Results 11 to 20 of about 69,758 (261)

Experimental and Numerical Study on the Flow Characteristics of Synthetic Jets

open access: yesJournal of Fluid Science and Technology, 2011
Over the last decade, several studies have investigated synthetic jets. However, there are still many clarifications needed, including details of the structure and Coanda effect of synthetic jets.
Koichi NISHIBE   +4 more
doaj   +1 more source

On the use of the Stokes number to explain frictional tidal dynamics and water column structure in shelf seas [PDF]

open access: yesOcean Science, 2013
In recent years coastal oceanographers have suggested using the "Strouhal" number or its inverse, the "Stokes" number, to describe the effect of bottom boundary layer turbulence on the vertical structure of both density and currents. These are defined as
A. J. Souza
doaj   +1 more source

Stokes flow in lid-driven cavity under inclined magnetic field

open access: yesArchives of Mechanics, 2022
Stokes flow in a lid-driven cavity under the effect of an inclined magnetic field is studied. The radial basis function (RBF) approximation is employed to the magnetohydrodynamic (MHD) equations which include Navier–Stokes equations of fluid dynamics and
M. Gürbüz-Çaldağ, E. Çelik
doaj   +1 more source

Enhancement of heat transfer in a synthetic jet actuated by piston cylinder

open access: yesAdvances in Mechanical Engineering, 2021
Modern electronics demand more powerful cooling systems due to an increase in heat dissipation. The traditional cooling techniques reached their limit and the synthetic jet impingement arises as a promising method for cooling of modern electronic systems.
Arun Jacob, KA Shafi, KE Reby Roy
doaj   +1 more source

Influences of Turbulence Characteristic on the Dispersion Behavior of Droplets in the Spray Flame

open access: yesJournal of Thermal Science and Technology, 2008
The authors investigated the effect of the turbulence of an air current on droplet dispersion in a spray flame. Wire meshes of different mesh sizes were inserted behind a two-fluid type nozzle each time to vary the air current turbulence characteristics,
Seiichi TAKEUCHI, Noriyoshi DOUHARA
doaj   +1 more source

Observation of aerosol particle capturing behavior near gas-liquid interface

open access: yesMechanical Engineering Journal, 2020
An aerosol particle capturing by a gas-liquid interface has been applied in many industries. One example of this is the radioactive aerosol removal system in the safety system of the nuclear reactor such as filtered venting system.
Shinichiro UESAWA, Hiroyuki YOSHIDA
doaj   +1 more source

A nonperturbative approximation for the moderate Reynolds number Navier–Stokes equations [PDF]

open access: yesProceedings of the National Academy of Sciences, 2009
The nonlinearity of the Navier–Stokes equations makes predicting the flow of fluid around rapidly moving small bodies highly resistant to all approaches save careful experiments or brute force computation. Here, we show how a linearization of the Navier–Stokes equations captures the drag-determining features of the flow and allows simplified or ...
Roper, Marcus, Brenner, Michael P.
openaire   +2 more sources

Particle Dispersion and Coherent Fine Scale Eddies in Turbulence

open access: yesJournal of Fluid Science and Technology, 2008
Direct numerical simulations of homogeneous isotropic turbulence laden with particles have been conducted to clarify the relationship between particle dispersion and coherent fine scale eddies in turbulence.
Makoto SATO   +2 more
doaj   +1 more source

Identification of a particle collision as a finite-time blowup in turbulence

open access: yesScientific Reports, 2023
We propose an Eulerian approach to investigate the motion of particles in turbulence under the assumption that the motion of particles remains smooth in space and time until a collision between particles occurs. When the first collision happens, particle
Seulgi Lee, Changhoon Lee
doaj   +1 more source

Visualization of synthetic jets at higher Stokes numbers [PDF]

open access: yesEPJ Web of Conferences, 2012
Visualization of synthetic jets at higher Stokes numbers (S = 90 and 127) by the phase-locked smoke-wire technique is presented and discussed. The working fluid is air. The Reynolds numbers are quantified using hot-wire anemometry. Although our method of visualization essentially provides only qualitative results, the present study also demonstrates ...
Trávníček Zdeněk   +2 more
openaire   +2 more sources

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