School of Physics Lecture Demonstration Manual

Fc-5 The Chimney effect (Atomiser Principle)

Published: Monday 13 March 2006 - Updated: Tuesday 29 March 2011

Aim

To Demonstrate how perpendicular airflow can create lift.

Apparatus

Diagrams

Click on pictures to enlarge.

The Chimney Effect (Atomiser Principle)

Chimney Effect Diagram

Videos

The Chimney Effect (Atomiser Principle)

Description

A perspex tube (the chimney) is positioned above a beaker of rice bubbles or other appropriate light particles. The blower is aimed to provide a jet of air passing just above the chimney and at a slight angle to the horizontal. With a bit of practice the particles can be lifted completely up the tube and sprayed across the students. For best results the tube should be positioned about 1 mm above the level of the Rice bubbles. A spectacular demonstration.

Safety notes

Electrical safety

Maintenance

top of page