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A Generalized Numerical Simulation Method for Pressure Waves Generated by High-Speed Trains Passing through Tunnels

A Generalized Numerical Simulation Method for Pressure Waves Generated by High-Speed Trains... When high-speed trains pass through tunnels, pressure waves are generated and propagate along the tunnel. Passengers may suffer aural discomfort. A generalized numerical simulation method based on one-dimensional, compressible, unsteady, and non-homentropic flow and the method of characteristics is introduced and validated. Various applications of the method are presented. Pressure waves generated by a single train passing through and two trains passing each other in a plain tunnel are considered. Other applications in non-plain tunnels with auxiliary structures such as airshafts, cross-passages, and perforated walls are also presented. As a result, the proposed generalized numerical simulation method can be applied in most tunnel configurations and particularly used as an analytical tool in the aerodynamic design of high-speed railway tunnels. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advances in Structural Engineering SAGE

A Generalized Numerical Simulation Method for Pressure Waves Generated by High-Speed Trains Passing through Tunnels

Advances in Structural Engineering , Volume 16 (8): 10 – Aug 1, 2013

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Publisher
SAGE
Copyright
© 2013 SAGE Publications
ISSN
1369-4332
eISSN
2048-4011
DOI
10.1260/1369-4332.16.8.1427
Publisher site
See Article on Publisher Site

Abstract

When high-speed trains pass through tunnels, pressure waves are generated and propagate along the tunnel. Passengers may suffer aural discomfort. A generalized numerical simulation method based on one-dimensional, compressible, unsteady, and non-homentropic flow and the method of characteristics is introduced and validated. Various applications of the method are presented. Pressure waves generated by a single train passing through and two trains passing each other in a plain tunnel are considered. Other applications in non-plain tunnels with auxiliary structures such as airshafts, cross-passages, and perforated walls are also presented. As a result, the proposed generalized numerical simulation method can be applied in most tunnel configurations and particularly used as an analytical tool in the aerodynamic design of high-speed railway tunnels.

Journal

Advances in Structural EngineeringSAGE

Published: Aug 1, 2013

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