硬質塩化ビニール管の摩擦係数   :   Coefficient of Friction on the Rigid Vinyl Chloride Pipe 

作成者 児玉, 義彦, 峰岸, 茂
作成者 (ヨミ) コダマ, ヨシヒコ, ミネギシ, シゲル
作成者の別表記 KODAMA, Yoshihiko, MINEGISHI, Shigeru
日本十進分類法 (NDC) 620
内容 We have obtained the following relation by our measurments of the coefficient of frictonal resistance for a rigid vinyl chloride pipe. If we write a coefficient of frictional resistance of a vinyl pipe λ, velocity of water in a pipe v, and inner diameter of a pipe d, then we have λ=0.01381212v^<-0.268>×d^<-0.234> These relation is derived from [numerical formula] Where h is the head loss of a pipe, l is the length of a pipe and g is the acceleration of gravity. Coefficients of frictional resistance for different pipes are calculated from Rang's formula and their values are shown in the 4th table. If we compared the value of coefficient of frictional resistance for rigid vinyl chloride pipe with that of other pipes, the value of coefficient for a rigid vinyl chloride pipe is less than that of rough pipes such as new cast iron pipe etc, while it is bigger than that of smooth pipes made of glass, lead and zinc etc.
公開者 千葉大学園芸学部
コンテンツの種類 紀要論文 Departmental Bulletin Paper
DCMI資源タイプ text
ファイル形式 application/pdf
ISSN 0069-3227
NCID AN00142658
掲載誌情報 千葉大学園芸学部学術報告 Vol.7 page.111-116 (19591231)
情報源 The technical bulletin of Faculty of Horticulture, Chiba University
言語 日本語
著者版フラグ publisher

Total Access Count:

618 times.

Related Materials in