Image Analysis for Plug Bubbles in Horizontal Flow

Journal Article · Fri Jul 01 04:00:00 EDT 2016 · Transactions of the American Nuclear Society

OSTI ID:23042885

Rau, Adam; Kong, Ran; Kim, Seungjin ^[1]; Bajorek, Stephen; Tien, Kirk; Hoxie, Chris ^[2]

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1. Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, 230 Reber Building, University Park, PA 16802 (United States)
2. United States Nuclear Regulatory Commission, 11555 Rockville pike, Rockville, MD 20852 (United States)

Horizontal plug flow is different from horizontal slug flow in that relatively few small bubbles exist in plug flow, whereas slug flow is characterized by highly aerated liquid slugs and liquid films. While the nose position and nose propagation velocity of plug bubbles may provide physical insights in understanding the flow regime transition mechanism between the plug and slug flows, few systematic investigations on these parameters have been performed in previous research. In view of this, this paper presents the development of an image processing method for the purpose of (a) obtaining data for nose position and nose propagation velocity of plug bubbles and (b) benchmarking local four-sensor conductivity probe measurements of time-averaged bubble velocity and void fraction. (authors)

• OSTI ID: 23042885
• Journal Information: Transactions of the American Nuclear Society, Journal Name: Transactions of the American Nuclear Society Vol. 115; ISSN 0003-018X
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
BENCHMARKS
BUBBLES
IMAGE PROCESSING
LIQUIDS
SENSORS
THIN FILMS
VELOCITY
VOID FRACTION