Bifurcation Phenomena in Burner-Stabilized Premixed Flames
Bifurcation Phenomena in Burner-Stabilized Premixed Flames
复制标题
燃烧器稳定预混火焰中的分叉现象
DOI：
10.1080/00102208008952379
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发表时间：
1980
影响因子：
1.9
通讯作者：
S. Margolis
中科院分区：
文献类型：
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作者：
S. Margolis
摘要在大活化能的渐近极限下，研究了任意刘易斯数和化学计量比的等压燃烧器稳定预混火焰的一维稳定性。假设燃料和氧化剂反应生成产物的一步不可逆化学反应，用线性稳定性分析方法计算了刘易斯数-活化能空间中的中性稳定性边界随来流速度的变化（或等效地，燃烧温度）主要结果是，虽然稳态绝热火焰对于典型参数值可能是稳定的，充分小于绝热火焰速度的进入流速的值是不稳定的，以至于不稳定区域对于许多火焰变得可行。因此，如果所有其他参数是固定的，存在这样的火焰的临界值的传入流速的时间渐近解的时间依赖性问题的分叉从nontriv…
Abstract The one-dimensional stability of an isobaric burner-stabilized premixed flame is investigated for arbitrary Lewis number and stoichiometry in the asymptotic limit of large activation energy. Assuming a one-step irreversible chemical reaction in which fuel and oxidizer react to form a product, a linear stability analysis is Used to calculate the neutral stability boundary in Lewis number-activation energy space as a function of incoming flow velocity (or equivalently, the burned temperature) The major result is that although a steady-state adiabatic flame is likely to be stable for typical parameter values, a value of the incoming flow velocity sufficiently less than the adiabatic flame speed is destabilizing to the extent that the unstable region becomes feasible for many flames. Consequently, if all other parameters are fixed, there exists for such flames a critical value of the incoming flow velocity at which the time-asymptotic solution to the time-dependent problem bifurcates from the nontriv...