To simulate a cellular flame, rich (equivalent ratio Φ = 1.4) and lean (Φ = 0.9) propane-butane/air mixtures were used in a burner, which forms a stationary flame with a single cell. Experimental data on the temperature fields were obtained using the coherent anti-Stokes Raman scattering (CARS) method; the velocity components were measured using PIV (Particle Image Velocimetry) equipment. The terms of friction stress and static pressure in the momentum transfer equations were calculated using the balance method. It is shown that the equality of dynamic and static pressures associated with the thermal expansion of the combustion products is satisfied on the cellular flame surface. Flameout occurs when the magnitude of the pressure head becomes greater than the magnitude of a static pressure change. The shear stress profiles contain extrema, whose coordinates are associated with streamline curvatures and are close to the position of the heat release region at combustion of lean and rich mixtures.

为了模拟蜂窝状火焰，在燃烧器中使用丙烷（丁烷/空气比）浓（当量比Φ= 1.4）和稀薄（Φ= 0.9）的混合物，丙烷与丁烷/空气的混合物与单个单元形成固定的火焰。使用相干抗斯托克斯拉曼散射（CARS）方法获得了温度场的实验数据；使用PIV（颗粒图像测速）设备测量速度分量。动量传递方程中的摩擦应力和静压力项是使用平衡法计算的。结果表明，在蜂窝状火焰表面上，与燃烧产物的热膨胀相关的动压和静压相等。当压头的大小大于静态压力变化的大小时，发生熄火。剪切应力分布包含极值，