强侧风作用下带制动风翼板高速列车气动力和力矩特性
Aerodynamic force and moment characteristics of high-speed trains with brake wind plates under strong crosswind
谢红太 1王红2
作者信息
- 1. 兰州交通大学机电工程学院,甘肃兰州 730070;华设设计集团股份有限公司铁道规划设计研究院,江苏南京 210014
- 2. 兰州交通大学机电工程学院,甘肃兰州 730070
- 折叠
摘要
基于三维定常不可压的黏性流场N-S(Navier-Stokes)及k-ε(湍动能-耗散率)双方程模型,采用计算流体动力学方法对强侧风作用下带制动风翼板高速列车的气动力和力矩特性,分别从不同运行速度等级及不同偏航角列车所受气动阻力、升力、侧向力、滚转力矩、偏航力矩及俯仰力矩等方面进行了数值模拟分析,同时与不带制动风翼板高速列车所受气动力和力矩特性进行对比.
Abstract
Based on the three-dimensional steady and incompressible viscous flow field N-S(Navier-Stokes)and k-e(turbulent kinetic energy-dissipation rate)double equation model,computational fluid dynamics method is adopted to analyze the aerodynamic and moment characteristics of high-speed trains with brake wind plates under strong crosswind.The performances of the aerodynamic resistance,lift,lateral force,rolling moment,yaw moment and pitching moment of trains with different running speed classes and different yaw angles are numerically simulated and analyzed.At the same time,the aerodynamic forces and moments of high-speed trains with and without brake wind plates are calculated and explained in detail.
关键词
高速列车/空气动力学/气动特性/制动风翼板/侧风Key words
high-speed trains/aerodynamics/aerodynamic characteristics/brake wind plate/crosswind引用本文复制引用
基金项目
国家自然科学基金(72061022)
甘肃省重点研发计划(23YFGA0040)
出版年
2024
NETL
NSTL
万方数据