Inviscid fluid flow around high-speed trains passing by in open air

Abstract

Aerodynamic effects during high-speed train running must be evaluated in order to avoid safety and comfort problems. This becomes all the more important as cruising speed increases. Risks are also greater in the case of trains passing by each other. However, experimental fittings adapted to the investigation of train passing-by and experimentations on real track lines are complicated and very expensive. A numerical investigation was attempted in order to evaluate unstationary forces on trains in open air regarded as an inviscid fluid. A computer code was developed on the basis of a singularity method: it includes possible compressibility and wake effects. Results were obtained concerning local and global aerodynamic loads acting on trains passing by each other.

Keywords

panel method high-speed train aerodynamics passing-by sources doublets wake

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References

Hess

J. L.

Smith

A. M. O.

Calculation of non-lifting potential flow about arbitrary three-dimensional bodies

J. Ship Res., 8 September 1964.

Piéchowiak

Aérodynamique des trains à grande vitesse. In Proceedings of 12th French Mechanics Conference, Strasbourg, 1995.

Coulmy

Marty

Luu

T. S.

Le TGV mis en équation

La Recherche, January 1982, (129).

Morrow

T. B.

Prediction of the aerodynamic pressure distribution for vehicles moving near the ground. In Proceedings of ASME Aerodynamics of Transportation Conference, Niagara Falls, New York, 18-20 June 1979.

Gawthorpe

R. G.

Aerodynamic problems of high-speed trains running on conventional tracks. Von Karman Institute for Fluid Dynamics Lecture Series 48, High Speed Ground Vehicles, 10-14 April 1972.

Katz

Plotkin

Low-speed aerodynamics, from wing theory to panel methods. McGraw-Hill Series Aeronautical and Aerospace Engineering, 1991.

Reinhardt-Piéchowiak

Contribution à l'étude aérodynamique des trains à grande vitesse. Thése de Doctorat, Universitè de Valenciennes, 1996.

Carmichael

R. L.

Erickson

L. L.

PAN AIR-a higher order method for predicting subsonic or supersonic linear potential flows about arbitrary configurations. In Proceedings of AIAA 14th Fluid and Plasma Dynamics Conference, Palo Alto, California, 23-25 June 1981.

Nikolitsch

Hennig

Godon

Aerodynamic study of high velocity trains in viscous and inviscid flow. In Proceedings of International Symposium on

Technological Innovation in Guided Transports, Lille, 28-30 September 1993.

10.

Papenfuss

H.-D.

Anwendung der Zonenmethode auf die Umströmung von Kraftfahrzeugen mit Unterschiedlicher Heckform

Jahrbuch der DGLR, 1992, 2, paper 92-03-181.

11.

Reinhardt-Piéchowiak

Ducruet

Modèle de sillage de corps épais applicable à la méthode des singularités

Trans. Can. Soc. for Mech. Engng, 1998, 22 (1).

12.

Van Dyke

An Album of Fluid Motion, 1982 (Parabolic Press, Stanford, California).

13.

Rebuffet

Aérodynamique expérimentale. Lib. Polytech. Ch. Béranger, 1950.

14.

Achenbach

Experiments on the flow past a sphere at very high Reynolds numbers

J. Fluid Mech., 1972, 54 (3).

15.

Sockel

Aerodynamics of trains In Handbook of Fluid Dynamics and Fluid Machinery (Eds Schetz

J. A.

Fuhs

A. E.

), 1996, Vol. III, pp. 1721–1741 (New York).2

16.

Ogawa

Fujii

Numerical investigation of three-dimensional compressible flows induced by a train moving into a tunnel

Computers and Fluids, 1997, 26 (6), 565–585.