한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2004년도 추계학술대회 논문집
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- Pages.503-509
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- 2004
Numerical Analysis on Pressure Characteristics of the Pipe system of Train
초록
With modem computational fluid dynamics method (CFD), air-charging models of the air brake pipe system and auxiliary reservoir are built. Compared with one-dimension model, no empirical formula is introduced to solve branch pipe fields for two-dimension model. A modified operator-splitting method is presented to solve the coupled equations of pressure and velocity, and numerical simulation shows that it is very stable. Compare the numerical results with empirical data of heavy haul trains in home and abroad so as to prove the correctness of the theory and algorithm presented. This paper gives theoretic reference to the experiments of braking effects of heavy haul trains, and forms a basis for development of complete freight train air brake system simulation.
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