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3. Velocity of pressure waves in deformable pipes
3.1 Analysis of flow equation terms
The propagation speed of a pressure wave in a liquid contained inside a deformable pipe is lower than the celerity of sound. This difference is due to the pressure variation caused by the passage of the wave, which alters the cross-section of the pipe. In the case of gases, this influence is negligible.
To determine the propagation velocity of a pressure wave in a deformable pipe, the terms in
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Velocity of pressure waves in deformable pipes
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