文章基本信息
- 标题：実験用送風機による実験 (その2) 角オリフィスの特性および丸ダクト分岐部分流特性に関する研究
- 本地全文：下载
- 作者：樋口 道之助 ; 瀬川 正人
- 期刊名称：日本造船学会論文集
- 印刷版ISSN：0514-8499
- 电子版ISSN：1884-2070
- 出版年度：1965
- 卷号：1965
- 期号：118
- 页码：328-336
- DOI：10.2534/jjasnaoe1952.1965.118_328
- 出版社：The Japan Society of Naval Architects and Ocean Engineers
- 摘要：
This paper deals with results of tests made on the following matters. (1) The flow through the rectangular orifice fitted on a rectangular air duct. (2) The divided flow at the tee branch for a circular air duct. As the results of expeiments, the following empirical formulae have been obtained (1) Coefficient of resistance at the rectangular orifice. ζ= ( Ad /α A 0-1) 2 α=0.625+0.375 ( A 0/ Ad ) 3 (2) Loss in the divided flow at the tee branch for a circular air duct. Main duct P=0.05 Hm 0.6 S2Hm Branch duct P=0.99 Hm+0.341 Hb Where ζ=coefficient of resistance A 0=sectional area of orifice Ad =sectional area of duct P=pressure loss, mmAq Hm =velocity head in the main duct, mmAq Hb =velocity head in the branch duct, mmAq S=flow quantity ratio
