非驻定过滤燃烧的均相模拟  

Pseudo-homogeneous Modeling of Un-stabilized Filtration Combustion

作　　者：张根烜[1] 赵平辉[2] 朱旻明[2] 陈义良[2] 

机构地区：[1]中国电子科技集团公司第三十八研究所,安徽合肥230031 [2]中国科学技术大学热科学和能源工程系,安徽合肥230027

出　　处：《计算物理》2007年第5期605-611,共7页Chinese Journal of Computational Physics

基　　金：国家自然科学基金(50506028)资助项目

摘　　要：基于一维层流反应流模型,构建了新的准稳态均相模型,并对堆积床内充分发展后的低速过滤贫燃过程进行数值模拟.将计算结果与传统双相模型进行比较,分析弥散效应和化学反应机理等对计算结果的影响,并开展输运项分析;将均相模型的数值结果与准稳态和瞬态的理论结果进行比较,验证理论方法.　Based on a one-dimensional laminar reactive flow model,a new pseudo-homogeneous model is constructed and adopted in quasi-steady-state simulation of low-velocity filtration combustion in a packed bed under fully developed conditions.Influences of dispersion effect and reaction mechanisms are discussed in detail by comparsion of the conventional two-phase model with the pseudo-homogeneous model.Effects of various transport terms on different conservation equations are studied.The performance of quasi-steady-state and transient analytical solutions is evaluated by comparing with pseudo-homogeneous model.

关 键 词：堆积床 过滤燃烧 均相 准稳态 

分 类 号：TK16[动力工程及工程热物理—热能工程]