1977•Unpublished venueRequires access

MOVEMENT OF NON-STATIONARY AIR IN UNDERGROUND TUNNELS. AN APPROXIMATION METHOD FOR EVALUATING AIR CURRENTS

E Rohne

Abstract

Equations can be obtained for evaluating air currents produced by trains in tunnels by means of an approximation method of evaluating the increase in speed of an underground trainset as the driver accelerates after stopping in a tunnel. The results of calculations have been compared against results obtained from measurements and both coincide with each other.

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Key concepts: Train, Movement (music), Mechanics, Meteorology, Environmental science, Marine engineering, Engineering, Acoustics