南京航空航天大学学报2025，Vol.57Issue(4)：630-639,10.DOI:10.16356/j.1005-2615.2025.04.005
涡喷动力烟雾发生器的烟雾扩散特性研究
Smoke Diffusion Characteristics for Smoke Generator Based on Turbojet
曹广州 1任锐 2孙洪亮1
作者信息
- 1. 南京航空航天大学无人机研究院,南京 210016
- 2. 南京航空航天大学能源与动力学院,南京 210016
- 折叠
摘要
Abstract
Based on the discrete phase model in the simulation software FLUENT,the smoke diffusion characteristics under high-speed jet action of a smoke generator powered by a turbojet engine are calculated.Spatial distribution of smoke mass concentration in high-speed engine exhaust flow field is studied.The effects of smoke flow rate,engine exhaust flow rate and wind speed on the distribution of smoke concentration are also studied.The results indicate that within the range of action of the engine exhaust flow,smoke spreads in a conical shape,and in the downstream,smoke easily spreads upward due to the reverse flow effect.Environmental winds below grade three can suppress the upward diffusion of smoke and cover the ground with smoke at a greater distance.The increase of smoke flow rate and engine exhaust flow rate both can increase the smoke concentration and provide a larger effective protection range.The research can provide reference for the design of smoke generators powered by turbojet.关键词
涡喷发动机/烟雾发生器/烟雾扩散/空间分布/离散相模型Key words
turbojet engine/smoke generator/smoke diffusion/space distribusion/discrete phase model分类
军事科技引用本文复制引用
曹广州,任锐,孙洪亮..涡喷动力烟雾发生器的烟雾扩散特性研究[J].南京航空航天大学学报,2025,57(4):630-639,10.
