1D MoC Aerodynamics · High-Speed Rail
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🚄 1D Tunnel Aerodynamics — MoC Solver

Dayman & Vardy (1979) · Vardy (2008) · Arup/FRA (2022)
Results
Diagnostics

Pressure Distribution Along Tunnel — Dynamic Time View

t = 0.000 s | mass err: 0.00%

Pressure–Time at Tunnel Positions

Positions (m):

Cabin vs External Pressure (at train nose & tail)

Velocity–Time at Tunnel Positions

Positions (m):

MPW Amplitude vs Distance from Portal

Mass Conservation Error vs Time

Max |Pressure| at Entry & Exit Portals vs Time

Monitors whether boundary conditions inject or leak energy.

Rate of Change dp/dt at Exit Portal

Key input for MPW estimation.

Total Kinetic Energy in Tunnel vs Time

Should rise during entry, oscillate, decay after exit.

Solver Confidence Summary