Figure 2
A line graph comparing initial compression wave amplitude against train speed, showing a linear increase.The x-axis measures train speed in kilometers per hour from 200 to 340, and the y-axis measures initial compression wave amplitude in kilopascals from 0.6 to 1.6. The graph shows two lines: one for the analytical (Hara) model and one for the present 1D solver. Both lines show a linear increase in amplitude with train speed, with the values closely matching between the two models. All values are approximated.

Verification of the initial compression-wave plateau amplitude against the analytical (Hara) solution, frictionless (A0 = 100 m2, β = 0.112). Source: Author's own work

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