Essays about: "spillway"
Showing result 1 - 5 of 28 essays containing the word spillway.
-
1. Effects of surface roughness on spillway flow behaviors
University essay from Uppsala universitet/Nanoteknologi och funktionella materialAbstract : This thesis examines the impact of spillway surface roughness on discharge capacity determination in hydraulic models. The study combines physical hydraulic modeling in a laboratory with Computational Fluid Dynamics (CFD) modeling using Fluent. READ MORE
-
2. Flow modeling and bank erosion downstream due to spillway discharge : Independent thesis Advanced level (professional degree) 30 ECTS credits
University essay from Uppsala universitet/Avdelningen för beräkningsvetenskapAbstract : Dam spillways and downstream areas are used to guide large flows of water during for example heavy rainfall. The large flows give way to turbulent pattern sand velocities that may damage the river banks or the dam structure. Investigation of these water patterns at certain flows are therefore done to examine at risk areas. READ MORE
-
3. Hydraulic modelling at Finsjö Övre hydropower plant : Study for evaluation of a fishway's attractiveness
University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronikAbstract : In connection with the government’s approval on the proposed national plan (NAP) in 2019, it has become highly topical to find solutions problems regarding fish migration in Swedish watercourses. At Finsjö Övre hydropower plant in Emån, a new type of fishway is planned to be installed and evaluated starting at the end of 2022. READ MORE
-
4. Spillway flow behaviours with and without aeration
University essay from KTH/Teknisk mekanikAbstract : Cavitation has been known for a long time to cause damages in spillways athydropower plants, aerators are therefore often implemented to prevent this.The majority of the hydropower plants in Sweden are installed in the northernpart of the country. READ MORE
-
5. Quality and trust in physical model test : Examination by CFD modelling
University essay fromAbstract : Many of the hydropower dams in Sweden need to be refurbished in order to be able to handle higer design floods. A part of the work in refurbishing the dams is to build physical models. When the physical models are built the uppstream reservoir area is designed to be a couple of times wider and longer than the spillway. READ MORE