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The Influence of Intrinsic Instability on the Flame Velocity of Premixed Flames

机译:内在不稳定性对预混火焰火焰速度的影响

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摘要

The influence of intrinsic instability on the flame velocity is studied by two-and three-dimensional, unsteady calculations of reactive flows, which are based on the compressible Navier-Stokes equation. We consider three basic types of phenomena which are responsible for the intrinsic istability of premixed flames, i.e., the hydrodynamic, diffusive- thermal, and body-force effects. As intrinsic instability becomes stronger, the flame velocity of cellular flames is increased.
机译:通过基于可压缩的Navier-Stokes方程的二维和三维非定常流动,研究了固有不稳定性对火焰速度的影响。我们考虑了三种基本类型的现象,它们负责预混火焰的固有强度,即流体动力效应,扩散热效应和体力效应。随着固有不稳定性变强,蜂窝状火焰的火焰速度增加。

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