후드가 존재하는 고속철도 터널에 배출공을 이용한 미기압파 저감에 대한 수치적 연구

초록

This paper shows numerical study on micro pressure wave reduction according to the hood and ventpipes on the hood in high-speed railway tunnel. The evolution of pressure waves is calculated by using a Fluent V.13, where layering method of dynamic mesh and the 2D axis-symmetric model. In order to validate, the values experimented by Wu are used to verify in this research. From the results, We can have a conclusion that the role of hoods respectively were different according to the position.