CLC number:
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2024-07-24
Cited: 0
Clicked: 1109
Citations: Bibtex RefMan EndNote GB/T7714
Nianxun LI, Tian LI, Zhiyuan DAI, Deng QIN, Jiye ZHANG. Effect of streamlined nose length on aerodynamic performance of high-speed train with a speed of 400 km/h[J]. Journal of Zhejiang University Science A, 2024, 25(7): 525-540.
@article{title="Effect of streamlined nose length on aerodynamic performance of high-speed train with a speed of 400 km/h",
author="Nianxun LI, Tian LI, Zhiyuan DAI, Deng QIN, Jiye ZHANG",
journal="Journal of Zhejiang University Science A",
volume="25",
number="7",
pages="525-540",
year="2024",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2300301"
}
%0 Journal Article
%T Effect of streamlined nose length on aerodynamic performance of high-speed train with a speed of 400 km/h
%A Nianxun LI
%A Tian LI
%A Zhiyuan DAI
%A Deng QIN
%A Jiye ZHANG
%J Journal of Zhejiang University SCIENCE A
%V 25
%N 7
%P 525-540
%@ 1673-565X
%D 2024
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2300301
TY - JOUR
T1 - Effect of streamlined nose length on aerodynamic performance of high-speed train with a speed of 400 km/h
A1 - Nianxun LI
A1 - Tian LI
A1 - Zhiyuan DAI
A1 - Deng QIN
A1 - Jiye ZHANG
J0 - Journal of Zhejiang University Science A
VL - 25
IS - 7
SP - 525
EP - 540
%@ 1673-565X
Y1 - 2024
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2300301
Abstract: The streamlined nose length (SNL) plays a crucial role in determining the aerodynamic performance of high-speed trains. An appropriate SNL can not only effectively reduce the magnitude of aerodynamic drag and lift forces, but also improve the performance of the high-speed train in tunnel passing and crosswind circumstances. In this study, a numerical simulation of the aerodynamic performance of high-speed trains at a speed of 400 km/h, with varying SNLs, is conducted using thek-ω shear stress transport (SST) turbulence model. The different SNLs include 6.0, 7.0, 8.0, 9.0, 9.8, 12.0, 15.0, and 18.0 m. In order to validate the accuracy of the numerical simulation, its results are compared with wind tunnel test data obtained from the literature. numerical simulation is carried out using compressible and incompressible gases to determine the effect of gas compressibility on results. The impact of SNL on the aerodynamic performance of the trains is analyzed in terms of aerodynamic forces, velocity, and pressure distributions. In comparison to the original train, the train with a 6.0 m SNL experienced a 10.8% increase in overall aerodynamic resistance. Additionally, the lift forces on the head and tail cars increased by 35.7% and 75.5%, respectively. On the other hand, the train with an 18.0 m SNL exhibited a 16.5% decrease in aerodynamic drag. Furthermore, the lift forces on the head and tail cars decreased by 21.9% and 49.7%, respectively. The aerodynamic drag force of the entire train varies linearly with the SNL, while the aerodynamic lift of the tail car follows a quadratic function in relation to the SNL.
[1]BritcherCP,WellsJM,RenaudB,et al.,2012.Aerodynamics of urban maglev vehicles.Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit,226(6):561-567.
[2]ChenG,LiXB,LiuZ,et al.,2019.Dynamic analysis of the effect of nose length on train aerodynamic performance.Journal of Wind Engineering and Industrial Aerodynamics,184:198-208.
[3]ChenZW,LiuTH,JiangZH,et al.,2018.Comparative analysis of the effect of different nose lengths on train aerodynamic performance under crosswind.Journal of Fluids and Structures,78:69-85.
[4]ChoiJK,KimKH,2014.Effects of nose shape and tunnel cross-sectional area on aerodynamic drag of train traveling in tunnels.Tunnelling and Underground Space Technology,41:62-73.
[5]DaiZY,LiT,ZhangWH,et al.,2023.Research progress of aerodynamic multi-objective optimization on high-speed train nose shape.Computer Modeling in Engineering & Sciences,137(2):1461-1489.
[6]EzojiR,TalaeeMR,2022.Analysis of overturn of high-speed train with various nose shapes under crosswind.Iranian Journal of Science and Technology, Transactions of Mechanical Engineering,46(2):297-310.
[7]HuX,DengZG,ZhangJW,et al.,2022.Aerodynamic behaviors in supersonic evacuated tube transportation with different train nose lengths.International Journal of Heat and Mass Transfer,183:122130.
