著者

川上 幸作

出版者

一般社団法人日本機械学会

雑誌

日本機械学会論文集 B編 (ISSN:03875016)

巻号頁・発行日

vol.53, no.488, pp.p1131-1135, 1987-04

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In the previous paper, the pressure Loss coefficient of branching rapidly increased when the flow ratio in a cross pipe was in a certain zone. In this experiment, the author observed the flow condition in a cross pipe by using a hydrogen bubble method. As a result of this experiment, it is made clear that the condition of the pressure loss is closely related to the formative mechanism of a vortex and setting a straightening vane in a grade crossing section of a cross pipe restrains the rapid increase of the pressure loss. This paper reports about these phenomena.