On Multidimensional Global Eigenvalue Problems for Hydrodynamic and Aeroacoustic instabilities

Theofilis, Vassilios (2009). On Multidimensional Global Eigenvalue Problems for Hydrodynamic and Aeroacoustic instabilities. In: "47th AIAA Aerospace Sciences Meeting Including The New Horizons Forum and Aerospace Exposition", 05/01/2009 - 08/01/2009, Orlando, Florida, USA. ISBN 978-1-56347-969-4.

Description

Title: On Multidimensional Global Eigenvalue Problems for Hydrodynamic and Aeroacoustic instabilities
Author/s:
  • Theofilis, Vassilios
Item Type: Presentation at Congress or Conference (Article)
Event Title: 47th AIAA Aerospace Sciences Meeting Including The New Horizons Forum and Aerospace Exposition
Event Dates: 05/01/2009 - 08/01/2009
Event Location: Orlando, Florida, USA
Title of Book: 2009 AIAA Meeting Papers on Disc. Conference Proceeding Series
Date: 2009
ISBN: 978-1-56347-969-4
Volume: 14, Is
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Motopropulsión y Termofluidodinámica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The present effort discusses multi-dimensional eigenvalue problems as applied to the solution of hydro- dynamic and aeroacoustic instability problems on complex geometries. As a demonstrator, global linear instability analyses of steady lamina flows on an elliptic cone in compressible ¿¿ows are monitored; one such flow, obtained using a standard aerodynamics solver, is presented figure 1. Flows on this geometry are intrinsically three-dimensional; as a matter of fact the three-dimensionality of the geometry of the elliptic cone accounts for the departure of the laminar-turbulent transition process from the fairly well-understood scenarios on circular cones and other axisymmetric bodies of revolution. Shedding light on the essentially three-dimensional transition process on the elliptic cone provides motivation for several recent experimental and numerical efforts, as well as for the theoretical/numerical methodology described herein.

More information

Item ID: 5692
DC Identifier: http://oa.upm.es/5692/
OAI Identifier: oai:oa.upm.es:5692
Official URL: http://www.aiaa.org/content.cfm?pageid=534&id=1781
Deposited by: Memoria Investigacion
Deposited on: 13 Jan 2011 10:26
Last Modified: 22 Sep 2014 10:21
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