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HM 150.18 Osborne Reynolds Demonstrator
Education / GUNT Hamburg / Fluid Mechanics and Hydrology / Fundamentals of Fluid Mechanics /


 The core of the demonstrator is a transparent pipe section (Di=10mm, length 540mm) with a streamlined inlet through which water flows. The flow rate in the experimental pipe section can be adjusted with a manual valve. Ink from a tank is injected into the flowing water to visualize the flow. The transition from laminar to turbulent flow can be observed as function of the flow velocity. The critical Reynolds number is determined from the results of the experiment.
  The water supply is provided either from the laboratory mains or using the HM 150 (closed water circuit).


Learning Objectives / Experiments
- Depiction of laminar flow
- Depiction of the transition area
- Depiction of turbulent flow

[1] Module to carry out the Osborne Reynolds experiment, to be used with the HM 150

[2] l x w h 430x420x1150mm, weight 21kg
[3] Vertical experimental section made of glass
[4] Supply tank with glass beads to reduce turbulences in the flow 
[5] Feed with valve for flow adjustment


Technical Data

Supply tank capacity: 2.8L
Experimental pipe section: length540mm, diameter 10mm
Ink tank: capacity 270ml


Dimensions and Weight
l x w x h: 430 x 420 x 1150 mm
Empty weight: approx. 21 kg
Scope of Delivery

1 experimental set-up, 1 bag of glass beads, 1L ink,

1 instruction manual

Order Details

070.15018  HM 150.18  Osborne Reynolds Demonstrator