Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
Journal of Flow Visualization and Image Processing
SJR: 0.11 SNIP: 0.312 CiteScore™: 0.1

ISSN Imprimer: 1065-3090
ISSN En ligne: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.2015013527
pages 243-260

EXPERIMENTAL INVESTIGATION OF 2D FLEXIBLE PLUNGING HYDROFOIL

Ruijun Tian
New Mexico State University, Las Cruces, NM 88003
Robert Mitchell
New Mexico State University, Las Cruces, NM 88003
Leonardo Martin-Alarcon
New Mexico State University, Las Cruces, NM 88003
Fangjun Shu
Department of Mechanical and Aerospace Engineering New Mexico State University MSC 3450, P.O. Box 30001, Las Cruces, NM 88003-8001

RÉSUMÉ

It has long been hypothesized that the flight of birds and insects greatly benefits from the flexibility and morphing facility of their wings. A significant advantage that flapping flexible wing models have over quasi-steady rigid wing models was a much higher lift generation capability. Both experimental and computational studies have shown that the leading edge vortex (LEV) plays an important role in this higher lift generation. In this study, we further explore the internal mechanisms behind the production of these high lift forces. Two NACA0012 miniature wings, one flexible and one rigid, were actively plunged at various frequencies in a viscous glycerol-water solution. Two-dimensional, phase-locked particle image velocimetry (PIV) measurements were conducted to investigate the evolution of vortices. Simultaneous measurements of lift and thrust forces were taken during plunging to reveal the relationship between the force generation and the surrounding flow field. Results from the flexible hydrofoil were compared directly to results from the rigid one to reveal the influence of flexibility. These results can be used to benchmark future computational work.


Articles with similar content:

Computational and Experimental Analysis of Effect of Leading Edge of a Delta Wing in Laminar and Turbulent Flows
Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Vol.0, 2017, issue
Ramakrishna Madhira, Senthil Kumar C
Shear Stress and Shear-Induced Particle Residence in Stenosed Blood Vessels
International Journal for Multiscale Computational Engineering, Vol.6, 2008, issue 2
Lucy T. Zhang
VORTEX METHOD SIMULATION OF BLASIUS' FLAT-PLATE BOUNDARY LAYER
Computational Thermal Sciences: An International Journal, Vol.6, 2014, issue 6
Gustavo C. R. Bodstein, Helaine C. Santos, Victor S. Santiago
NUMERICAL STUDY OF UNSTEADY AIRFLOW PHENOMENA IN A VENTILATED ROOM
Computational Thermal Sciences: An International Journal, Vol.4, 2012, issue 4
Kana Horikiri, Yufeng Yao, Jun Yao
THERMAL AND FLUID CHARACTERISTICS OF SINGLE FIN HEAT SINK WITH A PIEZOELECTRIC COOLING FAN
Journal of Flow Visualization and Image Processing, Vol.26, 2019, issue 1
Hung-Yi Li, Tsung-Sheng Sheu, Chao Cheng, Heng-Pin Hsu, Herchang Ay