采用小尺寸燃烧房,在不同窗口尺寸下测量外界风作用下的窗口处的外部火焰高度。基于无风条件下的窗口矩形火源理论,通过卷吸速率分析外界风作用下的外部火焰高度,并使用火焰高度的修正因子表述外界风对外部火焰高度的影响,提出火焰高度的无量纲表达形式。修正系数可结合实验数据计算得出,修正模型拟合度较好。 Small size combustion chamber is used to measure the external flame height at the window under external wind at different window sizes. Based on the theory of rectangle rectangular fire source under no-wind condition, the outer flame height under external wind was analyzed by the entrainment velocity, and the influence of external wind on the external flame height was expressed by the correction factor of flame height. The dimensionless expression of flame height form. The correction coefficient can be calculated with the experimental data, and the correction model is better.