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Martín Bautista, Juan A. and Martel Escobar, Carlos (2012). Nonlinear description of transversal motion in a laminar boundary layer with streaks. In: "42nd AIAA Fluid Dynamics Conference", 25/06/2012 - 28/06/2012, Nueva Orleans, Louisiana, EEUU.. pp. 1-12. https://doi.org/10.2514/MFDC12.
Title: | Nonlinear description of transversal motion in a laminar boundary layer with streaks |
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Author/s: |
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Item Type: | Presentation at Congress or Conference (Article) |
Event Title: | 42nd AIAA Fluid Dynamics Conference |
Event Dates: | 25/06/2012 - 28/06/2012 |
Event Location: | Nueva Orleans, Louisiana, EEUU. |
Title of Book: | 42nd AIAA Fluid Dynamics Conference and Exhibit |
Date: | 27 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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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.
Item ID: | 19227 |
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DC Identifier: | https://oa.upm.es/19227/ |
OAI Identifier: | oai:oa.upm.es:19227 |
DOI: | 10.2514/MFDC12 |
Official URL: | http://arc.aiaa.org/doi/abs/10.2514/6.2012-3272 |
Deposited by: | Memoria Investigacion |
Deposited on: | 12 Jun 2014 16:34 |
Last Modified: | 21 Apr 2016 17:28 |