Listar por autor "García-Ortiz, José Hermenegildo"
Mostrando ítems 1-8 de 8
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A complementary numerical and experimental study of the influence of Reynolds number on theoretical models for wingtip vortices
García-Ortiz, José Hermenegildo; Domínguez-Vázquez, Adrián; Serrano-Aguilera, Juan José
; Parras-Anguita, Luis; Del-Pino-Peñas, Carlos Manuel (Elsevier, 2019-02)
We present a detailed analysis of experimental and numerical results for the flow of trailing vortices behind a NACA0012 wing model. Particular attention is paid to a specific value of the angle of attack, α=9°, and ultra-low ... -
Active control of trailing vortices by synthetic jets in the axial direction near the wingtip.
Del-Pino-Peñas, Carlos Manuel; Parras-Anguita, Luis; García-Ortiz, José Hermenegildo; Aguilar-Cabello, Jorge; Blanco-Rodríguez, Francisco José; Gutiérrez-Castillo, Paloma[et al.] (2024)
We applied an oscillating synthetic jet in the axial direction to a wingtip vortex and observed a decrease in its strength (active control, synthetic jets, wingtip vortex). -
Effect of the axial jet on the optimal response in Batchelor vortex
Blanco-Rodríguez, María José; García-Ortiz, José Hermenegildo; Parras-Anguita, Luis; Del-Pino-Peñas, Carlos Manuel (2015-09-25)
En este póster se estudia la respuesta óptima del torbellino de Batchelor para distintos números de onda. Se demuestra que incluso teniendo la velocidad axial, un torbellino es capaz de tener grandes amplificaciones de energía. -
Experimental characterization of wingtip vortices using smoke flow visualizations
Serrano-Aguilera, Juan José; García-Ortiz, José Hermenegildo; Gallardo-Claros, Alejandro; Parras-Anguita, Luis; Del-Pino-Peñas, Carlos Manuel (2016-07-20)
In order to predict the axial development of the wingtip vortices strength an accurate theoretical model is required. Several experimental techniques have been used to that end, e.g. PIV or hotwire anemometry, but they ... -
Higher order dynamic mode decomposition of an experimental trailing vortex
Gutiérrez-Castillo, Paloma; Garrido-Martín, Manuel; Bölle, Tobias; García-Ortiz, José Hermenegildo; Aguilar-Cabello, Jorge; Del-Pino-Peñas, Carlos Manuel[et al.] (AIP, 2022-10-27)
The decay of trailing vortices is a fundamental problem in fluid mechanics and constitutes the basis of control applications that intend to alleviate the wake hazard. In order to progress, we use the recently developed ... -
Influence of Reynolds number on theoretical models for trailing vortices
Domínguez-Vázquez, Adrián; García-Ortiz, José Hermenegildo; Serrano-Aguilera, Juan José; Parras-Anguita, Luis; Del-Pino-Peñas, Carlos Manuel (2015-07-09)
We conduct direct numerical simulations for a NACA0012 airfoil at Reynolds numbers (Re) ranging from 300 to 7000 to determine the wake behavior behind this wing profile. We characterize the structure of the wing-tip vortex, ... -
Nonlinear evolution of harmonically forced perturbations on a wingtip vortex
García-Ortiz, José Hermenegildo; Parras-Anguita, Luis; Diamessis, Peter; Del-Pino-Peñas, Carlos Manuel (2016-09-19)
Wingtip vortices are created by flying airplanes due to lift generation. The vortex interaction with the trailing aircraft has sparked researchers’ interest to develop an efficient technique to destroy these vortices. ... -
Wingtip vortex in a NACA0012 airfoil and its active control
García-Ortiz, José Hermenegildo; Blanco-Rodríguez, María José; Parras-Anguita, Luis; Del-Pino-Peñas, Carlos Manuel (2015-09-09)
We conduct experiments in a towing-tank to analyse the flow patterns of wingtip vortices in a NACA 0012 airfoil. In this experimental research, we provide PIV measurements and flow visualisations. Without active control, ...