Specifications:-

The free vortex experimental set up consist of a circular transparent cylindrical tank fabricated with stainless steel at bottom. Near the bottom of the tank, four circumferential jets are placed along the circumference of the cylinder. These circumferential jets, near its bottom, helps in the formation of free vortex. It is assumed that the torque exerted by these jets is negligible. Three different interchangeable openings are provided which can easily be fixed at the bottom. A pointer can be transverse horizontally & vertically across full diameter of the vessel so that water surface profile can be measure. Both axes contain graduations so that exact position of the pointer is known. The experimental procedure involves measurement of the resulting free surface that represents the variation of the sum of the pressure head and datum head. An arrangement is provided to drain the vessel.The forced experimental set up consists of a circular transparent cylindrical tank, fixed on a stainless steel plate. This plate is rotated with the help of a variable speed motor so that the cylinder rotates about its vertical axis. The motor is supplied with speed control facility and rotation of the transparent tank is displayed on a Digital RPM Indicator. Water is filled in this tank up to certain level. When this water filled transparent tank rotates , a forced vortex is formed. An upper probe can be transverse horizontally & vertically across full diameter of the transparent tank so that water surface profile can be measure. Both axes contain graduations so that exact position of the probe is known. The experimental procedure involves measurement of the resulting free surface that represents the variation of the sum of the pressure head and datum head. An arrangement is provided to drain the vessel

Required for Operation:

• Electric supply: single phase, 220V, 50 Hz, 5 15m amp. Combined socket with earth connection. Each voltage should be less than 5 volts.

• Floor area: 1 x 1 meter.

• Floor Area with Drain facility

• Water supply: initial fill

Technical Specifications:

• Cylinder Material acrylic
• Diameter : 200 mm. approx
• Height : 200 mm approx.
• Each for free and forced vortex.
• Motor : Variable speed DC motor of compatible
• Water circulation : ½ HP pump, Compton make.
• Flow measurement : Using Rota meter
• Cross slide : With scale reading in cm.
• Orifices : 3 nos. of different openings
• Probe : Material stainless steel
• Sump tank : Made of stainless steel ,
• Capacity 35 liters approx.
• Size : 250 x 400 x 350 mm

The whole set up is well designed and arranged on a rigid structure painted with industrial PU paint.