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Transition to turbulence in two-dimensional Poiseuille flow
Cita
Jiménez Sendín, Javier 
ORCID: https://orcid.org/0000-0003-0755-843X
(1990).
Transition to turbulence in two-dimensional Poiseuille flow.
"Journal of Fluid Mechanics", v. 218
;
pp. 265-297.
ISSN 00221120.
https://doi.org/10.1017/S0022112090001008.
ORCID: https://orcid.org/0000-0003-0755-843X
(1990).
Transition to turbulence in two-dimensional Poiseuille flow.
"Journal of Fluid Mechanics", v. 218
;
pp. 265-297.
ISSN 00221120.
https://doi.org/10.1017/S0022112090001008.
Descripción
| Título: | Transition to turbulence in two-dimensional Poiseuille flow |
|---|---|
| Autor/es: |
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| Tipo de Documento: | Artículo |
| Título de Revista/Publicación: | Journal of Fluid Mechanics |
| Fecha: | 1 Septiembre 1990 |
| ISSN: | 00221120 |
| Volumen: | 218 |
| Materias: | |
| ODS: | |
| Escuela: | E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM) |
| Departamento: | Mecánica de Fluidos y Propulsión Aeroespacial |
| Licencias Creative Commons: | Reconocimiento - Sin obra derivada - No comercial |
Resumen
The transition of strictly two-dimensional Poiseuille flow from laminar to chaotic behaviour is studied through full numerical simulation of spatially periodic channels with fairly large longitudinal aspect ratios. The successive bifurcations are studied in detail and their physical mechanism is elucidated. The Liapunov exponents of the flow are measured and shown to be positive at large Reynolds numbers. Isolated, permanent patches of unsteady behaviour, resembling the turbulent ‘puffs’observed in circular pipes, are found at low Reynolds numbers and shown to be important for the transition to chaos. The flow exhibits several other phenomena present in natural three-dimensional flows, including wall sweeps, ejections, and intermittency.
Más información
| ID de Registro: | 88387 |
|---|---|
| Identificador DC: | https://oa.upm.es/88387/ |
| Identificador OAI: | oai:oa.upm.es:88387 |
| URL Portal Científico: | https://portalcientifico.upm.es/es/ipublic/item/9106742 |
| Identificador DOI: | 10.1017/S0022112090001008 |
| URL Oficial: | https://www.cambridge.org/core/journals/journal-of... |
| Depositado por: | iMarina Portal Científico |
| Depositado el: | 25 Mar 2025 12:55 |
| Ultima Modificación: | 25 Mar 2025 12:55 |
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