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Numerical Simulation of Relationship between Crossing Pressure Pulse and Speed when High Speed Trains Crossing
Pages: 250-256
Year: Issue:  4
Journal: Journal of Liaoning Institute of Technology(Natural Science Edition)

Keyword:  high speed traincrossing pressure pulsemoving grid techniquenumerical simulation;
Abstract: CRH2 was taken as the example in this simulation study. In the numerical calculation, grid software was ICEM CFD, computational fluid dynamics software was Cfdesign, mathematical model was k-ε equation. CFdesign simulates the dynamic crossing of two trains with moving grid technique. Calculations were used to analyze the generation mechanism of crossing pressure pulse, and the numerical elationship between train speed and cross pressure pulse is found out.
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