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A Zonal Method For Unsteady, Viscous, Compressible Airfoil Flows

✍ Scribed by J.A. Ekaterinaris; A.S. Cricelli; M.F. Platzer

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
519 KB
Volume
8
Category
Article
ISSN
0889-9746

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✦ Synopsis

The analysis and prediction of fluid-structure interaction for viscous, separated flows presents a great challenge to the aeroelastician. In this paper a zonal method for the computation of unsteady, viscous, separated flows over airfoils is presented. The flowfield is divided into a viscous inner zone, where higher grid resolution may be used, and an inviscid outer zone. Zonal grid solutions are presented for subsonic and transonic flows over a NACA-0012 airfoil subject to ramp and oscillatory motions. Transonic shock/boundary layer interaction and dynamic stall effects are encountered during the unsteady motion. The computed solutions are in good agreement with available experimental data.

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