ON THE RANGE OF VALIDITY OF SIMPLIFIED ONE DIMENSIONAL THEORIES FOR CALCULATING UNSTEADY FLOWS IN RAILWAY TUNNELS

Abstract

Methods of calculating unsteady flows in tunnels have been developed in Japan in connection with the Shinkansen high speed train. In this country the High Speed Train, the Advanced Passenger Train and the Channel Tunnel project have provided the incentive for work on methods of calculation. Another approach has been developed in France, aimed primarily at underground metro systems.