Abstract
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...