平板微燃烧器中过滤燃烧的数值模拟研究  

Numerical Study on Filtration Combustion in a Porous Micro-Combustor

作　　者：李擎擎 李君[1] 陈金星[1] LI Qing-qing;LI Jun;CHEN Jin-xing(Tianjin University, Tianjin 300350, China)

机构地区：[1]天津大学,天津300350

出　　处：《新能源进展》2017年第2期97-103,共7页Advances in New and Renewable Energy

基　　金：国家自然科学基金青年基金项目(51306129)

摘　　要：本文分别采用单温模型和双温模型,对氢气和空气预混气体在多孔介质微燃烧器中的燃烧特性进行了数值模拟。讨论了两种模型计算结果的差异,并重点研究了单温模型的适用条件。结果表明:与双温模型相比,单温模型计算的火焰温度偏低,火焰位置更靠近上游;在多孔介质导热系数较小或孔隙率较大时,单温模型和双温模型得到的火焰温度和火焰位置差异较小。A CFD study on fundamental flame characteristics of premixed hydrogen-air combustion in a planar porousmicro-combustor is carried out by using one-temperature model and two-temperature model.The differences of the resultsof two calculation models and the suitable conditions of one-temperature model are discussed.The numerical resultsindicate that the one-temperature model gives a lower flame temperature and a closer flame position to the upstream thanthe two-temperature counterpart.The differences of flame temperature and position between two models reduce with thedecrease of ks and the increase of?.

关 键 词：过滤燃烧 微燃烧器 数值模拟 单温模型 双温模型 

分 类 号：TK91[动力工程及工程热物理]