Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Nonlinear description of transversal motion in a laminar boundary layer with streaks
Year:2012
Research Areas
  • Equations on partial differentials,
  • Fluyd dynamics,
  • Aeronautical engineering
Information
Abstract
The nonlinear streamwise growth of a spanwise periodic array of steady streaks in a flat plate boundary layer is numerically computed using the well known Reduced Navier-Stokes formulation. It is found that the flow configuration changes substantially when the amplitude of the streaks grows and the nonlinear effects come into play. The transversal motion (in the wall normal-spanwise plane), which is normally not considered, becomes non-negligible in the nonlinear regime, and it strongly distorts the streamwise velocity profiles, which end up being quite different from those predicted by the linear theory. We analyze in detail the resulting flow patterns for the nonlinearly saturated streaks, and compare them with available experimental results.
International
Si
JCR
No
Title
AIAA Meeting papers
ISBN
978-1-60086-933-4
Impact factor JCR
Impact info
Volume
10.2514/6.2012-3272
Journal number
From page
1
To page
10
Month
JUNIO
Ranking
Participants
  • Autor: Juan Angel Martin Bautista (UPM)
  • Autor: Carlos Martel Escobar (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Dinámica y estabilidad no lineal en ingeniería aeroespacial
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)