AF17 - Experiment


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An experimental module for use with the AF10 Air Flow Bench to provide facilities for flow visualisation experiments.

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This module consists of a specially-shaped duct which has a large working section with transparent window. The inlet of the duct is attached to the Air Flow Bench plenum chamber using quick-release clamps; the outlet is located into the bench exhaust. The duct has a rake of tubes from which filaments of smoke emerge and flow around two-dimensional models held in the working section.

The smoke filaments can be made to visually show areas of steady and unsteady flow, thickening boundary layers, and separation. The rake is adjustable so that filaments can be made to contact the model surface at specific points of interest if desired.

The models are quickly and simply mounted, allowing the unit to be used for student project work.

The unit produces considerable amounts of smoke which is safe and non-toxic but, to avoid the air in the laboratory becoming saturated, the unit includes a length of flexible tubing that connects the Air Flow Bench exhaust to either a suitable opening to atmosphere, or to an existing fan extraction system.

  • Demonstration of the flow patterns round a cylinder, flat plate, aerofoil and a sharp-edged orifice/slit.
AF10 - Base Unit

A fully mobile bench to provide basic airflow facilities to enable a wide range of practical airflow investigations. Suitable for demonstration, laboratory and project work at a basic level.

AF80 - Experiment

A floor standing suction type subsonic wind tunnel with smoke visualisation. It allows demonstrations and student investigations into the flow of air around a wide variety of different shaped models.


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