Three-dimensional velocity vector determination algorithm for individual bubble identified with Wire-Mesh Sensors
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Author / Producer
Date
2018-09
Publication Type
Conference Paper
ETH Bibliography
yes
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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.
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Publication status
published
Book title
Advanced Instrumentation and Measurement Techniques for Nuclear Reactor Thermal Hydraulics Experimentation: Selected papers from SWINTH-2016 workshop
Journal / series
Volume
336
Pages / Article No.
74 - 79
Publisher
Elsevier
Event
Specialists Workshop on Advanced Instrumentation and Measurement Techniques for Nuclear Reactor Thermal Hydraulics (SWINTH 2016)
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Bubble diameter; Bubbly flow; Gas-liquid; Three-dimensional velocity vector; void fraction; wire-mesh sensors
Organisational unit
03725 - Prasser, Horst-Michael (emeritus) / Prasser, Horst-Michael (emeritus)