Design And Research Of Simulation The High Speed Rail Specific Location Devine Of The Snowproof

With the continuous development of high-speed train applications related to our high-speed rail technology continues to improve, the manufacturing technology continues to improve, making high-speed rail construction and a new high mileage. In high railway network across the country, and many areas in the northern winter, due to climatic reasons,can easily lead to high-speed rail car at the bottom of the snow, seriously affect the use of high-speed rail car at the bottom of the sensor, such as a Doppler sensor, large areas of snow or even will cause the ice off the rails accident smashed so many areas in the northern cold season can only slow down high-speed rail operation, this paper theoretical analysis and experimental verification, study the formation mechanism of high-speed rail at the bottom of the snow, and by changing the local modeling,effective reduce the amount of local snow. This study is mainly to solve the Doppler radar sensor snow cover problems.For a high-speed train radome snow phenomenon, the first use CFD basic theory, the Yang snow flakes particles the forces for the car at the bottom of the snow Young law modeled. Realizable model based on mixed grid solutions using discrete phase model(DPM) on the mechanism of high-speed rail car attached snowflake outflow field analysis, the generation mechanism attached to the car at the bottom of snowflakes. Through the installation of exterior styling, to prevent snow surface were analyzed by simulation analysis and experimental verification, modeling confirmed that the structure can effectively reduce the high-speed train compartment at the bottom of the local snow phenomenon. Late for the locomotive to prevent snow adhesion-related heating control method is proposed, and the use of modern design methods to optimize the design, engineering solutions for the high-speed locomotives to prevent snow affecting attachment plate to provide a reference in the actual operating environment. Due to the limited level,the corresponding article summarizes the results and achieved, there are still some limitations, the future could be improved with more advanceddynamic mesh model by introducing more detailed.The main contents: current situation affecting the development of high-speed rail, snow and other natural phenomena inevitably run on high-speed rail safety, the analysis of the force of the snow particles and describes the basic theory of CFD to establish the mechanism of aerodynamic analysis model Yang snow. For high-speed rail car attached to the bottom of the snow numerical simulation model based on Realizable mixed grid solutions using discrete phase model(DPM) for high-speed rail car attached to the mechanism of outflow field snowflake analyze the impact of the snow after the installation design modeling trajectories generated the use of modern design methods for parameter optimization.