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Mostrando ítems 1-6 de 6
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A strongly-coupled model for flexible rotors
Durán Venegas, Eduardo; Le Dizès, Stéphane; Eloy, Christophe (Elsevier, 2019)A fluid–structure model describing the equilibrium state of a flexible blade rotor with its own wake is derived for various external axial flow conditions. The model is based on three building blocks. The two-dimensional ... -
Closely spaced co-rotating helical vortices: General solutions
Castillo Castellanos, Andrés; Le Dizès, Stéphane; Durán-Venegas, Eduardo (American Physics Society, 2021)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 ... -
Generalized helical vortex pairs
Durán-Venegas, Eduardo; Le Dizès, Stéphane (Cambridge University Press, 2019)New solutions describing the interaction of helical pairs of counter-rotating vortices are obtained using a vortex filament approach. The vortices are assumed to have a small core size allowing the calculation of the ... -
Joukowski’s wake model for tip-splitting rotors.
Castillo Castellanos, Andrés; Durán-Venegas, Eduardo; Le Dizès, Stéphane (IOP Publishing, 2021)The interaction between a tip vortex and a solid surface is responsible for premature structural component fatigue in wind turbines and undesirable noise in helicopter rotors during low speed and descending flight. One ... -
Structure and stability of Joukowski’s rotor wake model.
Durán Venegas, Eduardo; Le Dizès, Stéphane; Rieu, Pierre (Cambridge University Press, 2021-01-25)In this work, Joukowski’s rotor wake model is considered for a two-blade rotor of radius Rb rotating at the angular velocity ΩR in a normal incident velocity V∞. This model is based on a description of the wake by a limited ... -
Structure and stability of rotor generated vortices
Durán Venegas, Eduardo; Le Dizès, Stéphane (European Mechanics Society, 2018)We study the structure and stability of the vortical wake generated by a two-blade Joukowski rotor of radius Rb, rotating at angular velocity ⌦ in an axial wind of velocity V1. In this rotor model, each blade is assumed ...