開水路系の安定化特性と段波の調整施設による変遷特性について--配水の水理-4-
スポンサーリンク
概要
- 論文の詳細を見る
Characteristics of the stabilizing process of open channel flow after: the water distributive operation were studied experimentally. The relationship between the flow stabilizing time and the many hydraulic properties, and the estimating method of the stabilizing timc were investigated. From this study, the following were obtained. 1. The effect for the water stage stabilizing time by the gate groupe that were set downstream from the operating gate were tested. The stabilizing timne becomes slow with increaseing the numbers of gate, and it approches to a limited value. And then, the nondimensional curves related to the water stage stabilizing time were obtained for the eaeh cases of partial closing and opening of gate. 2, The effect for the stabilizing time by the gate groupe that were set upstream from the operating gate were tested. For the case of partial closing of gate, the nondimensional stabilizing time curver, independently with the gate numbers, are shown by the curve, G-O, for the case that was equiped an operating gate only in channel. However, for the case of opening, the stabilizing time becomes slower as gate numbers increase. The nondimensional curves were obtained for this case. 3 . The stabilizing charaeteristics for an open channal system that were equiped many gates, where an optional operation of a gate was done, were studied. In this case, the stabilizing time was affected by the time that is a more slow one, comparing the stabilizing time at both the upstream and the down- stream reach of the operating gate. As the result, the nondimensional stabilizing time curve are shown by Fig. 2-3 for the partial closing of gate and by Fig. 10 for the opening of gate. This estimating method was confirmed by test. 4. Characteristics of the tansformation of surge that passing through the water stage regulating facilities, gate and weir, were investigated by test. The rate of passage and reflection the surge height were related to the relative opening of facilities, for the each cases of positive and negative incoming surge. The results aro shown in Fig. 15. 16. 17. and 18.
- 三重大学農学部の論文
- 1980-12-00