【摘要】 通过与稳态的逆流燃烧器类比,得到了一个简化的理论解,并与实验结果进行了对比。该解适用于绝热的惰性多孔介质内往复流动下的超绝热燃烧。简化的理论解包括两个常微分方程,方程中包含所有的控制参数,因此有助于深入理解这些控制参数对燃烧器的影响。与数值模拟的结果相比,多孔介质固体的温度曲线可以用简化解的分段线性函数很好的估算,利用简化的理论解求得的燃烧器内温度的最大值与实验值取得了相同的趋势,但是通常比实验值大,二者的误差大约是20%。更多还原

【Abstract】 A simplified theoretical solution has been obtained through an analogy with stable-state reversed-flow burners followedby a comparison with experimental results.Such a solution is applicable to super-adiabatic combustion in adiabatic inertial porous media under the condition of reciprocal flows.The solution under discussion comprises two constant differential equations,in which all control parameters have been included,thus contributing to an in-depth understanding of the effect of these control parameters on the characteristics of burners.Compared with the results of a numerical simulation,the temperature curves of porous-medium solids can be predicted exceedingly well by use of sectioned linear functions of the simplified solution.The maximal temperatures inside the burners obtained by making use of the simplified theoretical solution exhibit an identical tendency as that of the experimental values.However,the above maximal temperatures are usually greater than the experimental ones with the error between them being assessed at about 20%.更多还原