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HM 226: Flow Visualisation Wind Tunnel

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Flow Visualisation Wind Tunnel

Flow Visualisation Wind Tunnel

Product Details

Technical Description
The benchtop unit contains a narrow flow chamber with viewing window in which the drag model is placed. The airflow is generated using a blower. To obtain a flow with low turbulence, the air passes through a settling chamber, a fine sieve and a flow straightener. Smoke is used to make the streamlines visible. The smoke is generated by vaporising a glycol mixture and enters the tunnel via a manifold with a large number of outlet holes. The flow patterns can be clearly seen due to the black background of the flow chamber and additional lighting. Four different models (cylinder, orifice and two wing sections) are supplied. They can be interchanged and have an adjustable angle of attack.

Learning Objectives / Experiments
- Flow diagrams for a real fluid when flowing around bodies 
- Onset of boundary layer separation on bodies
- Demonstration of turbulent and laminar flow
- Influence of angle of incidence 
- Flow around a symmetrical and an asymetrical wing
- Flow through slit diaphragm
- Flow around the cylinder

* Compactll wind tunnel with smoke generator
* 4 interchangeable models
* Graduated scale for display of angle of incidence
* Illuminated flow chamber with sight glass
* Low-turbulence flow
[1] Benchtop unit for visualisation of stream lines around different bodies
[2] Illuminated experimental area with transparent panel and black background
[3] Wind tunnel with radial fan and smoke generator
[4] Low-turbulence flow due to stabilisation chamber and flow straightener
[5] 4 different models, adjustable angle of incidence
[6] Graduated scale indicates angle of incidence of model
[7] 230V, 50Hz, 1 phase

Technical Data
Visual range of smoke channel: 252x252mm, cross-section: 252x42mm
Drag bodies:
- cylinder: Ø60x24.5mm
- wing, sym.: 15x24.5x100mm
- wing, asym.: 20x24.5x100mm
- diaphragm 25x24,5x10mm
- wing swivelling range: 360°
Low pressure radial fan: max. airflow rate: 480m³/h, max. pressure increase: 300Pa
Smoke generator: 700W power consumption

Dimensions and Weight
l x w x h : 1400 x 500 x 490 mm
Weight : approx. 50 kg

230V, 50Hz, 1 phase

Scope of Delivery
1 wind tunnel, 1 smoke generator 4 models, 1 instruction manual

Order Details
070.22600  HM 226  Flow Visualisation Wind Tunnel
Alternative products
HM 170 -- Educational Wind Tunnel
HM 225 -- Airflow Bench

SELKA GmbH, Hamburg
Grindelallee 188, 20144 Hamburg / Germany
Tel.: + 49 (0) 40 343453 |  Fax: +49 (0) 40 63657075
E-Mail:   |  Internet:

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