Results 1 to 10 of about 4,537 (191)

Mathematical Modeling of the Influence of the Karman Vortex Street on Mass Transfer in Electromembrane Systems [PDF]

open access: yesMembranes, 2023
In electromembrane systems, the transfer of ions near ion-exchange membranes causes concentration polarization, which significantly complicates mass transfer. Spacers are used to reduce the effect of concentration polarization and increase mass transfer.
Aminat Uzdenova   +3 more
doaj   +7 more sources

Simulation of Influence of Mechanical Elements on Karman Vortex Street Parameters [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2019
This work presents the results of numerical modeling of Karman vortex street generation performed with ANSYS/FLUENT package application. The influence of the mechanical elements located downstream of the bluff body on the vortex frequency has been found ...
Grzegorz Pankanin
doaj   +2 more sources

Kinematics and forces of a flexible body in Karman vortex street

open access: yesScience Bulletin, 2009
Experiments of a flexible filament in the wake of a cylinder and in free stream were conducted in a vertical soap film tunnel. The experiments distinctly visualized the movement of the filament. Based on the experimental kinematic results, a 2-d panel method was used to calculate the forces acting on the filament.
Laibing Jia, Xiezhen Yin
exaly   +2 more sources

Study on optimization measures for water level fluctuation of large water conveyance aqueducts. [PDF]

open access: yesPLoS ONE
This paper addresses the issue of water surface fluctuations in aqueducts caused by the Karman Vortex Street phenomenon, which significantly impacts the structural stability and water delivery efficiency of the aqueducts.
Jian Chen   +3 more
doaj   +2 more sources

Experimental Study and Damping Effect Analysis of a New Tuned Liquid Damper Based on Karman Vortex Street Theory

open access: yesBuildings, 2023
In order to solve the shortcomings of traditional TLDs (tuned liquid dampers), such as their narrow frequency bands and their occupation of large amounts of space, based on deep-water theory, a new type of TLD incorporating Karmen vortex street theory is
Hongmei Ren, Qiaoqiao Fan, Zheng Lu
doaj   +3 more sources

Analysis and Prediction of Flow-Induced Vibration of Convection Pipe for 200 t/h D Type Gas Boiler

open access: yesAxioms, 2022
This paper is aimed at the analysis and prediction of the fluid-induced vibration phenomenon in the convection tube bundle area caused by Karman vortex street shedding in the background of a 200 t/h large-capacity D-type gas boiler.
Shouguang Yao   +4 more
doaj   +1 more source

Vortex structure behind highly heated tandem twin cylinders

open access: yesNihon Kikai Gakkai ronbunshu, 2022
Vortex structures behind two highly heated cylinders of equal diameter in tandem arrangements have been investigated experimentally. The experiments were performed under the following conditions: cylinders diameter, D = 4 mm; mean flow velocity of air, U∞
Yuji YAHAGI
doaj   +1 more source

Experimental Investigation of Unsteady Static Pressure Field Behind a Circular Cylinder [PDF]

open access: yesEPJ Web of Conferences, 2022
In this paper a measurement of a static pressure in the wake behind a circular cylinder for the different Reynolds numbers is presented. For this purpose, a static pressure probe with built-in pressure transducer was used.
Suchý Jakub   +2 more
doaj   +1 more source

Dynamics of Particle-Laden Wake Flow in a Karman Vortex Street Considering the Droplet-Vortex Interactions [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
To investigate the dynamics of droplet-vortex interactions in particle-laden Karman vortex street flows, the simulations were carried out by using Euler-Lagrange approach, which was validated by the available experiments and numerical results.
J. Li, C. Wang, H. Ding, H. Sun
doaj   +1 more source

Influence of slip boundary on flow separation and drag of flow past bluff body at high Reynolds numbers

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectivesFlow separation increases the drag and noise of underwater vehicles, and influences the controllability of their control surfaces. Therefore, the influence of slip caused by superhydrophobic surfaces on drag reduction and flow separation is ...
Wei CHEN, Wenjun LENG, Peng HE, Lei WANG
doaj   +1 more source

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