Investigation on extremal and critical characteristics of ignition time for H_2/O_2 combustion system and their applications

作     者：CHEN JianHua1,ZHANG HuiQiang2,LI ZhuoYi2 & ZHANG GuiTian1 1 School of Aerospace,North Western Polytechnical University,Xi’an 710072,China 2 Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China 

作者机构：School of Aerospace North Western Polytechnical University Xi’an 710072 China Department of Engineering Mechanics Tsinghua University Beijing 100084 China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2009年第52卷第5期

页      面：1161-1166页

核心收录：

学科分类：080702[工学-热能工程] 08[工学] 0807[工学-动力工程及工程热物理] 

主　　题：ignition time thermal explosion detailed reaction mechanism Semenov system supersonic combustion 

摘      要：The L,H and C curves in P-T phase are proposed to describe the minimal,maximal and critical char-acteristics of ignition time of H2/O2 combustion system,*** features of H2/O2(Air) com-bustion system,including explosion or not as well as the time delay to achieve its explosion status,can be well shown by explosion limits and these proposed *** curves can be described by 1.2k1=ks[Ms],(k11/k10+1)k1=ks[Ms],and 2k1=ks[Ms],respectively,which provide a physical explanation for these curves and give another way to establish *** on the contour of ignition time,the Z-type explosion limits can be explained by thermal explosion ***,the ignition distance of supersonic combustion is predicted according to the ignition time obtained in a Semenov system,which is very reasonable.