Spatial linear global instability analysis of the HIFiRE-5 elliptic cone model flow

Paredes Gonzalez, Pedro and Theofilis, Vassilios (2013). Spatial linear global instability analysis of the HIFiRE-5 elliptic cone model flow. In: "43rd AIAA Fluid Dynamics Conference", 24/06/2013 - 27/06/2013, San Diego, CA, USA. pp.. https://doi.org/10.2514/6.2013-2880.

Description

Title: Spatial linear global instability analysis of the HIFiRE-5 elliptic cone model flow
Author/s:
  • Paredes Gonzalez, Pedro
  • Theofilis, Vassilios
Item Type: Presentation at Congress or Conference (Article)
Event Title: 43rd AIAA Fluid Dynamics Conference
Event Dates: 24/06/2013 - 27/06/2013
Event Location: San Diego, CA, USA
Title of Book: AIAA 2013-2880
Date: 24 June 2013
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 linear instability of the three-dimensional boundary-layer over the HIFiRE-5 flight test geometry, i.e. a rounded-tip 2:1 elliptic cone, at Mach 7, has been analyzed through spatial BiGlobal analysis, in a effort to understand transition and accurately predict local heat loads on next-generation ight vehicles. The results at an intermediate axial section of the cone, Re x = 8x10 5, show three different families of spatially amplied linear global modes, the attachment-line and cross- ow modes known from earlier analyses, and a new global mode, peaking in the vicinity of the minor axis of the cone, termed \center-line mode". We discover that a sequence of symmetric and anti-symmetric centerline modes exist and, for the basic ow at hand, are maximally amplied around F* = 130kHz. The wavenumbers and spatial distribution of amplitude functions of the centerline modes are documented

More information

Item ID: 30168
DC Identifier: http://oa.upm.es/30168/
OAI Identifier: oai:oa.upm.es:30168
DOI: 10.2514/6.2013-2880
Deposited by: Memoria Investigacion
Deposited on: 04 Nov 2014 18:02
Last Modified: 27 Apr 2016 07:52
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