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Why the incident wave from the inlet of a pipe is usually specified as an acoustic excitation (e.g., velocity or mass source) and not pressure?

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    • April 5, 2023 at 2:32 pm
      FAQFAQ
      Participant

      If one has an acoustic analysis of pressure waves in a pipe-like system, by specifying a known Pressure, one would be saying that the total pressure must be “x” value. Therefore, the equivalent ‘incident” pressure from the end of the pipe would actually vary as a function of frequency, which is usually not desired. Therefore, for acoustic analyses, the incident wave from the inlet of a pipe is usually specified as an acoustic excitation (e.g., velocity or mass source).

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