坦克行驶扬尘浓度分布特性数值模拟研究

doi:10.3969/j.issn.1000-1093.2018.02.009

兵工学报 ›› 2018, Vol. 39 ›› Issue (2): 276-282.doi: 10.3969/j.issn.1000-1093.2018.02.009

坦克行驶扬尘浓度分布特性数值模拟研究

陈慧敏，冯星泰，王凤杰，刘伟博

（北京理工大学机电动态控制重点实验室，北京 100081）

收稿日期:2017-06-20 修回日期:2017-06-20 上线日期:2018-04-04
作者简介:陈慧敏（1973—），男，副教授，硕士生导师。E-mail: laserchm@126.com
基金资助:
国家自然科学基金委员会与中国工程物理研究院联合基金项目（U1630131）

Numerical Simulation on Concentration Distribution Characteristics of Dust Raised during Tank Moving

CHEN Hui-min, FENG Xing-tai, WANG Feng-jie, LIU Wei-bo

(Science and Technology on Electromechanical Dynamic Control Laboratory, Beijing Institute of Technology, Beijing 100081, China)

Received:2017-06-20 Revised:2017-06-20 Online:2018-04-04

摘要/Abstract

摘要： 战场扬尘浓度分布对激光引信抗扬尘干扰研究具有重要意义。基于计算流体力学方法，应用重正化群k-ε模型和离散相模型，数值模拟单辆坦克行驶产生的扬尘分布规律。分析计算域内不同截面的扬尘浓度分布云图和平均浓度随时间的变化趋势，得到坦克不同行驶速度对扬尘浓度分布的影响规律。结果表明：坦克尾部扬尘浓度在近坦克尾部变化更迅速，而在远离坦克尾部区域扬尘浓度值动态范围更大；重力对扬尘扩散的影响可以忽略；坦克行驶速度越快，则扬尘扩散范围越大，且在垂直方向上扬尘浓度呈指数规律衰减。

关键词: 坦克, 扬尘浓度, 重正化群k-ε模型, 离散相模型, 数值模拟

Abstract: The distribution of dust concentration in battlefield plays an important role in the study of anti-dust interference of laser fuze. Based on the computational fluid dynamics method, the RNG k-ε model and the discrete phase model are used to simulate the distribution rule of dust raised during tank moving. The dust distribution graphics and the changes of mean concentration with time on different cross sections in the computational domain are analyzed, and the influence rule of moving speeds of tank on the concentration distribution of raised dust is obtained. The results show that the dust concentration near tank tail changes more rapidly, while the dynamic range of dust concentration far away from the rear area of tank is larger. The influence of gravity on dust diffusion can be neglected, and the area of dust distribution is larger when the tank moves faster. Besides, the dust concentration decays exponentially in vertical direction. Key

Key words: tank, dustconcentration, RNGk-εmodel, discretephasemodel, numericalsimulation

中图分类号:

TJ43⁺9.2

陈慧敏，冯星泰，王凤杰，刘伟博. 坦克行驶扬尘浓度分布特性数值模拟研究[J]. 兵工学报, 2018, 39(2): 276-282.

CHEN Hui-min, FENG Xing-tai, WANG Feng-jie, LIU Wei-bo. Numerical Simulation on Concentration Distribution Characteristics of Dust Raised during Tank Moving[J]. Acta Armamentarii, 2018, 39(2): 276-282.

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坦克行驶扬尘浓度分布特性数值模拟研究

Numerical Simulation on Concentration Distribution Characteristics of Dust Raised during Tank Moving

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