The Telegraph Equation
Model ID: 28
This model examines how telegraph wire transmits a pulse of voltage using the telegraph equation. The telegraph equation models mixtures between diffusion and wave propagation by introducing a term that accounts for effects of finite velocity to a standard heat or mass transport equation.
In this model a small section of a telegraph wire is treated to study the pulse of voltage moving along the wire. The purpose of this example is to show the simplicity of defining and solving freely defined equations in COMSOL Multiphysics.
|A line graph showing a pulse of voltage transmitted in a telegraph wire at times t=0 and 0.5.|