Forced Vortex Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-TL-7402
Jlab Export is a leading Forced Vortex Apparatus Manufacturer,and suppliers in India
Forced Vortex Apparatus (code EL-TL-7402) is a rotating-tank unit for studying the forced vortex: a transparent cylindrical tank of water is turned about its vertical axis by a variable speed motor and V belt, so the water spins as a solid body and its surface curves up towards the wall. A graduated probe that traverses the full diameter measures that surface. JLab builds this forced vortex unit in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Vessel | Transparent circular cylindrical tank |
| Drive | Variable speed motor and V belt, turning the tank about its vertical axis |
| Surface measurement | Upper probe, traversed horizontally and vertically across the full diameter |
| Probe scales | Graduations on both axes |
| Experiment | Surface profile of a forced vortex from measured coordinates |
| Electrical supply | Single phase, 220 V AC, 50 Hz, 5–15 A combined socket with earth; earth voltage below 5 V |
| Water and drain | Initial fill; drain arrangement on the vessel, drain required |
| Floor area | 1 m x 1 m |
| Quality check | Each vortex apparatus is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 14–18 working days |
| Product code | EL-TL-7402 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Taking the Profile With the Probe
After the motor speed is set, the water is left until it turns with the tank and the surface stops changing. The probe is then moved across to a chosen radius on the horizontal scale and lowered until its tip just touches the water, and the vertical scale gives the surface height there. Repeating this across the full diameter gives a set of radius and height coordinates on both sides of the axis, which also shows whether the vortex is centred. The surface traced out marks the sum of pressure head and datum head at each radius.
Why the Surface Is a Paraboloid
In a forced vortex every particle turns at the same angular speed ω, so the velocity is v = ωr. Pressure must rise outwards to supply the centripetal acceleration, and along the free surface this gives z = z0 + ω²r²/2g. Plotting the measured height against r² therefore gives a straight line of slope ω²/2g, from which the angular speed of the water can be worked out. Because the volume of water stays the same, the surface rises above the still-water level at the wall by as much as it falls at the centre, each ω²R²/4g for a tank of radius R, provided the centre does not uncover the base.
Other Vortex and Fluid Energy Apparatus
- Free and Forced Vortex Apparatus — a free vortex from four circumferential jets as well as a motor-driven forced vortex.
- Forced Vortex Flow — a forced vortex made by turning a cylinder of water about its axis.
- Bernoullis Theorem Apparatus — pressure tappings along an acrylic convergent and divergent test section.
The apparatus is filed in Thermodynamics Lab, under Fluid Mechanics and Hydraulics Lab Equipment.
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Last updated: 30 October 2026
