EngineeringMechanical EngineeringAerodynamicsThermodynamicsTunnel EngineeringExperimental AerodynamicsTunnel DesignTunnel GeometryTunnelingWind-tunnel TestingOperating Pressure EffectsPressure EffectsRailway TunnelsTunnels
Decisions on bore-size and general configurations of future tunnels, especially those of great length or for high speeds, will rely heavily on combined aerodynamic and thermodynamic considerations. Measures are under study to alleviate the worst pressure effects.