TY  - EJOU
AU  - Sun, Bailong 
AU  - Li, Tian 
AU  - Qin, Deng 
AU  - Li, Yan 

TI  - Effect of Railway Spacing on Aerodynamic Performance of 600 km/h Maglev Trains Passing Each Other
T2  - Fluid Dynamics \& Materials Processing

PY  - 2025
VL  - 21
IS  - 2
SN  - 1555-2578

AB  - High-speed maglev trains (HSMTs) can run at high running speeds due to their unique design. The pressure waves that these trains generate while passing each other are therefore very intense, and can even have safety implications. In order to reduce the transient impact of such waves, the standard <i>k-ε</i> turbulence model is used in this work to assess the effect of railway spacing on the aerodynamic loads, pressure and surrounding flow field of 600 km/h maglev trains passing each other in open air. The sliding mesh technique is used to determine the relative motion between the considered trains. The results show that the surface pressure is approximately linearly correlated with the square of the speed while the amplitude of the pressure wave on the train surface, side force, and rolling moment all have negative exponential relationships with the railway spacing.
KW  - Railway spacing; maglev train; aerodynamic; numerical simulation; two trains passing each other

DO  - 10.32604/fdmp.2024.055519