Nonlinear description of transversal motion in a laminar boundary layer with streaks

Martín Bautista, Juan A. and Martel Escobar, Carlos (2012). Nonlinear description of transversal motion in a laminar boundary layer with streaks. "AIAA Meeting Papers" ; pp. 1-12. https://doi.org/10.2514/6.2012-3272.

Description

Title: Nonlinear description of transversal motion in a laminar boundary layer with streaks
Author/s:
  • Martín Bautista, Juan A.
  • Martel Escobar, Carlos
Item Type: Article
Título de Revista/Publicación: AIAA Meeting Papers
Date: June 2012
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Fundamentos Matemáticos de la Tecnología Aeronáutica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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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.

More information

Item ID: 15300
DC Identifier: http://oa.upm.es/15300/
OAI Identifier: oai:oa.upm.es:15300
DOI: 10.2514/6.2012-3272
Official URL: http://arc.aiaa.org/doi/abs/10.2514/6.2012-3272
Deposited by: Memoria Investigacion
Deposited on: 12 Mar 2015 16:12
Last Modified: 13 Mar 2015 11:27
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