2015 CSCE Annual Conference Regina - Building on our Growth Opportunities Conference
Dr. Yee-Chung Jin, University of Regina
Pool-and-weir fishway is an important type of fishway to aid migrate fish ascending upstream through obstructions in rivers or streams. It consists of a set of fishway pools separated with weirs. Water flows through this type of fishway either by plunging into the fishway pool or streaming above weirs. In this study, a pool-and-weir fishway flow is modelled by using a mesh-free method, moving particle semi-implicit method (MPS). This method is widely used to simulate flows in hydraulic engineering such as dam-breaking flow, open-channel flow, hydraulic jump and weir flows. Due to the Lagrangian nature of the method, it is good at handling large deformation and free surface problems since moving particles are used instead of fixed meshes in the traditional Eulerian methods. This flow in fishway is successfully reproduced by MPS. The water surface profiles are compared with experimental measurements, and good agreement is achieved.