Effective nose shape for reducing tunnel sonic boom

Quarterly Report of RTRI (Railway Technical Research Institute) (Japan)

Volumn 38, Issue 4, 1997, Pages 206-211

  Iida, Masanobu ^a   Matsumura, Tsuyoshi ^a   Nakatani, Koji ^b   Fukuda, Takashi ^a   Maeda, Tatsuo ^a  

^a RAILWAY TECHNICAL RESEARCH INSTITUTE   (Japan)

^b WEST JAPAN RAILWAY COMPANY   (Japan)

Author keywords

Infrasound; Micro pressure wave; Nose shape; Tunnel sonic boom

Indexed keywords

COMPUTER SIMULATION; OPTIMIZATION; RAILROAD TUNNELS; SHOCK WAVES;

INFRASOUND; MICROPRESSURE WAVES; TRAIN NOSE SHAPE; TUNNEL SONIC BOOM;

RAPID TRANSIT;

EID: 0031268499     PISSN: 00339008     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (9)

1. Ozawa, S. : "Studies of micro-pressure wave radiated from a tunnel exit", Railway Technical Research Report (in Japanese), No.1121, 1979
2. Yamamoto,A. : "Micro-pressure wave radiated from tunnel exit", Preprint of the Spring Meeting of Physical Society of Japan (in Japanese), No. 4, 4p-h-4, 1977
3. Ozawa,S., Maeda,T., Matsumura,K., Uchida,K., Kajiyama, H., Tanemoto, K. : "Countermeasures to reduce micro-pressure waves radiated from exits of Shinkansen tunnels", Proc. 7th Int. Symp. on Aerodynamics and Ventilation of Vehicle Tunnels, Brighton, UK, pp. 253-266, BHR Group Limited, 1991
4. Ozawa, S., Maeda, T., Matsumura, K., Nakatani, K., Uchida.K. : "Distortion of compression wave during propagation along Shinkansen tunnel", Proc. 8th Int. Conf. on Aerodynamics and Ventilation of Vehicle Tunnels, Liverpool, UK, pp. 211-226, BHR Group Limited, 1994
5. Maeda, T., Matsumura, K., Iida, M., Nakatani, K., Uchida, K. : "Effect of shape of train nose on compression wave generated by train entering tunnel", Proc. Int. Conf. on Speedup Technology for Railway and Maglev Vehicles, Yokohama, Japan, Vol.2, pp. 315-319, JSME, 1993
6. Iida, M.: "Numerical simulation of compression wave generation in tunnels during train nose entry", RTRI Report (in Japanese), Vol. 8, No. 6, pp. 25-30, 1994.
7. Chakravarthy, S. : "The versatility and reliability of Euler solvers based on high-accuracy TVD formulations", AIAA Paper 86-0243, 1986
8. Iida, M., Matsumura, K., Nakatani, K., Fukuda, T., Maeda, T. : "Optimum nose shape for reducing tunnel sonic boom", International Railway Conference on Better Journey Time - Better Business, Stech'96, IMechE, 1996
9. Noguchi, Y., Okamura, Y., Uchida, K., Ishihara, T., Mashimo, S., Kageyama, M.: "Solving aerodynamic environmental problems arising from train speed-up", International Railway Conference on Better Journey Time - Better Business, Stech'96, IMechE, 1996