Film flow on a horizontal rotating disk

The film flow of water and two aqueous solutions of glycerol on horizontal rotating disk has been investigated with the aim to obtain the variations of film thickness along the disk radius at different volumetric flow rates and speeds of rotation. It has been established that when the centrifugal forces are dominant the thickness decreases continuously and can be predicted by the equation of Lepehin and Riabchuk which accounts for the Coriolis force. A hydraulic jump/steep increase to a maximum at the disk rim/has been observed at low speeds. The influence of disk revolutions, liquid properties and flow rate on the jump position has been correlated by means of Ekman, Reynolds and Weber numbers