The development of a non-homentropic flow characteristics programme for predicting unsteady flows generated by trains in tunnels part II application of the method of characteristics to the flows in tunnels (TM-AERO-021)

Part II describes how the method of characteristics is applied to predict the flows generated by a train travelling through a tunnel. The tunnel is modelled as a number of variable length ducts which expand or contract according to the velocity of the train. The computational procedures are fundamentally the...