Global stability analysis of compressible flow around swept wings

Christophe Mack 1, 2 Peter Schmid 1 J. Sesterhenn 2
1 LadHyX - Laboratoire d'hydrodynamique
2 Department of Numerical Mathematics (LRT1), Universität der Bundeswehr (UniBw), Werner-Heisenberg-Weg 39, München D-85577, Germany
Abstract : The global linear stability of compressible flow in the leading-edge region of a swept wing is studied using an iterative eigenvalue method. This method was implemented via a Jacobian-free framework where direct numerical simulations provide computed flow fields as the required input. It has been found that the investigated leading-edge flow is, over a selected range of flow parameters, most unstable to instabilities of the crossflow type. Our results further confirm that convex leading-edge curvature has a stabilizing influence on this flow. © 2010 Springer-Verlag Berlin Heidelberg.
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Submitted on : Tuesday, July 8, 2014 - 9:11:59 PM
Last modification on : Wednesday, March 27, 2019 - 4:39:25 PM

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Christophe Mack, Peter Schmid, J. Sesterhenn. Global stability analysis of compressible flow around swept wings. Andreas Dillmann, Gerd Heller, Michael Klaas, Hans-Peter Kreplin, Wolfgang Nitsche, Wolfgang Schröder. New Results in Numerical and Experimental Fluid Mechanics VII, 112 (-), Springer, pp.249-256, 2010, Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 978-3-642-14242-0. ⟨10.1007/978-3-642-14243-7_31⟩. ⟨hal-01020666⟩

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