Interactive droplet vaporization and combustion: Approach from asymptotics
Interactive droplet vaporization and combustion: Approach from asymptotics
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交互式液滴汽化和燃烧：渐进方法
DOI：
10.1016/0360-1285(94)90013-2
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发表时间：
1994
影响因子：
29.5
通讯作者：
A. Umemura
中科院分区：
文献类型：
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作者：
A. Umemura
考虑到雾化燃烧在喷雾燃烧中的重要作用，根据目前发展起来的广义渐近理论，对雾滴汽化和燃烧相互作用的特性进行了综述，以便更深入地了解近大气压力下雾化燃烧的基本物理。重点讨论了群汽化/燃烧模式激发的几何意义。结果表明，群燃烧开始的判据可以用液滴分离距离与液滴半径之比L=(A 3n)−1 3与单液滴燃烧的不稳定参数ϵ=[2(ϱ∞ϱ∗)ln(1+B)]1 2之间的局部关系来表示，并从微观液滴相互作用的角度阐明了现有连续介质理论的正确性。
In recognition of its crucial role in spray combustion, the characteristic property of interactive droplet vaporization and combustion is reviewed in the light of a generalized asymptotic theory which is presently developed in order to gain deeper insight into the underlying physics of spray combustion at near-atmospheric pressures. Emphasis is placed on geometrical significance in excitation of group vaporization/combustion modes. It is shown that a criterion for the onset of group combustion is expressible in the form of a local relationship between the ratio of droplet separation distance to droplet radius, l=(a 0 3 n)− 1 3, and the unsteadiness parameter for single droplet combustion, ϵ=[2 (ϱ∞ ϱ∗) ln (1+ B)] 1 2. An attempt is also made to clarify the validity of the existing continuum theory from microscopic droplet interaction considerations.
Kazuyoshi NAKABE：“对有和没有气体燃料的液体燃料喷雾的详细火焰结构的实验研究”燃烧和火焰。
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