Dynamics of turbulent gas combustion in a closed volume

Dynamics of turbulent gas combustion in a closed volume
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封闭体积内湍流气体燃烧动力学

DOI:
10.1007/bf00740305
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发表时间:
1977
期刊:
Combustion, Explosion and Shock Waves
影响因子:
--
通讯作者:
V. A. Suyushev
V. A. Suyushev
中科院分区:
--
文献类型:
--
作者:
V. S. Babkin;V. Babushok;V. A. Suyushev

文献摘要

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对关系式(3)的分析表明,它只包含新鲜气体和燃烧产物的热力学参数。在其推导过程中,没有对气体燃烧机制和容器形状和尺寸的特征进行任何假设,即,所述关系同样适用于层流和湍流过程。因此,(2)中的导数(dn/do)i可以用(3)式计算,现在从(2)式中可以看出,如果法向火焰速度已知,则湍流模式下的总燃烧表面可以用压力增长的实验曲线求出。这种情况允许通过使用Guy-Michelson原理将湍流火焰速度引入到考虑中,根据Guy-Michelson原理,在我们的情况下,湍流速度等于法向速度与湍流和层流模式中的前表面的大小之比的乘积:
An analysis of the relatienship (3) shows that it contains only the thermodynamic parameters of the fresh gas and the combustion products. No assumptions on the gas-combustion mechanism and the characteristics of the vessel shape and size were used in its derivation, ie, the relationship mentioned refers equally to laminar and turbulent processes. Therefore, the derivative (dn/do) i in (2) can be calculated by means of (3).Now it is seen from (2) that if the normal flame velocity is known, then the total combustion surface in the turbulent mode can be found by means of the experimental curve of pressure growth. This circumstance permits introduction of the turbulent flame velocity into the considerations by using the Guy--Michelson principle, according to which in our case the turbulent velocity equals the product of the normal velocity and the ratio of the magnitudes of the front surfaces in the turbulent and laminar modes: