火箭推进2018，Vol.44Issue(1)：53-58,86,7.
基于详细反应机理的直管中正庚烷燃烧特性研究
Study based on detailed reaction mechanism for n-Heptane′s combustion characteristics inside straight tube
摘要
Abstract
The 1-D flame structure near n-Heptane flame was calculated according to the detailed chemical reaction mechanism and then it was obtained. The temperature distribution,flame structure and the main products distribution under various heat emission conditions were got by changing the convective heat transfer coefficient between straight tube surface and air. The calculating result shows that the n-hep-tane is almost completely consumed before it goes into the preheat zone;during the reaction process,the flame temperature in the straight tube remains unchanged when the equivalence ratio is stable;there was a linear relationship between the flame location and the fuel's mass flow rate (mf),and also between the temperature slope in the downstream of flame and mf;the increase of convective heat transfer coefficient on the outside surface of the straight tube makes the gas temperature in the tube gradually decreased and finally extinguished.关键词
正庚烷/详细反应机理/火焰结构/入口参数/对流换热系数Key words
n-Heptane/detailed reaction mechanism/flame structure/inlet parameter/convective heat transfer coefficient分类
航空航天引用本文复制引用
黄景怀,王威..基于详细反应机理的直管中正庚烷燃烧特性研究[J].火箭推进,2018,44(1):53-58,86,7.
