Domain Reduction Strategy for Stability Analysis of a NACA0012 airfoil

Sanvido, Silvia and Abruzzese, Gennaro and Vicente Buendia, Javier de and Valero Sánchez, Eusebio (2016). Domain Reduction Strategy for Stability Analysis of a NACA0012 airfoil. In: "5th ENGOPT Conference", 19-23 Jun 2016, Iguassu Falls, Brazil. ISBN 978-85-7650-548-8. pp. 2-11.

Description

Title: Domain Reduction Strategy for Stability Analysis of a NACA0012 airfoil
Author/s:
  • Sanvido, Silvia
  • Abruzzese, Gennaro
  • Vicente Buendia, Javier de
  • Valero Sánchez, Eusebio
Item Type: Presentation at Congress or Conference (Article)
Event Title: 5th ENGOPT Conference
Event Dates: 19-23 Jun 2016
Event Location: Iguassu Falls, Brazil
Title of Book: EngOPt 2016 : 5th International COnference on Engineering Optimization : proceedings
Date: 2016
ISBN: 978-85-7650-548-8
Subjects:
Freetext Keywords: Stability Analysis, Domain reduction, Bu�et phenomenon
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

A new reduction domain strategy is applied in the framework of stability analysis for industrial applications. The aim of this work is to investigate if the geometrical approach proposed could be used as alternative or in combination with the numerical techniques that are currently employed for alleviating the prohibitive computational costs associated to the study of the stability of complex aerodynamic ows.Global linear stability analysis has been applied to a NACA0012 airfoil to study the transient bu�et phenomenon. The leading disturbance associated to bu�eting remains located in a inner región of the computational domain, making this problem a perfect test case for the domain reduction strategy presented here. The base ow has been obtained using DLR-TAU code on a �rst �ne mesh (100 chords) while di�erent, smaller meshes have been used to perform the stability analysis. The eigenvalue problem associated to stability has been solved using a Krylov-Schur projection method with direct LU preconditioning. Results show that the reduction in the computational domain is an useful technique to recover disturbances bounded in a particular region of the aforementioned domain.

More information

Item ID: 48678
DC Identifier: http://oa.upm.es/48678/
OAI Identifier: oai:oa.upm.es:48678
Official URL: http://engopt.org/downloads/ProceedingsEngOpt2016.pdf
Deposited by: Memoria Investigacion
Deposited on: 29 Jan 2018 12:42
Last Modified: 29 Jan 2018 12:42
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