The effect of air flow generated by the movement of ahigh-speed train on the boundary layer
The effect of air flow generated by the movement of ahigh-speed train on the boundary layer
DOI:
https://doi.org/10.56143//ujmcs.v1i1.11Ключевые слова:
Flat Problem, High-Speed Train, Air Flow, Boundary Layer.Аннотация
In this paper, we investigate the flow around a high-speed train, both below and above it. Our aim is to ensure the safety of people and objects near high-speed trains by studying the air flow around them. Specifically, we aim to solve the problem of determining the velocity and pressure distributions in air around a moving train in a horizontal plane. We assume that the flow is two-dimensional, potential, and stationary, and use the Zhukovsky's conformal mapping method, the Christopher -- Schwartz integral, and Chaplygin's source and sink methods to obtain the velocity field. Based on this velocity field, we calculate pressures and the distance of the air flow from the train's surface. We also determine the force of the air flow on solid particles on a horizontal surface to assess the possibility of their separation from the surface.
Библиографические ссылки
[1] Hamidov A.A., Isanov R.Sh., Ruzmatov, M.I. (2008) The problem of the flow around a car by a flow of an ideal compressible fluid. Materials of the conference «On the prob-lems of land transport systems», Tashiit, 211-213.
[2] Isanov R.Sh. (2013) Two-Layer air flow in the flow of high-speed trains. In: «Science and progress of transport». Dnepropetrovsk, VDNUZT, Ukraine. 127-132.
[3] Kravets V.V., Kravets E.V. (2005) High-speed rolling stock and aerodynamics. Prob-lems and prospects of railway transport development: Abstr.
65-th Intern. Scient. Pract. Conf. (19.05–20.05.2005) / DOIT. Dnepropetrovsk, 31-32.
[4] Khamidov A.A., Balabin V.N., Isanov R.Sh., Yaronova N.V. (2013) Plane problem of a jet flow of high-speed trains. Problems of mechanics, No. 1-2. Tashkent.
[5] Ruize Hu, Caglar Oskay (2017) Nonlocal Homogenization Model for Wave Dispersion and Attenuation in Elastic and Viscoelastic Periodic Layered Media. Journal of Applied Mechanics, Vol. 84, No.3, 53-63.
[6] Pshenichnikov S. G. (2016) Dynamic problems of linear viscoelasticity for piecewise homogeneous bodies. Proceedings of the Russian Academy of Sciences, No. 1, 79-89.
[7] Willis J.R. (2009) Exact Effective Relations for Dynamics of a Laminated Body. Mech. Mater., 41(4), 385-393.
[8] Willis J.R. (2011) Effective Constitutive Relations for Waves in Composites and Met-amaterials. Proc. R. Soc. London, Ser. A, 467 (2131),
1865-1879.
[9] Willis J.R. (2012) The Construction of Effective Relations for Waves in a Composite. C. R. Mec., 340 (4-5), 181-192.
[10] Kim J. (2004) On Generalized Self-Consistent Model for Elastic Wave Propagation in Composites Materials. International Journal of Solids and Structures, Volume 41, 4349-4360.
[11] Verbis J.T., Kattis S.E., Tsinopoulos S. V., Polyzos D. (2001) Wave Dispersion and At-tenuation in Fiber Composites. Comput. Mech., 27 (3), 244-252.
