FREE AND FORCE VORTEX APPARATUS

The experimental set up consist of a circular transparent cylindrical tank in which four circumferential jets have been
placed along the circumference of the cylinder near its bottom which helps in the formation of free vortex. It is
assumed that the torque exerted by these jets is negligible.The Orifice is reducing bush so that a reduced diameter
can be investigated.The plate can also be rotated with the help of a variable speed motor so that the cylinder rotates
about its vertical Axis with the help of a V belt and forced vortex is formed. Conditions wear allowed to steady state
and the depth of flow at any particular point was observed not to change over a period of time.The experimental
procedure involves measurement of resulting free surface that represents the variation of the sum of the pressure and
datum head.
Experiments
* To plot the surface profile of a free and forced vortex by measurement of the
surface profile coordinates and to show that total energy is constant throughout
vortex,