| Revista: | Journal of the Brazilian Society of Mechanical Sciences and Engineering |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312370 |
| ISSN: | 1678-5878 |
| Autores: | Sosa, Roberto1 Artana, Guillermo1 Moreau, Eric2 Touchard, Gerard |
| Instituciones: | 1Universidad de Buenos Aires, Laboratorio de Fluidodinamica, Buenos Aires. Argentina 2Universite de Poitiers, Laboratoire d'Etudes Aerodynamiques, Poitiers, Vienne. Francia |
| Año: | 2006 |
| Periodo: | Abr-Jun |
| Volumen: | 28 |
| Número: | 2 |
| Paginación: | 200-207 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental |
| Resumen en inglés | We analyze the modifications of the flow around a NACA 0015 airfoil when the flow is perturbed with an electrohydrodynamic (EHD) actuator. The device used consists of two bare electrodes flush mounted on the surface of the model operated in a discharge regime characterized by the formation of a plasma sheet contouring the body in the interelectrode space. In this study, we analyze the influence on the aerodynamic performance of the airfoil in the middle post stall regime (angle of attack≈20º). The analysis is undertaken with measurements of the surface pressure distribution and of the flow fields with Particle Image Velocimetry technique. The experiments indicate that at moderate Reynolds numbers (150,000<Re<333,000), the actuator enables a reattachment of the flow and reveals an important sensitivity of the middle post stall regime to periodic excitation |
| Disciplinas: | Ingeniería |
| Palabras clave: | Ingeniería de control, Ingeniería mecánica, Flujo, Aerodinámica, Control |
| Keyword: | Engineering, Control engineering, Mechanical engineering, Aerodynamics, Flow, Control, Airfoil |
| Texto completo: | Texto completo (Ver PDF) |
