Abstract
In the blade design process, flow pattern prediction tools have an essential role to create a highly efficient blade shape. A viscous throughflow code, which can take into account the effects of boundary layer and blade thickness, was developed to evaluate axial turbine flows. In the present paper, the throughflow code is validated by applying it to a concentric annular tube flow. In addition* axial turbine internal flows were evaluated by the throughflow code. The simulation results showed that the throughflow code can predict the flow patterns very well if the effects of secondary flow are marginal.
