Results 21 to 30 of about 16,312 (221)

An inviscid model for the vortex-street wake [PDF]

open access: yes, 1982
An inviscid model for the Karman vortex street, containing vortices of uniform vorticity surrounded by irrotational fluid, is related to the wake behind a bluff body by a global analysis requiring the conservation of momentum, energy and vorticity.
Saffman, P. G., Schatzman, J. C.
core   +1 more source

Detailed Wake Structure behind an Elastic Airfoil

open access: yesJournal of Fluid Science and Technology, 2009
An unsteady flow in a low Reynolds number region attracts attention in recent years. The authors measured vortex flow in the wake of the rigid flat plate, rigid NACA0010, elastic flat plate and elastic NACA0010 with heaving motions and evaluated ...
Masaki FUCHIWAKI   +2 more
doaj   +1 more source

Suppression of von K\'arm\'an vortex streets past porous rectangular cylinders [PDF]

open access: yes, 2018
Although the stability properties of the wake past impervious bluff bodies have been widely examined in the literature, similar analyses regarding the flow around and through porous ones are still lacking.
Camarri, Simone   +4 more
core   +3 more sources

Stability of a vortex street of finite vortices [PDF]

open access: yes, 1982
The stability of the finite-area Kármán ‘vortex street’ to two-dimensional disturbances is determined. It is shown that for vortices of finite size there exists a finite range of spacing ratio κ for which the array is stable to infinitesimal disturbances.
Saffman, P. G., Schatzman, J. C.
core   +1 more source

Periodic Vortex Streets and Complex Monodromy [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
The explicit constructions of periodic and doubly periodic vortex relative equilibria using the theory of monodromy-free Schrödinger operators are described. Several concrete examples with the qualitative analysis of the corresponding travelling vortex streets are given.
Hemery, Adrian D., Veselov, Alexander P.
openaire   +3 more sources

In-street wind direction variability in the vicinity of a busy intersection in central London [PDF]

open access: yes, 2010
We present results from fast-response wind measurements within and above a busy intersection between two street canyons (Marylebone Road and Gloucester Place) in Westminster, London taken as part of the DAPPLE (Dispersion of Air Pollution and Penetration
A Dobre   +53 more
core   +1 more source

Mechanism of momentum transportation in the intermediate wake of a heated cylinder

open access: yesNihon Kikai Gakkai ronbunshu, 2020
Measurements in the wake of a heated cylinder are made by a thermo-anemometer. The purpose is to make clear the effects of buoyancy of heated cylinder on the mechanism of momentum transportation in the wake.
Hideaki WATANABE   +2 more
doaj   +1 more source

Investigation into the Strouhal numbers associated with vortex shedding from parallel-plate thermoacoustic stacks in oscillatory flow conditions [PDF]

open access: yes, 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
core   +1 more source

HY-1C/D Reveals the Chlorophyll-a Concentration Distribution Details in the Intensive Islands’ Waters and Its Consistency with the Distribution of Fish Spawning Ground

open access: yesRemote Sensing, 2022
Chlorophyll-a (Chl-a) change details derived from HY-1C/D images in the waters of the Zhoushan archipelago were analyzed. A new Chl-a inverse model was built based on the relationship between the in situ Chl-a and the combination of red, blue and green ...
Lina Cai   +4 more
doaj   +1 more source

Comparative study of wall shear stress at the ascending aorta for different mechanical heart valve prostheses [PDF]

open access: yes, 2019
An experimental study is reported which investigates the wall shear stress (WSS) distribution in a transparent model of the human aorta comparing a bileaflet mechanical heart valve (BMHV) with a trileaflet mechanical heart valve (TMHV) in physiological ...
Bruecker, C., Li, Q.
core   +1 more source

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