Flow Characteristics of Ice/Water Slurry in a Horizontal Circular Pipe.
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- KAWADA Yoshitaka
- Nagaoka National College of Technology
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- SHIRAKASHI Masataka
- Nagaoka University of Technology
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- YAMADA Shuichi
- Nagaoka University of Technology
Bibliographic Information
- Other Title
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- 水平円管における氷水スラリーの流動特性
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Description
Based on our earlier works about the flow behaviors of ice/water slurry in pipeline elements, it was suggested that the friction of ice-particle clusters against pipe wall affects the pressure drop, and that the flow behavior is strongly influenced by adhesive nature of ice particles. However, the accuracy of the measurement on friction factor was insufficient, and no measurement has been carried out so far on the adhesive force of ice particles.<BR>In this work, a technique to measure the friction factor of ice-particle clusters against pipe wall was modified and applied to combinations of pipes and particles for which pressure drop data were available. A technique to measure the adhesive force of ice particles was developed and applied to particles with different sizes. Flow patterns of ice/water slurries through a horizontal circular pipe were observed using the same particles.<BR>The friction factors were confirmed to correlate well with the pressure drops. This result shows that the pipe material, roughness and diameter and the particle shape and size affect the pressure drop through the friction between particle and pipe wall. The adhesive nature was expressed by the compression yield stress of cylindrical ice-particle cluster. The compression yield stress was greater for smaller particles, the order of which corresponded well with the tendency to make clusters in pipe flows with an equal velocity. The ice particle cylinder was strengthened remarkably by increasing the compression stress step-wisely by a value lower than the yield stress.
Journal
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- Journal of the Japanese Society of Snow and Ice
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Journal of the Japanese Society of Snow and Ice 63 (1), 11-19, 2001
The Japanese Society of Snow and Ice
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Keywords
Details 詳細情報について
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- CRID
- 1390001206460514944
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- NII Article ID
- 10007384377
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- NII Book ID
- AN00131221
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- ISSN
- 18836267
- 03731006
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- NDL BIB ID
- 5650078
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed