BiGlobal and point vortex methods for the instability analysis of wakes

Tendero Ventanas, Juan Angel and Paredes Gonzalez, Pedro and Theofilis, Vassilios and Roura, Miquel and Govindarajan, Rama (2013). BiGlobal and point vortex methods for the instability analysis of wakes. In: "31st AIAA Applied Aerodynamics Conference", 24/06/2013 - 27/06/2013, San Diego, CA, USA. pp.. https://doi.org/10.2514/6.2013-2820.

Description

Title: BiGlobal and point vortex methods for the instability analysis of wakes
Author/s:
  • Tendero Ventanas, Juan Angel
  • Paredes Gonzalez, Pedro
  • Theofilis, Vassilios
  • Roura, Miquel
  • Govindarajan, Rama
Item Type: Presentation at Congress or Conference (Article)
Event Title: 31st AIAA Applied Aerodynamics Conference
Event Dates: 24/06/2013 - 27/06/2013
Event Location: San Diego, CA, USA
Title of Book: 31st AIAA Applied Aerodynamics Conference : proceedings
Date: December 2013
Volume: 3
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Motopropulsión y Termofluidodinámica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (4MB) | Preview

Abstract

To better understand destruction mechanisms of wake-vortices behind aircraft, the point vortex method for stability (inviscid) used by Crow is here compared with viscous modal global stability analysis of the linearized Navier-Stokes equations acting on a two-dimensional basic flow, i.e. BiGlobal stability analysis. The fact that the BiGlobal method is viscous, and uses a flnite área vortex model, gives rise to results somewhat different from the point vortex model. It adds more parameters to the problem, but is more realistic.

More information

Item ID: 30030
DC Identifier: http://oa.upm.es/30030/
OAI Identifier: oai:oa.upm.es:30030
DOI: 10.2514/6.2013-2820
Deposited by: Memoria Investigacion
Deposited on: 09 Apr 2015 12:05
Last Modified: 10 Nov 2017 15:02
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM