%0 Journal Article
%T The Numerical Simulation of Aerodynamic Noise Generated by CRH3 Train¡¯s Head Surface
%A Fanguo Kong
%A Jian Wang
%J Open Journal of Applied Sciences
%P 501-508
%@ 2165-3925
%D 2015
%I Scientific Research Publishing
%R 10.4236/ojapps.2015.58049
%X In order to solve the increasingly serious problem of railway noise which caused by the train¡¯s speed-up, especially the problem of the dominant aerodynamic noise of the high-speed train, it¡¯s necessary to have a numerical simulation analysis for the CRH3 train¡¯s three dimensional flow model. Setting monitoring points in the positions that the surface curvature changes significantly, using the Large Eddy Simulation Method (LES) to have a transient simulation for the CRH3 train which is in the speed of 300 km/h and 350 km/h, applying the acoustics theory of Lighthill-Curle to predict the aerodynamic noise caused by the head of the CRH3 train. The generation and distribution of the train¡¯s aerodynamic noise are analyzed, so as to provide some reasonable suggestions for the design of the train body.
%K Aerodynamic Noise
%K Three Dimensional Flow Mode
%K Monitoring Points
%K Large Eddy Simulation (LES)
%K Lighthill-Curle
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=59239