In the field of fluid mechanics of incompressible fluids a distinction can be made between pipe flow and open-channel flow. With sufficient pressure and flow velocity in the completely filled pipe, the flow is considered as one-dimensional for reasons of simplicity. Due to this precondition physical phenomena can easily be described and calculated. Open-channel flow in contrast is always multidimensional.
The compact experimental unit enables a variety of experiments on the fundamentals of incompressible flow in open channels and pipes.
A pump supplies water from the storage tank through the supply line into the open channel or the pipe. The flow processes are clearly visible since all parts are made of transparent plastic.
In the pipe section the water flows through an orifice, a Venturi nozzle, a contraction, an enlargement as well as pipe bends and pipe angles of varying diameters. The open channel has a broad-crested weir and a sharp-crested weir. A valve is used to close off or open up the two different working sections.
Learning Objectives And Experiments
- Fundamentals of pipe flow and open-channel flow
- Differential pressure measurement at the orifice, Venturi nozzle, pipe bends and pipe angles, contraction and enlargement
- Investigation of weir structures in an open channel
- In conjunction with the power meter
- Recording a pump characteristic
Specification
- Investigation of the fundamentals of different areas of incompressible flow
- Closed water circuit with pump
- Transparent pipe section and open channel
- Experiments on pressure losses at pipe bends and pipe angles, Venturi nozzle, orifice plate
- One broad-crested weir and one sharp-crested weir
- Horizontally travelling level gauge with vertically travelling probe tip to measure the water levels
- Pressure measuring points for differential pressure measurement before and after the respective pipe resistances
- Measurement of the power consumption of the pump with power meter
Technical Specification
- Pump, 3 stages
- Max. Power consumption: 100W
- Max. Flow rate: 83L/min
- Max. Head: 6m
- Electronic water level gauge
- Measuring range: 0…200mm
- Graduation: 1mm
- Travel: max. 205mm
Measuring ranges
- Differential pressure: 0…600mbar
- Flow rate: 3,5…50L/min
- 230V, 50Hz, 1 phase
- 230V, 60Hz, 1 phase
- 120V, 60Hz, 1 phase
