Results 1 to 10 of about 2,249 (153)

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   +2 more sources

Long Wave Flow Interaction with a Single Square Structure on a Sloping Beach [PDF]

open access: yesJournal of Marine Science and Engineering, 2015
In the context of dam breaks, tsunami, and flash floods, it is paramount to quantify the time-history of forces by the rapidly transient flow to vertical structures and the characteristics of the induced flow patterns. To resemble on-land tsunami-induced
Gian C. Bremm   +3 more
doaj   +4 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

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

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   +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

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

The Atmospheric Vortex Streets and Their Impact on Precipitation in the Wake of the Tibetan Plateau

open access: yesAtmosphere, 2023
Atmospheric vortex streets (AVSs) are often observed in the wake of the leeward side of mountainous islands and are considered atmospheric analogs of the classic Kármán vortex street when a fluid flows past a cylindrical obstacle.
Qi Liu   +4 more
doaj   +1 more source

Numerical investigation of the wake transition and aerodynamic efficiency of the two-dimensional propulsive wing

open access: yesAIP Advances, 2022
The propulsive wing is a new concept wing of automatic propulsion with high lift coefficients and has great application value in plant protection and forest fire control. The propulsive wing wake is a reverse Bénard–von Kármán (RBvK) vortex street, which
Jiaxin Lu   +3 more
doaj   +1 more source

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