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On the Discharge Coefficient of Overflow Spillways

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 31 Issue 1 Page 171-178
published_at 1980
KJ00000156348.pdf
[fulltext] 643 KB
Title
越流型余水吐の流量係数について
On the Discharge Coefficient of Overflow Spillways
Creators Saitou Takashi
Creators Ohnari Hirofumi
Creators Akashi Nobuyoshi
Creators Fukada Mitsuo
Creators Okada Takeshi
Source Identifiers
As maximum utilization of water resource is required, so increase the demand for the greater accuracy of discharge coefficient of overflow spillways. It is one of difficulty to reduce the general expression of discharge coefficient of overflow spillways that experimental data of dam model which involves effects of ratio of overflow depth to dam height, overflow depth to overflow span length and etc. It is necessary to establish the discharge coefficient of two dimensional overflow spillways, as a clue to elucidate the general expression of discharge coefficient of overflow spillways. The purpose of this study is to deduce the general expression of discharge coefficient of two dimensional overflow spillways. In this report, the author proposed the method to determine the control section and discharge coefficient of overflow spillways with general shape. In theoretical analysis, the author introduced the development of boundary layer along a surface of overflow spillways in the theory as to two dimensional potential flows as is generally known. We confirm that the achievements in this report are reasonable, in comparing with many former equation for discharge coefficient depend more or less on experimental data under various condition.
Subjects
土木工学 ( Other)
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1980
File Version Version of Record
Access Rights open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools 工学部