起飞航段飞机尾气扩散研究

Research on Exhaust Gas Dispersion in Initial Take-off Stage of Aircraft

随着我国航空运输的快速发展,飞机排放污染也越来越受社会关注,国内外对终端区内基于进离场飞行程序的污染物排放研究甚少。本文主要先评估起飞初始阶段尾气中污染物的排放,从而分析污染物的扩散情况。分析了ICAO基准排放模型和各污染物的基准排放指数,给出飞机的运动模型,计算出飞行程序运行的污染物排放量;建立飞机污染物扩散模型,分析污染物的扩散情况,主要分析风对污染物扩散的影响。以天津滨海国际机场VYK-01D离场飞行程序为例,利用MATLAB2010b进行仿真分析该飞行程序的污染物的扩散情况。仿真结果表明:在起飞的初始阶段各污染物的排放量与ICAO的基准数据误差在适当范围内;污染物的扩散接近于现实情况。

With the rapid development of air transport, the aircraft emission pollution is becoming the focus of concern both at home and abroad. So far, there is less research on the aircraft emission pollution in the terminal area. This article starts from evaluating the exhaust gas emission in initial take-off stage, and then extends to dispersion of the pollutants from the aircraft. On analysis of the emission standard and index of ICAO, the plane motion model is given and the emission amount is calculated. Finally, this paper cites the VYK-01D departure procedure used in Tianjin Binhai International Airport as an example to analyze its emission dispersion based on MATLAB2010b simulation. The simulation results show that the emission amount of the pollutant in initial flight stage is within the scope of ICAO standards.