Flow simulation around water intake in a reservoir

摘要

The designed Nanshi dam is located in upperland area of the Hopin south river in Hualien county of Taiwan. The Hopin south river has rather steep slope and strong variation in riverbed. The main function of the Nanshi dam is to divert water for power generation. A physical movable-bed model for the Nanshi dam was constructed to investigate the flow and sediment movement characteristics to ensure the proper design of dam structure and its intake. A three-dimensional numerical model will be employed to simulate the flow fields around the water intake of the Nanshi dam during diverting water under the rules of operating spillways and sluiceways.