Three-dimensional stability of vortex arrays in a stratified and rotating fluid [PDF]
, 2011 International audienceThis paper investigates numerically and through an asymptotic approach the three-dimensional stability of steady vertical vortex arrays in a stratified and rotating fluid.
Billant, Paul +2 more
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Numerical Investigation on the Effect of Asymmetry of Flow Velocity on the Wake Vortex of Hydrofoils
Journal of Marine Science and Engineering, 2022 The Karman vortex street is a common flow phenomenon. In hydraulic machinery, it is usually located downstream of the guide vanes and the runner blades, which reduces hydraulic performance and may also cause fatigue damage to the structure.
Xiang Xia +5 more
doaj +1 more source
On high-order pressure-robust space discretisations, their advantages for incompressible high Reynolds number generalised Beltrami flows and beyond [PDF]
, 2019 An improved understanding of the divergence-free constraint for the incompressible Navier--Stokes equations leads to the observation that a semi-norm and corresponding equivalence classes of forces are fundamental for their nonlinear dynamics. The recent
Gauger, Nicolas R. +2 more
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Simulation of incompressible viscous flow using finite element method [PDF]
E3S Web of Conferences, 2023 This study focused on simulating incompressible viscous flow using the finite element method. This study used velocity and pressure as unknowns known as primitive variable formulations.
Dewanto Gamaliel +3 more
doaj +1 more source
Spatial evolution of a quasi-two-dimensional Kármán vortex street subjected to a strong uniform magnetic field [PDF]
, 2015 A vortex decay model for predicting spatial evolution of peak vorticity in a wake behind a cylinder is presented. For wake vortices in the stable region behind the formation region, results have shown that the presented model has a good capability of ...
Ahmad H. A. Hamid +7 more
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Journal of Fluid Science and Technology, 2007 This paper describes an experimental investigation of the transitional mechanism of a wake generated behind a thin airfoil with a small angle of attack in a towing wind tunnel.
Toshiyuki MORITA, Hiroshi MAEKAWA
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Inhomogeneous dominance patterns of competing phytoplankton groups in the wake of an island [PDF]
Nonlinear Processes in Geophysics, 2010 We investigate the competition between two different functional groups of phytoplankton in the wake of an island close to a coastal upwelling region. We couple a simple biological model with three trophic levels and a hydrodynamic model of a von Kármán ...
D. Bastine, U. Feudel
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Cross-Platform GPU-Based Implementation of Lattice Boltzmann Method Solver Using ArrayFire Library
Mathematics, 2021 This paper deals with the design and implementation of cross-platform, D2Q9-BGK and D3Q27-MRT, lattice Boltzmann method solver for 2D and 3D flows developed with ArrayFire library for high-performance computing.
Michal Takáč, Ivo Petráš
doaj +1 more source
The fish Strouhal number as a criterion for hydraulic fishway design [PDF]
, 2017 Longitudinal river fragmentation through physical barriers is a major issue for the conservation of aquatic species in regions with intense hydropower development, such as Chile.
Arriagada, Pedro +7 more
core +1 more source
, 2008 The vortex streets produced by a flapping foil of span-to-chord aspect ratio of 4:1 are studied in a hydrodynamic tunnel experiment. In particular, the mechanisms giving rise to the symmetry breaking of the reverse B\'enard-von K\'arm\'an vortex street ...
CATHERINE MARAIS +4 more
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