| URN | etd-0715119-232206 | Statistics | This thesis had been viewed 135 times. Download 1 times. |
| Author | WEI-YUAN HUNG | ||
| Author's Email Address | h0932961676@gmail.com | ||
| Department | Department of construction & spatial design | ||
| Year | 2018 | Semester | 2 |
| Degree | Master | Type of Document | Master's Thesis |
| Language | zh-TW.Big5 Chinese | Page Count | 61 |
| Title | The Characteristics on the Water Jump of Sluice Flow Affected by A Stepped Rough Bottom | ||
| Keyword | |||
| Abstract | This study uses the open channel flow equipment sink to place stepped levees of different shapes and sizes on the slope track of different slopes. Place the pearl plate at the water outlet and adjust the height to simulate different water discharges, and experiment with the energy dissipation effect and water level change after the water flow hits the stepped structures. ¡@¡@It can be known from the Manning-Strickler formula that the amount of water released is related to the roughness, the area of the fracture, the hydraulic radius and the slope of the rivebed. It can be seen that the placement of different steps will cause different frictional forces to the water flow, so that the water flow will pass through the stepped embankment, and generate different height changes. ¡@¡@These results can be explained that the large-sized step structure will have a higher water level height after being subjected to strong water flow, when the gate height is the narrowest. The results indicating that the large size energy-dissipating structures generate energy-dissipating effect are superior to the small size. In addition, when the gate height is 1 cm and the slope is 0.00, the energy-dissipating effect is better when using the large-size forward and reverse step structures than the forward step structures. ¡@¡@These results imply that we can generate energy-dissipating effect by placing energy-dissipating structures under proper condition, and attain the goal of protecting the residents nearby the riverbed. I encourage the conclusion of this thesis to future scholars' research, and also can be used in practice to achieve environment protection. |
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| Files | indicate access worldwide | ||
| Date of Defense | 2019-07-02 | Date of Submission | 2019-07-19 |