基于动网格技术飞机尾气污染物扩散数值研究  

Numerical study on the diffusion of aircraft exhaust pollutant based on dynamic grid technology

作　　者：刘鑫 匡江红 LIU Xin;KUANG Jianghong(School of Air Transportation and School of Flying,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学航空运输学院(飞行学院),上海201620

出　　处：《智能计算机与应用》2025年第3期158-163,共6页Intelligent Computer and Applications

摘　　要：飞机运行中排放的尾气会对大气环境造成严重的影响,针对目前机场大气环境影响评估方面极少采用基于动网格技术的数值模拟的情况,本文应用动网格技术,对机场区域内飞机滑行阶段的尾气扩散进行了共24种工况的数值模拟。通过对比不同的风速和风向,分析了外流场对飞机尾气分布特性的影响。结果表明:风向作为影响飞机污染物扩散的主要因素之一,将完全主导污染物在机场大气环境中的扩散。不同风速对污染物扩散影响极大,大风速对飞机污染物具有良好稀释能力,反之小风速对飞机污染物的稀释能力比较弱。The exhaust emissions from aircraft operation can have a very serious impact on the atmospheric environment.In view of the fact that the numerical simulation based on dynamic grid technology is rarely adopted in current airport atmospheric environmental impact assessment,dynamic grid technology is used to simulate the aircraft exhaust gas diffusion in the airport area during taxiing stage for total of 24 working conditions in this paper.The influence of the external flow field on the distribution characteristics of aircraft exhaust is analyzed by comparing different wind speeds and directions.The results show that as one of the main factors affecting the diffusion of aircraft pollutants,the wind direction dominates the diffusion of pollutants in the atmospheric environment of the airport.Different wind speeds have a great influence on the diffusion of pollutants,high wind speed has good dilution ability for aircraft pollutants,while low wind speed has a relatively weak dilution ability for aircraft pollutants.

关 键 词：数值模拟 动网格技术 飞机污染物扩散 浓度 稀释能力 

分 类 号：F560[经济管理—产业经济]