Rayleigh’s Equation Calculator

Rayleigh’s Equation describes the relationship between the pressure fluctuations () and the velocity fluctuations () associated with acoustic waves in a fluid. It accounts for the compressibility of the fluid and the propagation characteristics of sound waves. Rayleigh’s Equation is a partial differential equation and can vary depending on the specific assumptions and conditions of the problem. In one-dimensional form, it can be expressed as:

Where:

  • is the pressure fluctuation (Pa),
  • is time (s),
  • is the speed of sound in the fluid (m/s),
  • is the Laplacian operator, representing the spatial variation of pressure.

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