Abstract
The applicability of MPS method with a modified model for non-uniform particle diameter and a method to suppress numerical pressure fluctuation, as an assessment tool for flow regimes in installing a current water wheel in an open channel as one of the development of micro-scale hydropower generation in irrigation systems, was examined. As a result, the turbulent flows around water wheel were calculated with stable condition. Furthermore, the simulated water depths at upstream side of water wheel were about 0.005m larger than the experimental results, at any given runner depths and rotation speeds. This error was equal to the distance between water particles at initial arrangement, and was only 3 % of water depth at the condition with no water wheel.
