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A numerical investi...
A numerical investigation on the improvement of anti-snow performance of the bogies of a high-speed train
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- Wang, Jiabin (författare)
- Central South University
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- Zhang, Yan (författare)
- Central South University
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- Zhang, Jie, 1987 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Liang, Xifeng (författare)
- Central South University
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- Krajnovic, Sinisa, 1970 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Gao, Guangjun (författare)
- Central South University
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(creator_code:org_t)
- 2019-12-19
- 2020
- Engelska.
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Ingår i: Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. - : SAGE Publications. - 0954-4097 .- 2041-3017. ; 234:10, s. 1319-1334
- Relaterad länk:
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- In this paper, numerical simulations combining unsteady Reynolds-averaged Navier-Stokes (URANS) simulation and the discrete phase model are used to study the application of countermeasure for snow accumulation in the regions of bogie cavities of a high-speed train. The influence of the cowcatcher heights and guide structure configurations on the flow features and snow accumulation was studied. The results of the study show that the cowcatcher with a downward elongation of 4% of the distance between the two axles decreases the snow accumulation in the first and the second bogie regions by about 56.6% and 13.6%, respectively. Furthermore, the guide structures have been found to significantly alter the velocity and pressure distribution in the second bogie region, resulting in a relatively large snow-accumulation reduction. The deflector is found to perform better in reducing snow accumulation when compared to the diversion slots. The cowcatcher, elongated in the downward direction, and the deflector proved to be a good countermeasure for snow accumulation around the bogies of high-speed trains operating in snowy weather conditions. © IMechE 2019.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Farkostteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Vehicle Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Nyckelord
- Bogies
- snow reduction
- guide structure
- high-speed train
- numerical simulation
- cowcatcher height
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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