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

doi:10.3969/j.issn.1000-1093.2018.02.009

Abstract

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

CLC Number:

TJ43⁺9.2

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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第39卷
第2期2018 年2月兵工学报ACTA
ARMAMENTARIIVol.39No.2Feb.2018

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