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The Full Non-linear Vortex Tube-Vorton Method: the pre-stall condition

Pimentel-Garcia, Jesus Carlos

Advances in aerodynamics, 2024-12, Vol.6 (1), p.13-32, Article 13 [Periódico revisado por pares]

Singapore: Springer Nature Singapore

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  • Título:
    The Full Non-linear Vortex Tube-Vorton Method: the pre-stall condition
  • Autor: Pimentel-Garcia, Jesus Carlos
  • Assuntos: Aerospace Technology and Astronautics ; Detached flow ; Engineering ; Finite volume method ; Fluid dynamics ; Low aspect ratio aerodynamics ; Meshless methods ; Simulation ; Turbulence models ; Velocity ; Viscosity ; Vortex filament method ; Vortex methods ; Vortices ; Vorton method
  • É parte de: Advances in aerodynamics, 2024-12, Vol.6 (1), p.13-32, Article 13
  • Descrição: The present hybrid vortex tube-vorton method is based entirely on the Full Multi-wake Vortex Lattice Method (FMVLM) concepts, which means detaching vorticity with precise vortex strength and orientation along all separation lines between each discretized element of a shell-body, including all external edges. Since the classic Vortex Particle Method (VPM) is unstable by itself because it does not conserve the total amount of circulation as time evolves (Kelvin’s circulation theorem), an isolated Vortex (regularized) Filament Method (VFM) approach is implemented to obtain advection of vorticity, while the induced velocity field is obtained through its corresponding full vorton cloud. Further, a novel vortex squeezing/stretching scheme for such a vortex cylinder-sphere approach is proposed based on variation in time for vortex volumes in order to precisely (zero residual) conserve both circulation and vorticity at each time step (for each detached vortex element), while the viscous effect can be accounted for via the Core Spreading Method (CSM).
  • Editor: Singapore: Springer Nature Singapore
  • Idioma: Inglês

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