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Unsteady Navier-Stokes solutions for a NACA 0012 airfoil

Murthy, PS and Holla, VS and Kamath, H (2000) Unsteady Navier-Stokes solutions for a NACA 0012 airfoil. In: Computer Methods in Applied Mechanics and Engineering, 186 (1). pp. 85-99.

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Unsteady compressible Navier–Stokes equations are solved using third-order Roe's scheme for the inviscid fluxes and second-order central difference scheme for the viscous fluxes. The governing equations are solved using finite-volume implicit scheme in body-fitted curvilinear coordinate O-grid system with first-order time accuracy. Computations are reported for NACA 0012 airfoil at two angles of attach $30^o$ and $53^o$ M=0.20, $R_c = 3000$. Results are compared with those reported in literature and the unsteady behaviour of lift and drag coefficients has been predicted with respect to amplitude and bimodal variation. Also detailed unsteady behaviour at discrete time steps for one cycle has been investigated and presented in this paper.

Item Type: Journal Article
Publication: Computer Methods in Applied Mechanics and Engineering
Publisher: Elsevier
Additional Information: Copyright of this article belongs to Elsevier.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 25 Jul 2008
Last Modified: 19 Sep 2010 04:48
URI: http://eprints.iisc.ac.in/id/eprint/15249

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