Experimental Study on the Scale Effect of Model with the Air-Entraining Vortex

Abstract

The model scale effect in the vortex experiments cannot be avoided due to the influence of the viscosity.
In this study we evaluated quantitatively the scale effects in the model experiment of the intake vortex using five kinds of scale model, and therefore we propose a new experimental method.
As a result, when we experiment with the intake vortex in Froude model, the method correcting water viscosity by water temperature control is effective for adequate evaluation of the scale effect.