Measurement Of Jet Forces

Measurement Of Jet Forces .

Measurement of Jet Forces

Technical Description of Measurement of Jet Forces

During deceleration, acceleration and deflection of a flowing fluid, there is a change of velocity that leads to a change in momentum. According to the momentum equation these changes result in forces. In practice, the motive forces are used to convert kinetic energy into work done, for example in a Pelton turbine. In jet forces are generated and studied with the aid of a water jet that acts on an interchangeable deflector. The experimental unit includes a transparent tank, a nozzle, four interchangeable deflectors with different deflection angles and a weight-loaded scale.  A water jet exits a nozzle vertically upwards, hits the deflector and is deflected. The force of the water jet is adjusted via the flow rate. Experiments study the influence of flow velocity and amount of flow rate as well as of different deflection angles. The jet forces generated by the water jet are measured on the weight-loaded scale. The forces are calculated using the momentum equation and compared with the measurements.

Specification of Measurement of Jet Forces

• Investigation of jet forces and demonstration of the principle of linear momentum
• Tank made of transparent material for observing the experiments
• Nozzle for generating the water jet
• Jet force can be adjusted via flow rate
• Four different shaped deflectors: flat surface, oblique surface, semi-circular surface, conical surface
• Measurement of the jet forces via the weight-loaded scale
• Flow rate determined by base module
• Water supply using base module or via laboratory supply

Technical Data of Measurement of Jet Forces

Tank

• Inner diameter: 200mm
• Height: 340mm

Nozzle

• Diameter: 10mm

Deflector

• Flat surface: 90°
• Oblique surface: 45°/135°
• Semi-circular surface: 180°
• Conical surface: 135°

Weights

• 4x 0,2N
• 3x 0,3N
• 2x 1N
• 2x 2N
• 2x 5N

Dimensions and Weight of Measurement of Jet Forces

• LxWxH: 400x400x880mm
• Weight: approx. 23kg