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以直段空腔和弯曲空腔为研究对象,在相同的初始条件下试验了两者之间火焰传播的特性,研究了强离心力条件下的扩散射流火焰特性.通过比较分析,在弯曲空腔中离心力场的影响下,扩散射流火焰受到浮升力的作用,以“焰泡迁移”的方式在主流中传播,加快了火焰传播速度,削弱了横向气流的干扰作用,使扩散射流火焰顺利地与空气掺混反应,增加了其在横向气流中的穿透深度.
Taking the straight section cavity and the curved cavity as the research object, the flame propagation characteristics between the two were tested under the same initial conditions, and the flame characteristics of the diffusing jets under strong centrifugal force were studied.After comparative analysis, Under the influence of the centrifugal force field, the diffusion jet flame is affected by the buoyancy force and propagates in the mainstream in the manner of “flame bubble migration ”, accelerating the propagation speed of the flame and weakening the interference effect of the transverse air flow so as to smooth the diffusion jet flame Blending with air increases its penetration depth in the cross-flow.