RT Journal Article
T1 Closely spaced co-rotating helical vortices: General solutions
A1 Castillo Castellanos, Andrés
A1 Le Dizès, Stéphane
A1 Durán-Venegas, Eduardo
K1 Movimiento de vórtices
K1 Mecánica de fluídos
AB In this work, we present general solutions for closely spaced co-rotating helical vortices using a filament approach. For these vortex structures, helical symmetry is broken, but solutions maintain a form of spatial periodicity. We show there exists a moving frame where vortex elements move along the structure without distorting it. These solutions can be used to characterize the evolution of the twin-tip vortices produced in the wake of a tip-splitting rotor blade. The resulting wake has a dual nature. Locally, the structure behaves much like an helical pair aligned with the locally tangent flow. However, as we move away from the vortex structure the induced flow is reminiscent of an ‘equivalent’ helical vortex with thicker core.
PB American Physics Society
YR 2021
FD 2021
LK https://hdl.handle.net/10630/37537
UL https://hdl.handle.net/10630/37537
LA eng
NO Physical Review Fluids, 6, 114701. 2021
NO Agence Nationale de la Recherche (Francia, fondos públicos): ANR-17-CE06-0018 Deutsche Forschungsgemeinschaft (Alemania, fondos públicos): 391677260
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026