BRAND: TEST INSTRUMENTS
CODE: TEH215
The Osborne Reynolds experiment is used to display laminar and turbulent flows. During the experiment it is possible to observe the transition from laminar to turbulent flow after a limiting velocity. The Reynolds number is used to assess whether a flow is laminar or turbulent. With the streamlines during laminar or turbulent flow are displayed in colour with the aid of an injected contrast medium (ink). The experimental results can be used to determine the critical Reynolds number. The experimental unit consists of a transparent pipe section through which water flows, with flow-optimised inlet. A valve can be used to adjust the flow rate in the pipe section. Ink is injected into the flowing water. A layer of glass beads in the water tank ensures an even and low-turbulence flow. The experimental unit is positioned easily and securely on the work surface of the base module. The water is supplied and the flow rate measured by. Alternatively, the experimental unit can be operated by the laboratory supply.
Specification:
Visualisation of laminar and turbulent flow in the Osborne Reynolds experiment:
Water as flowing medium and ink as contrast medium
Vertical glass pipe section
Water tank with glass beads to stabilise the flow
Flow rate in the pipe section can be adjusted via a valve
Flow rate determined by base module
Water supply using base module or via laboratory supply
Technical data:
Water tank: capacity: 2200mL
Pipe section: length: 675mm Ø, inner: 10mm
Tank for ink capacity: approx. 250mL
Dimensions and weight:
LxWxH: 400x400x1140mm
Weight: approx. 16kg
Required for operation:
(closed water circuit) or water connection, drain
Learning objectives/experiments:
Visualisation of laminar flow
Visualisation of the transition zone
Visualisation of turbulent flow
Determination of the critical Reynolds number
Scope of delivery:
1 experimental unit
1 bag of glass beads
1 ink (1L)
1 set of instructional material
Features:
Visualisation of laminar and turbulent flow
Determining the critical Reynolds number
Traditional experiment based on the model of the British physicist Osborne Reynolds
