管水路流れにおける3方向接合円形マンホールのエネルギー損失の定式化
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概要
- 論文の詳細を見る
Energy loss at manholes under surcharged conditions is as important as the friction loss in pipes in the design of storm sewer networks and in flood-analysis. Some researchers have already proposed the formula to calculate the energy loss at three-way manhole under surcharged conditions. However, in most of these proposed formulas all variables of structural elements for the pipes and the manhole have not been considered enough yet. Therefore, development of the formula to exactly calculate the energy loss at three-way manhole is needed. In this study, the effect of diameter ratios between inflow pipes and an outflow pipe, the ratios of flow rates between inflow pipes and connected angles among those pipes on the energy loss at three-way manholes were investigated and a new formula was proposed for the energy loss coefficients at three-way manholes that considers all structural elements and hydraulic parameters except drop gap between inflow pipes and an outflow pipe.
- Japan Society of Civil Engineersの論文
Japan Society of Civil Engineers | 論文
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