Results 11 to 20 of about 46,839 (349)
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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Investigation of Fractal Characteristics of Karman Vortex for NACA0009 Hydrofoil
Fractal and Fractional, 2023 A Karman vortex is a phenomenon of fluid flow that can cause fluctuation and vibration. As a result, it leads to fatigue damage to structures and induces safety accidents.
Fangfang Zhang +4 more
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Application of lattice constructions for protection of high-rise chimneys from vortex shedding [PDF]
E3S Web of ConferencesConsideration of vortex shedding response is important for high-rise chimneys when air flow causes strong vibrations of the structure in a certain range of wind speeds when the frequency of natural vibrations of the structure coincides with the frequency
Sergey Saiyan +3 more
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Optimal control of circular cylinder wakes using long control horizons [PDF]
, 2015 The classical problem of suppressing vortex shedding in the wake of a circular cylinder by using body rotation is revisited in an adjoint-based optimal control framework.
Colonius, Tim, Flinois, Thibault L. B.
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Numerical Assessment of Flow Energy Harvesting Potential in a Micro-Channel
Fluids, 2023 A micro-energy harvesting device proposed in the literature was numerically studied. It consists of two bluff bodies in a micro-channel and a flexible diaphragm at its upper wall.
Dimitrios G. Koubogiannis +1 more
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Journal of Marine Science and Engineering, 2023 Cylindrical structures are widely used in offshore and marine engineering, but they may suffer from vortex-induced vibration under the influence of ocean or wave currents, which can lead to severe fatigue damage. In this study, we applied the open-source
Hongwu Zhao, Yeon-Won Lee
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Prediction method of hydrofoil vortex shedding frequency at high Reynolds numbers
Zhongguo Jianchuan Yanjiu, 2019 [Objectives] Flow around hydrofoils under high Reynolds number is always a hot topic in hydrodynamic field due to its complicated principle and difficult calculation. The Discrete Vortex Model (DVM) based on vorticity and stream function formulation is a
Hou Lei +5 more
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Fluids, 2020 Vortex cavitation can appear in the wake flow of hydrofoils, inducing unwanted consequences such as vibrations or unstable behaviors in hydraulic machinery and systems.
Jian Chen, Linlin Geng, Xavier Escaler
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