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Chimney Draw With Water
Purpose
To illustrate the concept of chimney draw due to the Bernoulli effect.
Equipment
Flask of colored water, plastic tube, compressed air source.
Suggestions
This is the principle of an atomizer, such as those which squirt a fine mist of perfume.
Setup Time
5 min.
Images
Description
A plastic tube is inserted into a water reservoir, and a jet of air blown across the top of the tube. Water rises in the tube due to the reduced pressure in the moving air jet. Note that the cork in the picture is NOT sealed, so atmospheric pressure acts on the surface of the water in the beaker.◙
References
Julius Sumner Miller, On Demonstrating Bernoulli's Principle, AJP 22, 147-148 (1954).
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See pagesf1. pressure in static fluids
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See pagesf2. buoyancy
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See pagesf3. surface tension
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See pagesf4. fluid in motion
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See pagesf5. pressure in moving fluids
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See pagesf1. pressure in static fluids
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See pagesf2. buoyancy
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See pagesf3. surface tension
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See pagesf4. fluid in motion
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See pagesf5. pressure in moving fluids
Physics Lab Demos