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Journal of Flow Visualization and Image Processing
SJR: 0.11 SNIP: 0.312 CiteScore™: 0.1

ISSN Print: 1065-3090
ISSN Online: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.v14.i4.60
pages 417-430

QUANTITATIVE DESCRIPTION OF THE INNER FLOW BEHAVIOR OF A TWO-PHASE HEAT TRANSPORT DEVICE USING IMAGE SEQUENCE PROCESSING

Jaroslav Hemrle
Department of Mechanical Systems Engineering, Tokyo University of Agriculture and Technology, Koganei-shi, Tokyo 184-8588, JAPAN
Tetsuo Onishi
Department of Mechanical Systems Engineering, Tokyo University of Agriculture and Technology, Koganei-shi, Tokyo 184-8588, JAPAN
Cirtog Adina
Tokyo University of Agriculture and Technology
Sadanari Mochizuki
Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei-shi, Tokyo 184, JAPAN
Akira Murata
Department of Mechanical Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan

ABSTRACT

The purpose of the present work is to develop suitable descriptors of the inner flow behavior in a two-phase heat transport device that could be related to its heat transfer performance, and to extract this information from flow visualization records. The methods used include the estimation of the flow direction and the axial flow velocity in the parallel tubes, from which the average flow speed in each tube, the level of unidirectionality of the flow in the tubes, and the correlations between flows in the tubes during the operation are obtained.