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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2012.5
- 수록면
- 219 - 226 (8page)
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This paper reports the numerical research of the relief effect of compression wave and micro wave between a high speed train and ballast ground track. When a high-speed train enters a narrow tunnel, a compression wave is generated ahead of the train. From the tunnel exit, some part of these wave is reflected back and other part of wave spouts to outside as a micro-wave. In the tunnel, compression wave has tendency of decreasing because of the viscosity from ballasted track. As a results, micro-wave also decreases. This ballast effect is not insignificant for a short tunnel. But it has an effect on pressure relief through the very long tunnel. To numerically analysis this effect, computational fluid dynamics is used on based of two-dimensional unsteady flow model and solving Navier-Stokes Equation using by Fluent software. The length of single track tunnel was 5km, 10km and compared with ballast ground track and slab ground track.
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UCI(KEPA) : I410-ECN-0101-2013-422-002848049