1. INTRODUCTION
Due to the rising costs incurred in the experimental studies of the design process
of the cross-flow rotors, researchers have adopted numerical methods, such as the
CFD (Computational Fluid Dynamics) technique. The CFD method offers the
possibility to visualize the turbulent properties and the water comportment
upstream and downstream a hydraulic turbine, which are tough to be examined
through experimental techniques. For example, a computational investigation of a
Savonius hydraulic turbine, which was characterized by spiral vanes with various...