摘要
本文介绍了分形几何应用于汽油机燃烧模型的发展概况。国内外研究表明：汽油机燃烧火焰具有分形特性，因此用分形来描述火焰是恰当的。汽油机燃烧火焰的分形尺度大约在０．１３ ｍ ｍ 到几个ｍ ｍ 之间。利用分形建立的汽油机准维燃烧模型对发动机性能进行模拟可以很好地反映燃烧过程。
This paper gives a brief account of applying fractal geometry to SI engine combustion models. Because these research results show that the combustion flames of an SI engine have fractal character, it is suitable to describe turbulent premixed flames with fractal methods. Fractal thickness of turbulent premixed flames varies from 0.13mm to several millimeters. The simulation of engine performances by quasidimensional gasoline can give a good calculation result of combustion process.
