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The control of laminar separation bubbles using high- and low-amplitude forcing
Cita
Simens, Mark Phil and Jiménez Sendín, Javier 
ORCID: https://orcid.org/0000-0003-0755-843X
(2008).
The control of laminar separation bubbles using high- and low-amplitude forcing.
En: "IUTAM Symposium on Flow Control and MEMS", 19-22 September 2006, Imperial College, London, England. pp. 191-197.
https://doi.org/10.1007/978-1-4020-6858-4_22.
ORCID: https://orcid.org/0000-0003-0755-843X
(2008).
The control of laminar separation bubbles using high- and low-amplitude forcing.
En: "IUTAM Symposium on Flow Control and MEMS", 19-22 September 2006, Imperial College, London, England. pp. 191-197.
https://doi.org/10.1007/978-1-4020-6858-4_22.
Descripción
| Título: | The control of laminar separation bubbles using high- and low-amplitude forcing |
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| Autor/es: |
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| Tipo de Documento: | Ponencia en Congreso o Jornada (Artículo) |
| Título del Evento: | IUTAM Symposium on Flow Control and MEMS |
| Fechas del Evento: | 19-22 September 2006 |
| Lugar del Evento: | Imperial College, London, England |
| Título del Libro: | IUTAM Symposium on Flow Control and MEMS. Proceedings of the IUTAM Symposium |
| Fecha: | 1 Diciembre 2008 |
| Volumen: | 7 |
| Materias: | |
| ODS: | |
| Palabras Clave Informales: | Boundary layers; Control; flow separation; Instability; Kelvin-Helmholtz; Reattachment; separated flow; strong forcing; Turbulent; Vortex shedding |
| 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
Two-dimensional simulations are used to demonstrate the existence of two different amplitude regimes to control laminar separation bubbles with periodic zero-mass-flux wall jets. One is based primarily on a shear-layer instability found using low-amplitude forcing. The minimum bubble length is obtained for a Strouhal number approximately equal to 0.018, based on a properly defined momentum thickness. Higher forcing is found to create large vortices, which are responsible for very effective control. A relation is presented between the forcing parameters and the size of the vortices. These estimates are then used to explain the range of effective frequencies to control the separation bubble.
Más información
| ID de Registro: | 89141 |
|---|---|
| Identificador DC: | https://oa.upm.es/89141/ |
| Identificador OAI: | oai:oa.upm.es:89141 |
| URL Portal Científico: | https://portalcientifico.upm.es/es/ipublic/item/5509774 |
| Identificador DOI: | 10.1007/978-1-4020-6858-4_22 |
| URL Oficial: | https://link.springer.com/chapter/10.1007/978-1-40... |
| Depositado por: | iMarina Portal Científico |
| Depositado el: | 22 May 2025 10:34 |
| Ultima Modificación: | 22 May 2025 10:34 |
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