A novel design and performance optimization methodology for hydraulic Cross-Flow turbines using successive numerical simulations

Effect of Blade Angle and Number on the Performance of Bánki Hydro-Turbines: Assessment using CFD and FDA Approaches

“…A tetrahedron mesh has been used. Because it can achieve the curved shape of the rotor, this tetrahedron is commonly used in water turbine modeling cases 22) . Use inflation during the meshing process to get closer to the rotor for more detail 23) .…”

“…The nozzle, which has a rectangular cross-section, directs the water jet toward the runner. The water then hits the blades on the rim, flows into the channels between the blades for the first time, flows through the empty space in the middle of the runner, and flows through the mid-blade channels for a second time before almost radiating out of the runner 13) .…”

Design optimization of a novel vertical augmentation channel housing a cross-flow turbine and performance evaluation as a wave energy converter

“…Elbatran et al [37] tested a new configuration with bi-directional nozzles and twin cross-flow turbines and achieved a maximum efficiency of 52%. Mehr et al [38] carried out an optimization study of a crossflow turbine; they optimized the nozzle geometry and angle of attack followed by turbine parameters to achieve a high efficiency.…”

Changes in power generation performance of an undershot cross-flow-type hydraulic turbine in an irrigation channel due to snow masses passing through the rotor

“…Unused hydro-energy in irrigation channels, industrial drains, and water supply facilities is actively utilized to achieve carbon-neutral targets and the Sustainable Development Goals [4] , [5] , [6] . Small hydraulic turbines (hereinafter called “microhydraulic turbines”), such as cross-flow [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] , propeller [1] , [17] , [18] , [19] , [20] , [21] , [22] , [23] , [24] , [25] , [26] , Savonius [27] , [28] , [29] , [30] , [31] , Darrieus [32] , [33] , [34] , and impulse types [35] , [36] , [37] , have been developed for power generation, depending on the flow conditions. Regarding cross-flow turbines with high efficiency potential, the effects of the nozzle geometry [7] , water-fall thickness [8] , and turbine position relative to the water-fall [9] on the turbine performance have been explored.…”