Numerical Simulation of Water Flow through a Nano-Hydraulic Turbine of Waterfall-Type by Particle Method

Tomomi Uchiyama, Haruki Fukuhara, Shouichiro Iio, Toshihiko Ikeda
2013 International Journal of Rotating Machinery  
This study simulates the flow through an impulse-type small-scale hydraulic turbine utilizing a waterfall of extra-low head. The twodimensional Moving Particle Semi-implicit (MPS) method is employed for the simulation. The fluid is discretized by particles, and the flow is computed by the Lagrangian calculation for the particle motion. When the distance between the particles discretizing the waterfall of a width B, 0 , is set at 0 / ≤ 0.084, the flow can be simulated with the sufficiently high
more » ... patial resolution, and the rotor performance can also be favorably predicted. The present simulation also successfully analyzes the effect of the rotational speed of rotor on the flow and the turbine performance.
doi:10.1155/2013/473842 fatcat:vhpnvtwx55eppe2nrq6su5whee