Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
A dynamic mode decomposition of the saturation process in the open cavity flow
Year:2016
Research Areas
  • Computacional fluid dynamics,
  • Aerodynamics
Information
Abstract
The flow over the incompressible open cavity has been studied both numerically and experimentally in previous works by the authors [6,16]. In these studies the in-depth linear stability analysis of the problem provided a detailed description of the flow features in the linear regime, where span-wise periodic perturbations over a steady two-dimensional flow were studied. The experiments conducted in said work, with span-wise walls, show the flow in a saturated state. The main structures that appear in the flow were identified as three-dimensional centrifugal modes. Even if the flow conditions for these two approaches are different, common features appear in both: the spatial structure of the modes in the saturated regime according to the experiments is the one predicted by linear analysis, but there is a shift in frequencies for the oscillating modes. The present work uses a three-dimensional non-steady direct numerical simulation (DNS) with periodic span-wise conditions to study the effect of saturation. In order to analyze the DNS results a Dynamic Mode Decomposition (DMD) was used.
International
Si
JCR
Si
Title
Aerospace Science And Technology
ISBN
1270-9638
Impact factor JCR
1,751
Impact info
Datos JCR del año 2015
Volume
52
10.1016/j.ast.2016.02.036
Journal number
From page
198
To page
206
Month
MAYO
Ranking
Participants
  • Autor: Nuno Filipe Da Costa Vinha (UPM)
  • Autor: Fernando Meseguer Garrido (UPM)
  • Autor: Javier de Vicente Buendia (UPM)
  • Autor: Eusebio Valero Sanchez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Centro o Instituto I+D+i: Centro de Investigación en Simulación Computacional
  • Departamento: Matemática Aplicada a la Ingeniería Aeroespacial
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)