Three-dimensional phasic velocity determination methods with wire-mesh sensor

T. Kanai, Masahiro Furuya, T. Arai, K. Shirakawa, Y. Nishi

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A gas-liquid two-phase flow in a large diameter pipe exhibits a three-dimensional flow structure. The wire-mesh sensor (WMS) can acquire a quasi-three-dimensional void fraction distribution. Furthermore, the WMS can acquire a phasic-velocity distribution on the basis of the time lag of void signals between both sets of WMS. Previously, the acquired phasic velocity was one-dimensional distributions.The authors propose a method to estimate the three-dimensional phasic-velocity distribution from the same WMS data. A three dimensional velocity vector was determined on the basis of cross-correlation analysis. The flow direction is determined by the WMS measuring-point combination, whereby the cross-correlation coefficient between both sets of WMS measuring points reveals the peak. In addition, the flow structure can be extracted by size on the basis of a wavelet analysis.The proposed method was applied for two sets of 64. ×. 64 mesh sensors in an air-water flow in a vertical pipe with inner diameter of 224. mm. The proposed method can successfully visualize a swirl flow structure where large and small bubbles tend to move respectively in inward and outward directions in turn.

Original languageEnglish
Pages (from-to)75-86
Number of pages12
JournalInternational Journal of Multiphase Flow
Volume46
DOIs
Publication statusPublished - 2012 Nov 1
Externally publishedYes

Fingerprint

wire cloth
Wire
sensors
Sensors
Flow structure
Velocity distribution
cross correlation
voids
velocity distribution
Pipe
three dimensional flow
Void fraction
Wavelet analysis
water flow
two phase flow
Two phase flow
correlation coefficients
wavelet analysis
mesh
time lag

Keywords

  • Air-water two-phase flow
  • Cross-correlation analysis
  • Swirl flow
  • Three-dimensional velocity vector
  • Wavelet analysis
  • Wire-mesh sensor

ASJC Scopus subject areas

  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

Cite this

Three-dimensional phasic velocity determination methods with wire-mesh sensor. / Kanai, T.; Furuya, Masahiro; Arai, T.; Shirakawa, K.; Nishi, Y.

In: International Journal of Multiphase Flow, Vol. 46, 01.11.2012, p. 75-86.

Research output: Contribution to journalArticle

@article{2b2dd3c2c4c34cf292ba56a8b6b4cb02,
title = "Three-dimensional phasic velocity determination methods with wire-mesh sensor",
abstract = "A gas-liquid two-phase flow in a large diameter pipe exhibits a three-dimensional flow structure. The wire-mesh sensor (WMS) can acquire a quasi-three-dimensional void fraction distribution. Furthermore, the WMS can acquire a phasic-velocity distribution on the basis of the time lag of void signals between both sets of WMS. Previously, the acquired phasic velocity was one-dimensional distributions.The authors propose a method to estimate the three-dimensional phasic-velocity distribution from the same WMS data. A three dimensional velocity vector was determined on the basis of cross-correlation analysis. The flow direction is determined by the WMS measuring-point combination, whereby the cross-correlation coefficient between both sets of WMS measuring points reveals the peak. In addition, the flow structure can be extracted by size on the basis of a wavelet analysis.The proposed method was applied for two sets of 64. ×. 64 mesh sensors in an air-water flow in a vertical pipe with inner diameter of 224. mm. The proposed method can successfully visualize a swirl flow structure where large and small bubbles tend to move respectively in inward and outward directions in turn.",
keywords = "Air-water two-phase flow, Cross-correlation analysis, Swirl flow, Three-dimensional velocity vector, Wavelet analysis, Wire-mesh sensor",
author = "T. Kanai and Masahiro Furuya and T. Arai and K. Shirakawa and Y. Nishi",
year = "2012",
month = "11",
day = "1",
doi = "10.1016/j.ijmultiphaseflow.2012.06.006",
language = "English",
volume = "46",
pages = "75--86",
journal = "International Journal of Multiphase Flow",
issn = "0301-9322",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Three-dimensional phasic velocity determination methods with wire-mesh sensor

AU - Kanai, T.

AU - Furuya, Masahiro

AU - Arai, T.

AU - Shirakawa, K.

AU - Nishi, Y.

PY - 2012/11/1

Y1 - 2012/11/1

N2 - A gas-liquid two-phase flow in a large diameter pipe exhibits a three-dimensional flow structure. The wire-mesh sensor (WMS) can acquire a quasi-three-dimensional void fraction distribution. Furthermore, the WMS can acquire a phasic-velocity distribution on the basis of the time lag of void signals between both sets of WMS. Previously, the acquired phasic velocity was one-dimensional distributions.The authors propose a method to estimate the three-dimensional phasic-velocity distribution from the same WMS data. A three dimensional velocity vector was determined on the basis of cross-correlation analysis. The flow direction is determined by the WMS measuring-point combination, whereby the cross-correlation coefficient between both sets of WMS measuring points reveals the peak. In addition, the flow structure can be extracted by size on the basis of a wavelet analysis.The proposed method was applied for two sets of 64. ×. 64 mesh sensors in an air-water flow in a vertical pipe with inner diameter of 224. mm. The proposed method can successfully visualize a swirl flow structure where large and small bubbles tend to move respectively in inward and outward directions in turn.

AB - A gas-liquid two-phase flow in a large diameter pipe exhibits a three-dimensional flow structure. The wire-mesh sensor (WMS) can acquire a quasi-three-dimensional void fraction distribution. Furthermore, the WMS can acquire a phasic-velocity distribution on the basis of the time lag of void signals between both sets of WMS. Previously, the acquired phasic velocity was one-dimensional distributions.The authors propose a method to estimate the three-dimensional phasic-velocity distribution from the same WMS data. A three dimensional velocity vector was determined on the basis of cross-correlation analysis. The flow direction is determined by the WMS measuring-point combination, whereby the cross-correlation coefficient between both sets of WMS measuring points reveals the peak. In addition, the flow structure can be extracted by size on the basis of a wavelet analysis.The proposed method was applied for two sets of 64. ×. 64 mesh sensors in an air-water flow in a vertical pipe with inner diameter of 224. mm. The proposed method can successfully visualize a swirl flow structure where large and small bubbles tend to move respectively in inward and outward directions in turn.

KW - Air-water two-phase flow

KW - Cross-correlation analysis

KW - Swirl flow

KW - Three-dimensional velocity vector

KW - Wavelet analysis

KW - Wire-mesh sensor

UR - http://www.scopus.com/inward/record.url?scp=84864049155&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84864049155&partnerID=8YFLogxK

U2 - 10.1016/j.ijmultiphaseflow.2012.06.006

DO - 10.1016/j.ijmultiphaseflow.2012.06.006

M3 - Article

VL - 46

SP - 75

EP - 86

JO - International Journal of Multiphase Flow

JF - International Journal of Multiphase Flow

SN - 0301-9322

ER -