[8]HuangS,LiZW,YangMZ,2019.Aerodynamics of high-speed maglev trains passing each other in open air.Journal of Wind Engineering and Industrial Aerodynamics,188:151-160.
[9]HuoXS,LiuTH,ChenZW,et al.,2021.Comparative analysis of the aerodynamic characteristics on double-unit trains formed by different types of high-speed train.Journal of Wind Engineering and Industrial Aerodynamics,217:104757.
[10]IglesiasEL,ThompsonDJ,SmithMG,2017.Component-based model to predict aerodynamic noise from high-speed train pantographs.Journal of Sound and Vibration,394:280-305.
[11]KikuchiK,IidaM,FukudaT,2011.Optimization of train nose shape for reducing micro-pressure wave radiated from tunnel exit.Journal of Low Frequency Noise, Vibration and Active Control,30(1):1-19.
[12]KimTK,KimKH,KwonHB,2011.Aerodynamic characteristics of a tube train.Journal of Wind Engineering and Industrial Aerodynamics,99(12):1187-1196.
[13]LiT,ZhangJY,ZhangWH,2013.A numerical approach to the interaction between airflow and a high-speed train subjected to crosswind.Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering),14(7):482-493.
[14]LiT,QinD,ZhouN,et al.,2022.Step-by-step numerical prediction of aerodynamic noise generated by high speed trains.Chinese Journal of Mechanical Engineering,35(1):28.
[15]LiT,LiangH,ZhangJ,et al.,2023.Numerical study on aerodynamic resistance reduction of high-speed train using vortex generator.Engineering Applications of Computational Fluid Mechanics,17(1):e2153925.
[16]LiXH,DengJ,ChenDW,et al.,2011.Unsteady simulation for a high-speed train entering a tunnel.Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering),12(12):957-963.
[17]LiXL,ChenG,ZhouD,et al.,2019.Impact of different nose lengths on flow-field structure around a high-speed train.Applied Sciences,9(21):4573.
[18]LiuX,DengJ,ZhengY,et al.,2013.Impact of aerodynamics of pantograph of a high-speed train on pantograph-catenary current collection.Journal of Zhejiang University (Engineering Science),47(3):558-564(in Chinese).
[19]MengS,ZhouD,XiongXH,et al.,2022.The effect of the nose length on the aerodynamics of a high-speed train passing through a noise barrier.Flow, Turbulence and Combustion,108(2):411-431.
[20]MiaoXJ,GaoGJ,WangJB,et al.,2023.Effect of low operating temperature on the aerodynamic characteristics of a high-speed train.Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering),24(3):284-298.
[21]NiuJQ,WangYM,ZhangL,et al.,2018.Numerical analysis of aerodynamic characteristics of high-speed train with different train nose lengths.International Journal of Heat and Mass Transfer,127:188-199.
[22]RaghunathanRS,KimHD,SetoguchiT,2002.Aerodynamics of high-speed railway train.Progress in Aerospace Sciences,38(6-7):469-514.
[23]ShaoXM,WanJ,ChenDW,et al.,2011.Aerodynamic modeling and stability analysis of a high-speed train under strong rain and crosswind conditions.Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering),12(12):964-970.
[24]SunZX,WangMY,WeiLY,et al.,2021.Aerodynamic shape optimization of an urban maglev train.Acta Mechanica Sinica,37(6):954-969.
[25]WhiteFM,2006.Viscous Fluid Flow.3rd Edition.McGraw-Hill,New York, USA, p.24.
[26]XiaoYG,QunY,SunL,et al.,2014.Longitudinal type-line optimization of high-speed train for low aerodynamic noise.Journal of Central South University,21(6):2494-2500.
[27]XiongHB,YuWG,ChenDW,et al.,2011.Numerical study on the aerodynamic performance and safe running of high-speed trains in sandstorms.Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering),12(12):971-978.
[28]YuMG,ZhangJY,ZhangWH,2013.Multi-objective optimization design method of the high-speed train head.Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering),14(9):631-641.
[29]ZampieriA,RocchiD,SchitoP,et al.,2020.Numerical-experimental analysis of the slipstream produced by a high speed train.Journal of Wind Engineering and Industrial Aerodynamics,196:104022.
[30]ZhangL,ZhangJY,LiT,et al.,2017.Multi-objective aerodynamic optimization design of high-speed train head shape.Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering),18(11):841-854.
[31]ZhangXH,JiangY,LiT,2020.Effect of streamlined nose length on the aerodynamic performance of a 800 km/h evacuated tube train.Fluid Dynamics & Materials Processing,16(1):67-76.
Open peer comments: Debate/Discuss/Question/Opinion
<1>