Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Criteria for measuring mixing performance in a vessel with a rising free surface

Criteria for measuring mixing performance in a vessel with a rising free surface A PLIF technique is described which enables the measurement of mixing performance in a 0.06 m square section vessel as the vessel is filled using a vertical dip pipe. The liquids used were Newtonian aqueous solutions of glycerol (μ = 3–12 mPa s); the values of Reynolds number of the entry jet ranged from 343 to 3,735. The vessel was initially charged with a small volume of fluorescent tracer, and a vertical plane passing through the vertical axis of the vessel was illuminated using a laser sheet. The fluorescence emitted by the dye was detected using a CCD camera and a calibration routine was developed to relate the measured fluorescence to the local dye concentration. The technique is shown to be capable of determining the mixing mechanism via visual inspection whilst log-variance (quantitative) analysis was employed to determine the degree of mixedness as a function of the Reynolds number and energy input per unit mass. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Criteria for measuring mixing performance in a vessel with a rising free surface

Neal, G.; Simmons, M.; Hough, J.; Fryer, P.
Experiments in Fluids , Volume 45 (1) – Feb 2, 2008
Download PDF
10 pages

Loading next page...
 
/lp/springer_journal/criteria-for-measuring-mixing-performance-in-a-vessel-with-a-rising-WLPQy9kNb8

References (19)

Publisher
Springer Journals
Copyright
Copyright © 2008 by Springer-Verlag
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
DOI
10.1007/s00348-008-0460-1
Publisher site
See Article on Publisher Site

Abstract

A PLIF technique is described which enables the measurement of mixing performance in a 0.06 m square section vessel as the vessel is filled using a vertical dip pipe. The liquids used were Newtonian aqueous solutions of glycerol (μ = 3–12 mPa s); the values of Reynolds number of the entry jet ranged from 343 to 3,735. The vessel was initially charged with a small volume of fluorescent tracer, and a vertical plane passing through the vertical axis of the vessel was illuminated using a laser sheet. The fluorescence emitted by the dye was detected using a CCD camera and a calibration routine was developed to relate the measured fluorescence to the local dye concentration. The technique is shown to be capable of determining the mixing mechanism via visual inspection whilst log-variance (quantitative) analysis was employed to determine the degree of mixedness as a function of the Reynolds number and energy input per unit mass.

Journal

Experiments in Fluids – Springer Journals

Published: Feb 2, 2008

There are no references for this article.