.03.009ISI: 000279410000003OAI: diva2:418719
Original Publication: Magnus Svärd, Johan Lundberg and Jan Nordström, A computational study of vortex-airfoil interaction using high-order finite difference methods, 2010, Computers & Fluids, (39), 1267-1274. Copyright: Elsevier Science B.V., Amsterdam. Available from: 2010-04-13 Created: 2011-05-24 Last updated: 2013-08-30

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