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Memorias de investigación
Communications at congresses:
Reduced order models of industrial fluid-thermal problems
Research Areas
  • Mathematics,
  • Naval engineering
A method is presented to generate reduced order models (ROMs) in Fluid Dynamics problems. The method is based on the expansion of the flow variables on a Proper Orthogonal Decomposition (POD) basis, obtained from a limited number of snapshots calculated via Computational Fluid Dynamics (CFD). Then, the POD-mode amplitudes are calculated as minimizers of a properly defined overall residual of the equations and boundary conditions. The residual can be defined using only a limited number of points in the flow field, which can be scattered either all over the whole computational domain or over a smaller projection window. The process is both computationally efficient (reconstructed flow fields require less than 1 % of the time needed to compute a full CFD solution) and flexible (the projection window can avoid regions of large localized CFD errors). Also, the number and distribution of snapshots and the effect of CFD errors are briefly discussed, to conclude that the method is numerically robust, since the results are largely insensitive to the definition of the residual, to CFD errors, and to the CFD method itself, which may contain artificial stabilizing terms. Thus, the method is amenable for practical engineering applications.
International Conference on Computational and Mathematical Methods, 2009
Gijón (Asturias), Spain
Start Date
End Date
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Proceedings of the 2009 International Conference on Computational and Mathematical Methods in Science and Engineering
  • Autor: Diego Alonso Fernández (UPM)
  • Autor: Luis Santiago Lorente Manzanares (UPM)
  • Autor: Angel Gerardo Velazquez Lopez (UPM)
  • Autor: Jose Manuel Vega De Prada (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Dinámica y estabilidad no lineal en ingeniería aeroespacial
  • Grupo de Investigación: Ingeniería de Sistemas y Microsistemas Termofluidodinámicos aplicados al Sector Aeroespacial
  • Departamento: Motopropulsión y Termofluidodinámica
  • Departamento: Fundamentos Matemáticos de la Tecnología Aeronáutica
S2i 2020 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)