预混湍流火焰结构的分形特征

The Fractal Nature of Turbulent Premixed Flame Structure

使用分形几何学的方法，对由高速纹影摄影法获得的容弹内预混湍流火焰照片进行了处理．结果表明，容弹内预混湍流火焰结构具有分形特征，可以用分数维数来定量描述其折皱。

The fractal geometry method is used to analyze the high speed schlieren film of turbulent premixed combustion for a constant volume combustion bomb. The fractal dimension can be used to describe the extent of wrinkling degree quantitatively and to exhibits a relation for the root mean square turbulent velocity.