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Memorias de investigación
Communications at congresses:
Nonlinear description of transversal motion in a laminar boundary layer with streaks
Year:2012
Research Areas
  • 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
Congress
42nd AIAA Fluid Dynamics Conference and Exhibit
960
Place
Nueva Orleans, Louisiana, EEUU.
Reviewers
Si
ISBN/ISSN
978-1-60086-933-4
10.2514/MFDC12
Start Date
25/06/2012
End Date
28/06/2012
From page
1
To page
12
AIAA Meeting Papers
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
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