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Memorias de investigación
Artículos en revistas:
Reduced order modeling of three dimensional external aerodynamic flows
Año:2012
Áreas de investigación
  • Dinamica de fluidos,
  • Ingenierías
Datos
Descripción
A method is presented to construct computationally efficient reduced-order models (ROMs) of three-dimensional aerodynamic flows around commercial aircraft components. The method is based on the proper orthogonal decomposition (POD) of a set of steady snapshots, which are calculated using an industrial solver based on some Reynolds averaged Navier-Stokes (RANS) equations. The POD-mode amplitudes are calculated by minimizing a residual defined from the Euler equations, even though the snapshots themselves are calculated from viscous equations. This makes the ROM independent of the peculiarities of the solver used to calculate the snapshots. Also, both the POD modes and the residual are calculated using points in the computational mesh that are concentrated in a close vicinity of the aircraft, which constitute a much smaller number than the total number of mesh points. Despite these simplifications, the method provides quite good approximations of the flow variables distributions in the whole computational domain, including the boundary layer attached to the aircraft surface and the wake. Thus, the method is both robust and computationally efficient, which is checked considering the aerodynamic flow around a horizontal tail plane, in the transonic range 0.4?Mach number?0.8, ?3°?angle of attack?3°.
Internacional
Si
JCR del ISI
Si
Título de la revista
Journal of Aerospace Engineering
ISSN
0893-1321
Factor de impacto JCR
0,924
Información de impacto
Volumen
25
DOI
10.1061/(ASCE)AS.1943-5525.0000148
Número de revista
4
Desde la página
588
Hasta la página
599
Mes
JUNIO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Jose Manuel Vega De Prada (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Dinámica y estabilidad no lineal en ingeniería aeroespacial
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