A comprehensive review on polymer composites in railway applications

P Jagadeesh, M Puttegowda, OP Oladijo… - Polymer …, 2022 - Wiley Online Library
The main challenging things in railway vehicles are to reduce the consumption of energy for
transportation and to decrease the emission of harmful gasses by limiting the consumption …

Review of research on high-speed railway aerodynamics in China

HQ Tian - Transportation Safety and Environment, 2019 - trid.trb.org
High-speed railway aerodynamics is the key basic science for solving the bottleneck
problem of high-speed railway development. This paper systematically summarizes the …

[HTML][HTML] Aerodynamics of railway train/tunnel system: A review of recent research

J Niu, Y Sui, Q Yu, X Cao, Y Yuan - Energy and Built Environment, 2020 - Elsevier
The coupling and complexity of railway train/tunnel system are further aggravated by
increasing train speed, which produces a series of aerodynamics problems, such as …

Numerical study on the aerodynamic pressure of a metro train running between two adjacent platforms

J Niu, D Zhou, X Liang, T Liu, S Liu - Tunnelling and Underground Space …, 2017 - Elsevier
As a fast and efficient short distance transportation means, the subway line has been built
and expanded in an increasing number of cities. The pressure in the tunnel fluctuates …

Oblique tunnel portal effects on train and tunnel aerodynamics based on moving model tests

L Zhang, M Yang, X Liang, J Zhang - Journal of Wind Engineering and …, 2017 - Elsevier
The objective of this study was to investigate the effects of oblique tunnel portals on train and
tunnel aerodynamics using a 1: 20 scale moving model device. Transient pressure and …

Numerical simulation of the Reynolds number effect on the aerodynamic pressure in tunnels

J Niu, D Zhou, X Liang, S Liu, T Liu - Journal of Wind Engineering and …, 2018 - Elsevier
With an increase in train speed, the aerodynamic effects caused by the train could escalate,
especially for a train running in a tunnel. A number of large transient pressure waves are …

Field study on the interior pressure variations in high-speed trains passing through tunnels of different lengths

TH Liu, XD Chen, W Li, TZ Xie, ZW Chen - Journal of Wind Engineering and …, 2017 - Elsevier
As a high-speed train passes through a tunnel, the intense aerodynamic pressure wave
outside the train penetrates into the passenger compartments, changing the pressure …

Model experiments on area optimization of multiple openings of tunnel hoods to reduce micro-pressure waves

T Miyachi, T Fukuda - Tunnelling and Underground Space Technology, 2021 - Elsevier
Optimization of tunnel hood openings is one of the most important technologies that has
been developed to effectively reduce micro-pressure waves (MPWs) on high-speed railway …

Matching of multiple aerodynamic parameters for railway train/tunnel systems to ensure critical airtightness performance of high-speed trains

J Niu, D Lv, R Li, D Zhou, Y Wang, X Yang - Structural and …, 2023 - Springer
This study attempts to employ a multi-objective optimization algorithm and surrogate model
technology to deal with the reasonable matching of key aerodynamic parameters of railway …

Influence of the geometry of equal-transect oblique tunnel portal on compression wave and micro-pressure wave generated by high-speed trains entering tunnels

L Zhang, K Thurow, N Stoll, H Liu - Journal of Wind Engineering and …, 2018 - Elsevier
Pressure gradient and micro-pressure wave induced by a high-speed train entering a tunnel
were investigated for the parametric design of equal-transect oblique tunnel portal. A moving …