The gas flame accelerating mechanism that obstacles are set along the flame propagation path can owe to the positive feedback of combustible process in onflow zone,which is induced by obstacles.

• 在沿火焰传播的通道上设置障碍物,对气相火焰的加速作用机理可归功于障碍物诱导的湍流区对燃烧过程的正反馈。