摘要
在一台内径61 mm、长度1140 mm的气动阀式脉冲爆震发动机(PDE)上,进行了爆震管热负荷的测量计算,主要采用了两种换热模型:一是自然对流和热辐射模型;二是强迫对流模型.在两种方式下,爆震管的热负荷随频率的变化关系基本相同,即随频率升高而热负荷增大,但频率增加两倍热负荷增加却不止两倍.此外,在方式二的情况下,还得到煤油蒸发率随频率的变化关系,为PDE蒸发器设计提供参考.
A pulse detonation engine(PDE) with diameter and length of 61mm and 1140mm respectively,was used to get the heat loads of detonation tubes which were designed into two types.The first one is that its heat transfer was controlled by natural convection and thermal radiation,and the other one was mainly influenced by forced convection.The same relations between heat load and working frequency were acquired in two conditions,namely,the heat load increased along with the increase of working frequency.However,wit...
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2009年第9期1952-1958,共7页
Journal of Aerospace Power
基金
国家自然科学基金(50876041)
