On the Aerodynamic Problems of the High Speed Train

概要

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At high speed of train operation the air resistance dominates over the other elements of running resistance and additionally arise various aerodynamic problems to be considered. The authors established through a model test in the wind tunnel that streamlining of the head and complete coverage of the gap at connections of cars with outer diaphragms could substantially cut the air resistance ; and proved that the wind tunnel test results would in general be applicable to real cars designed on these test results. Reference is also made to the test results on a spoiler type air drag brake and the air force characteristics of a train exposed to side winds.
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