The laminar, two-dimensional flow in it is a good approximation of the flow of ideal fluids: the potential flow.
It can be used to visualise streamline fields for flows around drag bodies and flow through changes in cross-section. The streamlines are displayed in colour by injecting a contrast medium (ink). Sources and sinks are generated via four water connections in the bottom plate. The streamlines can be clearly observed through the glass plate during flow around and flow through.
The water flow rate and the quantity of contrast medium injected can be adjusted by valves. The water connections are also activated by valves and can be combined as required. Individual models can be cut out of a rubber plate that is included.
Learning objectives & experiments
- Visualisation of streamlines in
- Flow around drag bodies
- Flow through changes in cross-section
- Influence of sources and sinks
Features
- Visualisation of streamlines
- Ink as a contrast medium
- Various models included: drag bodies and changes in cross-section
- Sources and sinks, individually or in combination
Specification
- Visualisation of streamlines
- Water as flowing medium and ink as contrast medium
- Upper glass plate, hinged for interchanging models
- Bottom plate with water connections for generating sources/sinks
- Sources/sinks can be combined as required
- Different drag bodies and changes in cross-section included
- Rubber plate for creating your own models included
- Flow velocity, water supply and water drain in sources/sinks as well as dosage of the contrast medium can be adjusted by using valves
- Water supply using base module or via laboratory supply
Technical specification
- Flow chamber contains two plates
- Distance between the plates: 2mm
- Upper plate made of glass
- Bottom glass plate with four water connections for sources/sinks
- Size experiment area: lxw: 400x280mm
- 10 drag bodies and changes in cross-section
- Rubber plate for your own models
- Lxh: 300x400mm
- Thickness: 2mm
- Injection of the contrast medium (ink)
- 15 holes
- Tank for contrast medium: 500ml
