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在单涡燃烧室研究的基础上,对双涡燃烧室进行出口温度分布试验研究,得到了影响出口温度分布系数(OTDF)的因素如下:①随着主流马赫数的增加,出口温度分布系数减小;②主流温度对出口温度分布影响较大,出口温度分布系数随主流温度的增加而减小;③随着余气系数的增大,出口温度分布系数都有先增大后趋于平缓或减小的过程;④不同的凹腔结构对出口温度分布系数的影响很大,综合各个试验件结果,深宽比为0.8,后体进气方式为开槽进气的双1试验件的出口温度分布系数最小.
Based on the study of single-vortex combustor, the outlet temperature distribution of the double-vortex combustor was studied and the factors influencing the outlet temperature distribution coefficient (OTDF) were obtained as follows: (1) With the increase of main Mach number, the outlet temperature distribution coefficient The temperature distribution coefficient of the outlet decreases with the increase of the mainstream temperature; (3) With the increase of the residual gas coefficient, the outlet temperature distribution coefficient first increases and then tends to be gentle or Reduce the process; ④ different cavity structure of the outlet temperature distribution coefficient is very large, the results of each test piece, the aspect ratio of 0.8, the rear inlet approach is slotted inlet double test piece exports The temperature distribution coefficient is the smallest.