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/lp/sage/a-generalized-numerical-simulation-method-for-pressure-waves-generated-VTgnUT3nTW
- 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 Engineering – SAGE
Published: Aug 1, 2013