ENERGY LOSS CHARACTERISTIC OF FOUR-WAY CIRCULAR MANHOLES AT CROSSROADS
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- OKAMOTO Ayaka
- 松江工業高等専門学校 生産・建設システム工学専攻
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- ARAO Shinji
- 松江工業高等専門学校 環境・建設工学科
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- HIRATSUKA Shunsuke
- 電源開発株式会社
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- KUSUDA Tetsuya
- 九州大学
Bibliographic Information
- Other Title
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- 十字路交差点における4方向接合円形マンホールのエネルギー損失特性
Abstract
<p> The authors have formalized the energy loss coefficient for two-way and three-way circular manholes where one or two inlet pipes are connected to an outlet pipe. However, there are many variables to consider in a four-way circular manhole at a crossroad, which makes formulation difficult. Therefore, the authors first formulated a model for a four-way circular manhole under the condition that the flow rates of two opposed lateral inflow pipes were the same. In this paper, we clarified energy loss characteristics of a four-way circular manhole by changing the planar arrangement of three inflow pipes with different pipe diameters, and further varying inflow rates to the three inflow pipes. When the flow rate in the straight pipe was small, the energy loss coefficient for the lateral inflow pipes changed more than that for the straight pipe with the change of lateral flow rates.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 76 (2), I_925-I_930, 2020
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390008754689797888
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- NII Article ID
- 130008122729
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- ISSN
- 2185467X
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed