Results 1 to 10 of about 43,945 (204)
Research on smoke simulation with vortex shedding. [PDF]
PLoS One, 2022 The Lagrangian vortex method has the advantage of producing highly detailed simulations of fluids such as turbulent smoke. However, this method has two problems: the construction of the velocity field from the vorticity field is inefficient, and handling the boundary condition is difficult. We present a pure Lagrangian vortex method, including a nested
Tao R, Ren H, Wang D, Bai X.
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Shedding vortex characteristics analysis of NACA 0012 airfoil at low Reynolds numbers
Energy Reports, 2022 In this paper, the vortex shedding characteristics been numerically simulated for Re = 1 × 104 by computational fluid dynamics (CFD), which caused by flow separation of NACA0012 airfoil.
Jianlong Chang +3 more
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Phenomenon of Alfvénic Vortex Shedding [PDF]
Physical Review Letters, 2010 Generation of Alfvénic (magnetohydrodynamic) vortices by the interaction of compressible plasma flows with magnetic-field-aligned blunt obstacles is modeled in terms of magnetohydrodynamics. It is found that periodic shedding of vortices with opposite vorticity is a robust feature of the interaction in a broad range of plasma parameters: for plasma ...
Gruszecki, M. +3 more
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Numerical Simulation on Vortex Shedding from a Hydrofoil in Steady Flow
Journal of Marine Science and Engineering, 2020 This paper presents a numerical modeling procedure for the idealization of vortex shedding effects in the wake flow field of a NACA0009 hydrofoil. During the simulation, the lift and drag acting on the hydrofoil were monitored, and the vortex-shedding ...
Jian Hu +5 more
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Vortex evolution near the Coanda surface of a circulation control airfoil with pulsed actuation
AIP Advances, 2022 A special vortex evolution process was found near the Coanda surface for circulation control airfoil with pulsed actuation. For the jet-on process, two successive shedding vortices from the lower lip edge and the separation vortex on the Coanda surface ...
Quanbing Sun +4 more
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Applied Sciences, 2020 This work focuses on flow past a circular cylinder at a subcritical Reynolds number. Although this classical study has been a concern for many years, it is still a challenging task due to the complexity of flow characteristics.
Zhongying Xiong, Xiaomin Liu
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Vortex streets to the lee of Madeira in a kilometre-resolution regional climate model [PDF]
Weather and Climate Dynamics, 2023 Atmospheric vortex streets are a widely studied dynamical effect of isolated mountainous islands. Observational evidence comes from case studies and satellite imagery, but the climatology and annual cycle of vortex shedding are often poorly understood ...
Q. Gao +8 more
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Structure and Topology Analysis of Separated Vortex in Forward-Swept Blade
Frontiers in Energy Research, 2021 Flow separation commonly affects the stability of turbomachines, especially under low-flowrate conditions. Compared with conventional blades, a forward-swept blade is more efficient at high flowrates.
D. Liang +4 more
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Discrete-vortex analysis of high Reynolds number flow past a rotating cylinder
AIP Advances, 2020 Flow past a rotating cylinder is investigated using a two-dimensional discrete vortex simulation method in this study. The simplified Navier–Stokes equation is solved based on the relationship between the surface pressure gradient and the generated ...
Wei Chen +5 more
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Vortex shedding from tandem cylinders [PDF]
Experiments in Fluids, 2018 An experimental investigation is conducted on the ow around tandem cylinders for ranges of diameter ratio d/D = 0.25–1.0, spacing ratio L/d = 5.5–20, and Reynolds number Re = 0.8 × 104–2.42 × 104, where d and D are the diameters of the upstream and downstream cylinders, respectively, L is the distance from the upstream cylinder center to the forward ...
Md. Mahbub Alam +4 more
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