第23回応用力学シンポジウム

講演情報

一般セッション

一般セッション(第四部門:流体力学)

流体力学A

2020年5月16日(土) 09:00 〜 10:30 D会場 (D)

座長:岩崎 理樹(北海道大学)

[S04A-02] Experimental Study on Hydraulic Functions of Manholes in a Surcharged Sewer Pipe System

*Hao Zhang1, Kenji Kawaike2, Shoji Okada3, Taku Fujiwara1 (1. Kochi University, 2. Kyoto University, 3. National Institute of Technology, Kochi College)

キーワード:Urban flood, Manhole, Hydraulic function

For an appropriate assessment of the capacity and efficiency of a drainage system, and to improve the accuracy of numerical models for urban flood simulation, it is crucial to understand the hydraulic functions of manholes. In this study, a series of laboratory experiments have been conducted with a scaled physical sewer system model. In particular, manholes of circular and square shapes, with and without covers, and arrangements with different connecting angles to the branch pipelines have been investigated. Based on the research results, the sewer flow, pressure changes and energy losses associated with manholes have been characterized and the important roles which the manholes play have been discussed in a surcharged sewer pipe system.