quick overview :
In research and training, flow processes are often considered in simplified models, e.g. in pipe flows, open channel drainage processes or the incident flow of structures.
It can be used to visualise flow around bodies, pipe flows and flow phenomena in open channels. Various models are fixed in the flow section. The streamlines are made visible by using injected ink as a contrast medium. The flow section is illuminated from behind and has a transparent front plate.
Open-channel flow is demonstrated with two weirs. The downstream water level can be adjusted with the aid of another weir. Flow through is shown in three models with change in cross-section and in the model “pipe bundle”. Streamlines in flow around bodies are demonstrated on four drag bodies.
It includes a closed water circuit. Alternatively, the experimental unit can be operated by the laboratory supply.
Learning objectives And experiments
Streamlines when flowing around different solid drag bodies
Streamlines when flowing through different shaped models
Flow over different weirs
Features
Visualisation of streamlines
Illuminated flow section
Flow over weirs
Different models: drag bodies, weirs and changes in cross-section
Specification
Experimental unit for visualisation of various flow processes
Illuminated flow section with transparent front panel
Open-channel flow demonstrated on 2 weirs
Flow through demonstrated with 4 differently shaped models
Flow around solid bodies demonstrated on four drag bodies
Contrast medium: ink
Optional operation via laboratory supply or as closed water circuit
Technical specification
Flow section: approx. 5l
Contrast medium: ink
Injection of the contrast medium
5 nozzles
Pump
Flow rate: 10l/min
Head: 5,7m
Weirs
Broad-crested
Sharp-crested
Drag body
2 cylinder cross-sections
Aerofoil, symmetrical
Aerofoil, asymmetrical
Change in cross-section / flow through
Gradual contraction / sudden enlargement
Sudden contraction / gradual enlargement
Sudden contraction / enlargement
Tube bundle
230v, 50hz, 1 phase
230v, 60hz, 1 phase; 120v, 60hz, 1 phase
Product
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