Results 31 to 40 of about 739 (180)
Exact solutions for submerged von Kármán point vortex streets cotravelling with a wave on a linear shear current [PDF]
New exact solutions are presented to the problem of steadily travelling water waves with vorticity wherein a submerged von Kármán point vortex street cotravels with a wave on a linear shear current. Surface tension and gravity are ignored.
Keeler, Jack S. +6 more
core +1 more source
Observation of von Kármán Vortex Street in an Atomic Superfluid Gas [PDF]
We report on the experimental observation of vortex cluster shedding from a moving obstacle in an oblate atomic Bose-Einstein condensate. At low obstacle velocities v above a critical value, vortex clusters consisting of two like-sign vortices are ...
Joon Hyun Kim +3 more
core +1 more source
Mechanism of heat transportation in the intermediate wake of a heated cylinder
The paper clarifies the effects of buoyancy on the mechanism of heat transfer in the wake of heated cylinder for X/D=5-40. Measurements are made by a thermo-anemometer.
Hideaki WATANABE +2 more
doaj +1 more source
Transition in vortex wakes of flow around an elliptic cylinder
Transition in the wake flow around an elliptic cylinder was numerically investigated at Reynolds numbers (Re) ranging from 3 to 200. The cylinder axis ratio (AR) varies from 0.125 to 8, while its angle of attack (AoA) was examined at 30°, 60°, and 90 ...
V.L. Nguyen, V.D. Duong, L.H. Duong
doaj +1 more source
Dye visualization of the wake of a near-wall particle in response to a periodic oscillation
In turbulent dispersed multiphase flows, the interaction between the particle wake and the ambient turbulent fluctuation can be crucial for the change of the multiphase system.
Xing Li, Haibin Zhang, Bofeng Bai
doaj +1 more source
System identification and particle image velocimetry reveal how a modular robotic fish changes thrust physics across gaits. A traveling‐wave, fish‐like motion draws thrust from resistive drag, while a resonant standing‐wave motion is driven by reactive pressure.
Donghao Li +4 more
wiley +1 more source
Spatio-temporal stability of the Kármán vortex street and the effect of confinement [PDF]
The instability of the Kármán vortex street is revisited under a spatio-temporal perspective that allows the taking into account of the advection of the vortices by the external flow.
Mowlavi, Saviz +2 more
core +1 more source
Design of mine-used wind speed sensor based on DDS technology
In view of problem that performance of mine-used wind speed sensor is easy to fall because of poor working conditions, a kind of mine-used wind speed sensor based on DDS technology was designed.
MIAO Kebin
doaj +1 more source
Hydrodynamic and ecological effects of engineered logjams: Insights from field observations
Drone imaging, LSPIV and electrofishing data quantified restoration effects of engineered logjam at the Emme River (Switzerland). Placement and discharge shaped flow: Side jams created longer wakes, centre jams stronger mixing; and lower discharge intensified gap velocities, whereas wake length remained stable.
Felix Broß +2 more
wiley +1 more source
von Kármán Vortex Street within an Impacting Drop
International audienceThe splashing of a drop impacting onto a liquid pool produces a range of different sized microdroplets. At high impact velocities, the most significant source of these droplets is a thin liquid jet emerging at the start of the ...
Zaleski, Stéphane +11 more
core +1 more source

