Non-dimensionalization and mixing quantification of laminar twin semi-confined jets

2014 ◽  
Vol 48 ◽  
pp. 15-23 ◽  
Author(s):  
Ian Rafferty ◽  
Deborah Kaminski
Keyword(s):  
Confined Jets

scholarly journals Oscillation of Confined Jets in Continuous Casting Mold Flow

PAMM ◽  
2006 ◽  
Vol 6 (1) ◽  
pp. 527-528 ◽  
Author(s):  
Mirko Javurek ◽  
Raimund Wincor ◽  
Markus Brummayer
Keyword(s):  
Continuous Casting ◽  
Continuous Casting Mold ◽  
Confined Jets ◽  
Casting Mold ◽  
Mold Flow

Characteristics of turbulent confined jets

2008 ◽  
Vol 47 (8) ◽  
pp. 1234-1245 ◽  
Author(s):  
M.T. Kandakure ◽  
V.C. Patkar ◽  
A.W. Patwardhan
Keyword(s):  
Confined Jets

A Large-Eddy Simulation of Bubble-Liquid Jets

2002 ◽  
Author(s):  
M. Yang ◽  
L. X. Zhou ◽  
L. S. Fan
Keyword(s):  
Large Eddy Simulation ◽  
Liquid Jets ◽  
Order Moment ◽  
Two Phase ◽  
Confined Jets ◽  
Bubble Liquid ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Turbulence Generation ◽  
Shear Production

A Large-Eddy Simulation (LES) with a two-way coupling is used to study bubble-liquid two-phase confined jets in a two-dimensional channel. The results show the large-eddy vortex structures of both liquid flow and bubble motion, the shear-generated and bubble-induced liquid turbulence. For comparison, the second-order moment (SOM) modeling was also carried out for the same case. Both LES and SOM results indicate much stronger bubble fluctuation than the liquid fluctuation, the enhancement of liquid turbulence by bubbles even for the higher velocity case. Both shear production and the production due to bubble-liquid interaction are important for the liquid turbulence generation in the case studied. The LES statistical results and the SOM simulation results are in qualitative agreement with each other.

scholarly journals Characteristics of swirling and precessing flows generated by multiple confined jets

2019 ◽  
Vol 31 (5) ◽  
pp. 055102 ◽  
Author(s):  
Shen Long ◽  
Timothy C. W. Lau ◽  
Alfonso Chinnici ◽  
Zhao Feng Tian ◽  
Bassam B. Dally ◽  
...  
Keyword(s):  
Confined Jets

Design of a Quench Device for Synthesis and Hydrolysis of Zn Nanoparticles: Flow Modeling and Experiments

2008 ◽  
Author(s):  
Aiman Alshare ◽  
Tareq Abu Hamed ◽  
Marc Bru¨lhart ◽  
Luke Venstrom ◽  
Jane H. Davidson
Keyword(s):  
Particle Deposition ◽  
Fluid Dynamic ◽  
Tubular Reactor ◽  
Numerical Data ◽  
Confined Jets ◽  
Zinc Nanoparticles ◽  
Modeling And Experiments ◽  
The Impact ◽  
Hydrolysis Of ◽  
Reactor Surface

The synthesis and hydrolysis of zinc nanoparticles are carried out in a tubular reactor. A key component of the reactor is a coaxial jet quench device. Three co-axial and multi-inlet confined jets mix Zn(g), steam and argon to produce and hydrolyze zinc nanoparticles. The performance of the quench device is assessed with computational fluid dynamic modeling and measurements of hydrogen conversion and particle size and composition. Numerical data elucidate the impact of varying jet flow rates on temperature and velocity distributions within the reactor. Experiments produce hydrogen conversions of 61 to 79%. Particle deposition on sections of the reactor surface above 650 K favors hydrolysis. Residence time for in-flight particles is less than one second and these particles are partially hydrolyzed.

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