Global Stability Analysis of Compressible Leading-Edge Flow on a Swept Wing

Christophe Mack 1, * Peter J. Schmid 1, * Jörn Sesterhenn 2, *
* Corresponding author
1 LadHyX - Laboratoire d'hydrodynamique
2 Department of Numerical Mathematics
Abstract : The global hydrodynamic stability of compressible leading-edge flow on a swept wing is addressed using Krylov-based iterative methods in conjunction with direct numerical simulations (DNS). Such a global hydrodynamic stability solver enables the analysis of complex fluid behavior by extracting global stability information directly from numerical simulations. Applying the DNS-based stability approach, unstable boundary-layer modes of the crossflow type and amplified as well as weakly-damped acoustic modes have been computed for a supersonic flow configuration. A parameter study reveals that, depending on the spanwise disturbance wavenumber β, boundary-layer modes or acoustic modes represent the dominant instability mechanism for the investigated parameter choices. Furthermore, the results of the present work clearly demonstrate the necessity of a global stability analysis to comprehensively understand the stability of swept leading-edge flow.
Document type :
Conference papers
Complete list of metadatas

Cited literature [7 references]  Display  Hide  Download
https://hal-polytechnique.archives-ouvertes.fr/hal-01058601
Contributor : Denis Roura <>
Submitted on : Wednesday, August 27, 2014 - 1:36:47 PM
Last modification on : Wednesday, March 27, 2019 - 4:39:25 PM
Long-term archiving on : Friday, November 28, 2014 - 10:26:42 AM

File

Global_Stability_vol_1-18.pdf
Publisher files allowed on an open archive

Identifiers

  • HAL Id : hal-01058601, version 1

Collections

X | X-LADHYX | PARISTECH | X-DEP-MECA

Citation

Christophe Mack, Peter J. Schmid, Jörn Sesterhenn. Global Stability Analysis of Compressible Leading-Edge Flow on a Swept Wing. 6th International Conference on Turbulence and Shear Flow Phenomena (TSFP-6), Jun 2009, Seoul, South Korea. pp.115-120. ⟨hal-01058601⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

234

Files downloads

837

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD