Global Stability Analysis of Blasius Boundary-Layer Flow over a Compliant Panel Accounting for Axial and Vertical Displacements

Tsigklifis, Konstantinos; Lucey, Anthony

doi:10.1007/978-3-662-48868-3_57

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Authors

Tsigklifis, Konstantinos

Lucey, Anthony

Date

2015

Type

Book Chapter

Metadata

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Citation

Tsigklifis, K. and Lucey, A. 2015. Global Stability Analysis of Blasius Boundary-Layer Flow over a Compliant Panel Accounting for Axial and Vertical Displacements, in Zhou, Y. and Lucey, A. and Liu, Y. and Huang, L. (ed), Fluid-Structure-Sound Interactions and Control: Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control, pp. 357-362: Heidelberg: Springer.

Source Title

Fluid-Structure-Sound Interactions and Control Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control

DOI

10.1007/978-3-662-48868-3_57

ISBN

366248868X

School

Department of Mechanical Engineering

URI

http://hdl.handle.net/20.500.11937/21293

Collection

Curtin Research Publications

Abstract

A state-space method is deployed in order to investigate the global stability of the Blasius base flow over a finite compliant panel embedded between rigid upstream and downstream wall sections accounting both for axial and vertical structural displacements. It is shown that global temporal instability can occur through the resonance between the Travelling-Wave Flutter (TWF) or Tollmien-Schlichting Wave (TSW) instability and the structural modes due to the vertical motion of the compliant section, while the axial structural modes remain stable in time. Local spatial stability of the least stable global temporal TSW mode reveals that a downstream amplified axial structural mode coexists with the downstream amplified TSW mode and it is stabilized by increasing the panel stiffness and destabilized as the Reynolds number decreases