Numerical Investigation of the Effect of various High-Speed Train Roof Configurations on Aerodynamic Noise

2019 ◽  
Author(s):  
Hogun Kim ◽  
Zhiwei Hu ◽  
David Thompson
Keyword(s):  
Numerical Investigation ◽  
High Speed ◽  
Aerodynamic Noise ◽  
High Speed Train

scholarly journals Experimental and Numerical Investigation on the External Aerodynamic Noise of High-Speed Train

2019 ◽  
Vol 53 (4) ◽  
pp. 129-138
Author(s):  
Shijie Jiang ◽  
Song Yang ◽  
Bohong Zhang ◽  
Bangchun Wen
Keyword(s):  
Numerical Investigation ◽  
High Speed ◽  
Aerodynamic Noise ◽  
High Speed Train

scholarly journals Numerical Investigation of the Deposition Characteristics of Snow on the Bogie of a High-Speed Train

2020 ◽  
Vol 16 (1) ◽  
pp. 41-53
Author(s):  
Lu Cai ◽  
Zhen Lou ◽  
Nan Liu ◽  
Chao An ◽  
Jiye Zhang
Keyword(s):  
Numerical Investigation ◽  
High Speed ◽  
High Speed Train

The Application of Numerical Simulation Technology in the External Aerodynamic Noise Field of High-Speed Train

2011 ◽  
Vol 101-102 ◽  
pp. 197-201 ◽  
Author(s):  
Zhen Gyu Zheng ◽  
Ren Xian Li
Keyword(s):  
Numerical Simulation ◽  
Boundary Condition ◽  
High Speed ◽  
Aerodynamic Noise ◽  
Dipole Source ◽  
Center Line ◽  
High Speed Train ◽  
Noise Field ◽  
Computational Fluid Dynamics Cfd ◽  
Flow Pressure

This paper utilized the Boundary Element Method (BEM) combined with the Computational Fluid Dynamics (CFD) based on Lighthill’s analogy in the high-speed train model, and converted the fluctuating flow pressure near the vehicle’s surface into the dipole source boundary condition in acoustics grid, eventually succeeded in completing the numerical simulation of aerodynamic noise field outside the high-speed train by introducing the dipole source boundary condition into the train BEM model. The results show that the main aerodynamic noise controlling area is 15-20 meters away from the track center line in the horizontal direction, and the Sound Press Level (SPL) is 63-72dB.

Sign in / Sign up

Export Citation Format

Share Document