Results 21 to 30 of about 17,682 (305)

Annular impinging jet with recirculation zone expanded by acoustic excitation [PDF]

open access: yes, 2004
Flow visualization and mass transfer (naphthalene sublimation) experiments were performed on acoustically excited annular air jet with diameter ratio Di/Do=0.95.
Tesar, V., Trávnícek, Z.
core   +1 more source

Numerical Study of the Normal Impinging Water Jet at Different Impinging Height, Based on Wray–Agarwal Turbulence Model

open access: yesEnergies, 2020
As a kind of water jet technology with strong impinging force and simple structure, the submerged impinging water jet can produce strong scouring action on subaqueous sediments.
Hongliang Wang   +4 more
doaj   +1 more source

Annular synthetic jet used for impinging flow mass-transfer [PDF]

open access: yes, 2003
An annular synthetic jet was investigated experimentally, both with and without an opposing impingement wall. The experiments involved smoke visualization and mass transfer measurement on the wall by means of naphthalene sublimation technique.
Amitay   +15 more
core   +1 more source

Impinging jets – a short review on strategies for heat transfer enhancement

open access: yesE3S Web of Conferences, 2018
In industrial applications, heat and mass transfer can be considerably increased using impinging jets. A large number of flow phenomena will be generated by the impinging flow, such as: large scale structures, large curvature involving strong shear and ...
Nastase Ilinca, Bode Florin
doaj   +1 more source

Computational study of the application of Al2O3 nanoparticles to forced convection of high-Reynolds swirling jets for engineering cooling processes

open access: yesEngineering Applications of Computational Fluid Mechanics, 2021
Numerical modeling of turbulent impinging swirling jets involve complex flow physics that make their computation still very challenging. Thus, the literature on computational modeling of these nanofluid jets is really scarce, with most works on laminar ...
F.-J. Granados-Ortiz   +2 more
doaj   +1 more source

Presence and properties of acoustic peaks near the nozzle of impinging rocket jets

open access: yesActa Acustica, 2022
The presence and properties of acoustic peaks near the nozzle of impinging rocket jets have been investigated. Four jets at a Mach number of 3.1 impinging on a plate at a distance L = 15r0, 20r0, 25r0 and 30r0 from the nozzle, where r0 is the nozzle ...
Varé Mathieu, Bogey Christophe
doaj   +1 more source

Large-scale instabilities in a STOVL upwash fountain [PDF]

open access: yes, 2005
The fountain flow created by two underexpanded axisymmetric, turbulent jets impinging on a ground plane was studied through the use of laser-based experimental techniques. Velocity and turbulence data were acquired in the jet and fountain flow regions
Cabrita, P. M.   +2 more
core   +1 more source

Hybrid RANS/LES of plane impinging jets with k-omega based models [PDF]

open access: yes, 2010
Plane impinging jets with nozzle-plate distances H/B=10 at Re=13500 and H/B=9.2 at Re=20000 are simulated with k-omega based hybrid RANS/LES models. Three ways of substitution of the turbulent length scale by the local grid size in the LES mode of the ...
Dick, Erik, Kubacki, Slawomir
core   +2 more sources

On the vortical structure in a plane impinging jet [PDF]

open access: yesJournal of Fluid Mechanics, 2001
The vortical structure of a plane impinging jet is considered. The jet was locked both in phase and laterally in space, and time series digital particle image velocimetry measurements were made both of the jet exiting the nozzle and as it impinged on a perpendicular wall.
Sakakibara, Jun   +2 more
openaire   +3 more sources

The Process of Plunge Pool Bed Form Changes by a Vertical Jet Impinging Upon Non-Cohesive Sediment [PDF]

open access: yesعلوم و مهندسی آبیاری, 2017
The scour process induced by plunging jets is an important topic for hydraulic engineers. It is important to forecast the various scour hole characteristics for avoiding the failure of a hydraulic structure.
Akbar Armaghani   +2 more
doaj   +1 more source

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