The flow character in the intake process would affect the spreading velocity of the flame, the stability of the combustion and its combustion efficiency.

进气冲程缸内形成的流场状态直接影响发动机燃烧过程中火焰的传播速度、燃烧的稳定性以及燃烧是否彻底，进而也影响着发动机的功率。

youdao

The ignition of the solid rocket motor (SRM) is a very complex physical and chemistry process, which is composed of three component phases: ignition delay, flame spreading and chamber filling.

固体火箭发动机的点火是一个十分复杂的物理化学过程，包括三个阶段：点火延迟、火焰传播和燃烧室气体充填。

youdao

Emphasis of this simulation is on the flame-spreading process in the early interior ballistic cycle, especially on the effect of the radial flow on axial results.

本文模拟的重点是装药点燃初期火焰传播过程，特别是径向效应和它对轴向效应的影响。

youdao