Plane
waves in enlarging duct:
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Fluid is air at ambiant
conditions (c=344 m/s)
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Frequency is 500 Hz
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Area ratio is m=4.
Source is an ideal velocity generator
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Pressure and Volume
velocity continuous at interface (movies are not synchronous)
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Maximum pressure is
blue, and minimum (negative) pressure is red, zero pressure is blue/green
(the B&K color!)
The movie was created
using MATLAB (Registered Trademark).