Measurement of the Snow Fraction in a Snow/water Mixture Flow in a Pipe

A method was proposed to determine the snow fraction from the hydraulic gradient of a snow/water mixture flowing in a vertical pipe with a circular cross-section. Experimental results showed that the mixing of snow did not affect the frictional force on the vertical pipe wall, and that the volume sn...

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Bibliographic Details
Published inNihon Kikai Gakkai rombunshuu. B hen Vol. 51; no. 471; pp. 3782 - 3785
Main Authors SHIRAKASHI, Masataka, KOSHIO, Atsushi, WAKIYA, Shoichi
Format Journal Article
LanguageEnglish
Japanese
Published The Japan Society of Mechanical Engineers 1985
Subjects
friction
Hydraulic Conveying
multiphase flow
pipes
walls
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Summary:A method was proposed to determine the snow fraction from the hydraulic gradient of a snow/water mixture flowing in a vertical pipe with a circular cross-section. Experimental results showed that the mixing of snow did not affect the frictional force on the vertical pipe wall, and that the volume snow fraction C' in the pipe was nearly equal to the value C at the discharge. Based on these results, it was confirmed that C' was determined within an error of 2% by the method proposed here for the pipe diameter D corresponding to the range of Froude number Fr between 5 and 35 (Fr=U2m/(|1-s|gD), Um: flow velocity, s: density ratio of ice to water, g: gravity acceleration).
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0387-5016
1884-8346
DOI:10.1299/kikaib.51.3782