Impact of a Jet Apparatus
The Impact of a Jet Apparatus by Atto Labware is a fundamental fluid mechanics apparatus designed to study the reaction forces produced when a jet of water strikes various target surfaces. The unit allows students to experimentally verify the momentum transfer principle and compare measured forces with theoretical predictions. It is an essential educational tool for Civil, Mechanical, and Aerospace Engineering laboratories.
Educational Objectives
Students and researchers will be able to:
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Study the impact of a water jet on different vanes and surfaces.
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Verify the momentum principle and compare experimental and theoretical forces.
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Analyze the relationship between jet velocity, flow rate, and impact force.
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Understand the concept of impulse-momentum in fluid motion.
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Determine efficiency and losses during momentum transfer.
Performance Measurement
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Measurement of jet velocity and discharge rate.
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Measurement of reaction force using weight balance mechanism.
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Calculation of theoretical and experimental impact forces.
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Comparison of results for different vane profiles (flat, hemispherical, conical).
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Determination of percentage error and efficiency.
Panel and Instruments / Components
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Transparent Test Chamber: Allows visual observation of the jet impact.
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Jet Nozzle Assembly: Produces a steady, controlled water jet.
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Target Vanes: Interchangeable flat, hemispherical, and conical vanes.
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Force Measurement System: Spring balance or weight pan system for accurate force measurement.
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Flow Control Valve: Adjusts water flow rate precisely.
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Water Supply System: Compatible with a hydraulic bench or separate pump unit.
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Support Frame: Powder-coated rigid frame with stainless steel fittings.
Specifications (Includes Technical Data)
| Feature | Detail |
|---|---|
| Nozzle Diameter | 6 mm (typical) |
| Target Vanes | Flat, hemispherical, and conical (interchangeable) |
| Flow Rate Range | 0 – 5 L/min (adjustable) |
| Working Fluid | Water |
| Force Measurement | Weight pan and lever arm system |
| Construction | Acrylic test chamber with stainless-steel components |
| Operating Temperature | +5 °C to +40 °C |
| Storage Temperature | –25 °C to +55 °C |
| Overall Dimensions | 500 mm L × 400 mm W × 600 mm H |
| Weight (Approx.) | 12 kg |
Note: Digital force sensor, flowmeter, and data acquisition options available on request.





