A stability analysis of the compressible boundary layer flow over indented surfaces

Garicano Mena, Jesús and Ferrer Vaccarezza, Esteban and Sanvido, Silvia and Valero Sánchez, Eusebio (2017). A stability analysis of the compressible boundary layer flow over indented surfaces. "Computer and Fluids", v. 160 ; pp. 14-25. ISSN 0045-7930. https://doi.org/10.1016/j.compfluid.2017.10.011.

Description

Title: A stability analysis of the compressible boundary layer flow over indented surfaces
Author/s:
  • Garicano Mena, Jesús
  • Ferrer Vaccarezza, Esteban
  • Sanvido, Silvia
  • Valero Sánchez, Eusebio
Item Type: Article
Título de Revista/Publicación: Computer and Fluids
Date: January 2017
ISSN: 0045-7930
Volume: 160
Subjects:
Freetext Keywords: Stability analysis; Compressible boundary layer flow; Flat plate; Indentation; High-order numerical method
Faculty: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Department: Matemática Aplicada a la Ingeniería Aeroespacial
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This contribution presents a stability analysis for compressible boundary layer flows over indented surfaces. Specifically, the effects of increasing depth D/δ* and Ma∞ number on perturbation time-decay rates and spatial amplification factors are quantified and compared with those of an unindented configuration. The indented surfaces represent aeronautical lifting surfaces endowed with the smooth gap resulting when a filler material applied at the junction of leading-edge and wing-box components retracts upon its curing process. Since the configuration considered is such that the parallel/weakly-parallel assumptions are necessarily compromised, a global temporal stability analysis is considered in this study. Our analysis does not require a parallel flow constrain, and hence it is believed to be valid when two dimensional effects are relevant.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7324298NNATACEusebio ValeroNew numerical and analytical tools for aerodynamic flow control

More information

Item ID: 48321
DC Identifier: http://oa.upm.es/48321/
OAI Identifier: oai:oa.upm.es:48321
DOI: 10.1016/j.compfluid.2017.10.011
Official URL: https://www.sciencedirect.com/science/article/pii/S0045793017303699
Deposited by: Memoria Investigacion
Deposited on: 17 Jan 2018 09:24
Last Modified: 05 Nov 2019 06:29
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