Monomode Fibre Optic Vortex Shedding Flowmeter
SPIE Proceedings, 1984 The use of a monomode optical fibre sensing element in the measurement of flow velocities by an interferometric technique is described, in which the operating principle is the flow induced oscillation of the fibre caused by vortex shedding. The system has been demonstrated to show a linear response with water flows in the Reynolds number range 100–3500.
P. Akhavan Leilabady +4 more
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Hysteresis in quantized vortex shedding [PDF]
Physical Review A, 2014 It is shown using numerical simulations that flow patterns around an obstacle potential moving in a superfluid exhibit hysteresis. In a certain velocity region, there is a bistability between stationary laminar flow and periodic vortex shedding. The bistability exists in two and three dimensional systems.
Kadokura, Tsuyoshi +2 more
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Investigation into the Strouhal numbers associated with vortex shedding from parallel-plate thermoacoustic stacks in oscillatory flow conditions [PDF]
, 2010 This paper investigates vortex shedding processes occurring at the end of a stack of parallel plates, due to an oscillating flow induced by an acoustic standing wave.
Jaworski, Arthur J. +2 more
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Investigation of a drag reduction on a circular cylinder in rotary oscillation [PDF]
, 2001 Drag reduction in two-dimensional flow over a circular cylinder, achieved using rotary oscillation, was investigated with computational simulations. In the experiments of Tokumaru & Dimotakis (1991), this mechanism was observed to yield up to 80% drag ...
Leonard, A., Shiels, D.
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Applied Sciences, 2019 Unsteady excitation has proved its effectiveness in separation flow control and has been extensively studied. It is observed that disordered shedding vortices in compressors can be controlled by unsteady excitation, especially when the excitation ...
Mingming Zhang, Anping Hou
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Kármán vortex street in a two-component Bose–Einstein condensate
New Journal of Physics, 2019 Vortex shedding from a moving obstacle potential in a two-component Bose–Einstein condensate is investigated numerically. For a miscible two-component condensate composed of ^23 Na and ^87 Rb atoms, in the wake of obstacle, the Kármán vortex street is ...
Xiao-Lin Li +6 more
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Flow visualization observation of the interference vortex flow from a pair of square cylinders
Journal of Fluid Science and Technology, 2023 In order to investigate the aspect of the mutual interference flow from two square cylinders, the visual water-flow observation experiment was performed. In the experiment, the pitch ratio L/d and the arrangement angle α were made into the parameter, and
Yoshifumi YOKOI
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The onset of unsteadiness of two-dimensional bodies falling or rising freely in a viscous fluid: a linear study [PDF]
, 2011 We consider the transition between the steady vertical path and the oscillatory path of two-dimensional bodies moving under the effect of buoyancy in a viscous fluid.
Assemat, Pauline +2 more
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Aeolian tone radiated from a circular cylinder with solid spiral fin in cross flow
Journal of Fluid Science and Technology, 2014 This study focuses on the characteristics of the Aeolian tone and Karman vortex shedding from a circular cylinder with a solid spiral fin. The fin pitch ratios range from 0.11 to 0.80.
Hiromitsu HAMAKAWA +6 more
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Periodic shedding of vortex dipoles from a moving penetrable obstacle in a Bose-Einstein condensate
, 2015 We investigate vortex shedding from a moving penetrable obstacle in a highly oblate Bose-Einstein condensate. The penetrable obstacle is formed by a repulsive Gaussian laser beam that has the potential barrier height lower than the chemical potential of ...
Kwon, Woo Jin +2 more
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