RT Journal Article
T1 On the influence of spanwise deformation on lift coefficient and trailing vortices properties at low Reynolds number
A1 Solís, Pedro
A1 Garrido-Martín, Manuel
A1 Durán, Eduardo
A1 Gutiérrez-Castillo, Paloma
A1 Del-Pino-Peñas, Carlos Manuel
K1 Aerodinámica
AB We conducted experiments using a single non-deformed and two spanwise deformed wing models for a constant chordbasedReynolds number, Re = 20×103. We carried out all experiments to consider several angles of attack α lowerthan the stall value. The lift forces between non-deformed and spanwise deformed wings present differences dependingon the angle of attack. A first finding of the experimental study is that, for smaller values of the angle of attack e.g.α=4◦ , the non-deformed wing case has higher lift values than the highest spanwise deformed wing. However, forlarger values of the angle of attack, such as α=8◦ , we found a higher lift for the spanwise deformed case. Additionally,velocity fields of the trailing vortex have been taken by two-dimensional particle image velocimetry, finding that boththeoretical models by [G. K. Batchelor, J. Fluid Mech. 20, 645, (1964)] and by [D. W. Moore and P. G. Saffman, Proc.R. Soc. London, Ser. A 333, 491 (1973)] can be fitted to experimental measurements obtained from non-deformed andspanwise deformed wing models, the latter model giving the best results for all angles of attack. Finally, we computedthe circulation of the trailing vortex using two different methods with the same result, and observing that this estimatedcirculation level directly correlates with the measurement of the lift force.
PB AIP Publishing
YR 2024
FD 2024-03-07
LK https://hdl.handle.net/10630/35810
UL https://hdl.handle.net/10630/35810
LA eng
NO P. Solis, M. Garrido-Martin, E. Duran, P. Gutierrez-Castillo, C. del Pino; On the influence of spanwise deformation on lift coefficient and trailing vortices properties at low Reynolds number. Physics of Fluids 1 March 2024; 36 (3): 037122. https://doi.org/10.1063/5.0195188
NO Funding for open access charge: Universidad de Málaga.  This work was supported in part by the Ministerio de Ciencia e Innovación of Spain (Grant No. PID2021-124692OA-I00).
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026