Design and Analysis of a Novel Vertical Axis Water Turbine for Power Generation from Water Pipelines Using K-Epsilon and SST K-Omega Model

The research presents the proposed results of the design and analysis of the performance of a novel vertical axis small water turbine for power generation from water pipelines using the computational fluid dynamics (CFD) technique by using the turbulence model applications of the K-epsilon and SST K-omega. The turbines have a diameter of 40 millimeters, and the simulated water wheel consists of a set of two wheels. According to the study, numerical simulation effects in combination with K-epsilon and SST K-omega turbulence models could predict the mechanical power of pipeline water turbines conforming to theoretical principles. The results showed that the opening deflector domain at a water flow rate of 0.02 m3 /s was able to produce a maximum rotation speed of 435.67 rpm, a maximum torque of 0.74 N.m, and could generate maximum mechanical energy when calculating the rate of energy loss from the pipe system equal to 10.2 watts.