Flow visualization of coherent structures in a 3-hydrocyclone with a 2: 1 contraction in the vortex finder.

B. Dabir, C. A. Petty

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

A quantitiative study of the axial and tangential components of the mean velocity in a 3 inch hydrocyclone using laser Doppler anemometry and flow visualization by dye injection has revealed multiple reverse flows in the vortex core, which are coherent over a significant portion of the hydrocyclone. Little radial mixing occurs between the secondary flows and the outer helical flow. A 2:1 contraction in the vortex finder causes an annular flow only 3 mm thick countercurrent to a small ( 3 mm diameter) upward jet like flow on the axis. This secondary flow extends over more than half of the length of the hydrocyclone and was unexpected. These results and others have raised many fundamental questions to the performance of hydrocyclones as classifiers and as separators. (A)

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
PublisherHemisphere Publishing Corp
ISBN (Print)0 89116 377 8
StatePublished - 1985
Externally publishedYes

Profile

Vortex flow
Secondary flow
Flow visualization
Separators
Classifiers
Dyes
Lasers

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Flow visualization of coherent structures in a 3-hydrocyclone with a 2 : 1 contraction in the vortex finder. / Dabir, B.; Petty, C. A.

Unknown Host Publication Title. Hemisphere Publishing Corp, 1985.

Research output: Chapter in Book/Report/Conference proceedingChapter

Dabir B, Petty CA. Flow visualization of coherent structures in a 3-hydrocyclone with a 2: 1 contraction in the vortex finder. In Unknown Host Publication Title. Hemisphere Publishing Corp. 1985.

Dabir, B.; Petty, C. A. / Flow visualization of coherent structures in a 3-hydrocyclone with a 2 : 1 contraction in the vortex finder.

Unknown Host Publication Title. Hemisphere Publishing Corp, 1985.

Research output: Chapter in Book/Report/Conference proceedingChapter

@inbook{06abe14ff54343318a43b018c35cc380,
title = "Flow visualization of coherent structures in a 3-hydrocyclone with a 2: 1 contraction in the vortex finder.",
abstract = "A quantitiative study of the axial and tangential components of the mean velocity in a 3 inch hydrocyclone using laser Doppler anemometry and flow visualization by dye injection has revealed multiple reverse flows in the vortex core, which are coherent over a significant portion of the hydrocyclone. Little radial mixing occurs between the secondary flows and the outer helical flow. A 2:1 contraction in the vortex finder causes an annular flow only 3 mm thick countercurrent to a small ( 3 mm diameter) upward jet like flow on the axis. This secondary flow extends over more than half of the length of the hydrocyclone and was unexpected. These results and others have raised many fundamental questions to the performance of hydrocyclones as classifiers and as separators. (A)",
author = "B. Dabir and Petty, {C. A.}",
year = "1985",
isbn = "0 89116 377 8",
booktitle = "Unknown Host Publication Title",
publisher = "Hemisphere Publishing Corp",

}

TY - CHAP

T1 - Flow visualization of coherent structures in a 3-hydrocyclone with a 2

T2 - 1 contraction in the vortex finder.

AU - Dabir,B.

AU - Petty,C. A.

PY - 1985

Y1 - 1985

N2 - A quantitiative study of the axial and tangential components of the mean velocity in a 3 inch hydrocyclone using laser Doppler anemometry and flow visualization by dye injection has revealed multiple reverse flows in the vortex core, which are coherent over a significant portion of the hydrocyclone. Little radial mixing occurs between the secondary flows and the outer helical flow. A 2:1 contraction in the vortex finder causes an annular flow only 3 mm thick countercurrent to a small ( 3 mm diameter) upward jet like flow on the axis. This secondary flow extends over more than half of the length of the hydrocyclone and was unexpected. These results and others have raised many fundamental questions to the performance of hydrocyclones as classifiers and as separators. (A)

AB - A quantitiative study of the axial and tangential components of the mean velocity in a 3 inch hydrocyclone using laser Doppler anemometry and flow visualization by dye injection has revealed multiple reverse flows in the vortex core, which are coherent over a significant portion of the hydrocyclone. Little radial mixing occurs between the secondary flows and the outer helical flow. A 2:1 contraction in the vortex finder causes an annular flow only 3 mm thick countercurrent to a small ( 3 mm diameter) upward jet like flow on the axis. This secondary flow extends over more than half of the length of the hydrocyclone and was unexpected. These results and others have raised many fundamental questions to the performance of hydrocyclones as classifiers and as separators. (A)

UR - http://www.scopus.com/inward/record.url?scp=18844465108&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=18844465108&partnerID=8YFLogxK

M3 - Chapter

SN - 0 89116 377 8

BT - Unknown Host Publication Title

PB - Hemisphere Publishing Corp

ER -