Three-dimensional velocity vector determination algorithm for individual bubble identified with Wire-Mesh Sensors

Masahiro Furuya, Taizo Kanai, Takahiro Arai, Hiroki Takiguchi, Horst Michael Prasser, Uwe Hampel, Eckhard Schleicher

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The bubble pairing scheme was devised to quantify three-dimensional velocity of each bubble. We used two sets of Wire-Mesh Sensors to identify locations of each bubble according to bubble identification algorithm, which was developed by HZDR. The devised scheme was applied to the vertical upward air-water flow at 0.64 m/s for both air and water superficial velocities in a large diameter pipe (i.d. 224 mm). The bubble pairing scheme visualized the developing process of two-phase flow: large bubbles coalesced with each other to move toward the center, while the rest of bubbles broke up into smaller bubbles and decelerated.

Original languageEnglish
Pages (from-to)74-79
Number of pages6
JournalNuclear Engineering and Design
Volume336
DOIs
Publication statusPublished - 2018 Sep 1
Externally publishedYes

Keywords

  • Bubble diameter
  • Bubbly flow
  • Gas-Liquid
  • Three-dimensional velocity vector
  • Void fraction
  • Wire-Mesh Sensors

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Safety, Risk, Reliability and Quality
  • Waste Management and Disposal
  • Mechanical Engineering

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