摘要
基于N-S方程建立了某型发动机喷管及其喷流流场的数值计算模型,利用辐射传输方程(RTE)积分法编制了红外辐射特征计算程序,得到了此喷管在非加力状态下工作时的红外辐射特征分布,同时利用模型试验测量得到该喷管的红外辐射特征分布。给出了在3.0～5.0μm光谱范围内的红外辐射特征数值模拟结果和试验测量结果,经比较表明:数值模拟结果和试验测量结果吻合良好。
The numerical models of an aeroengine exhaust nozzle and its jet flow field were built based on the Navier-Stokes equations. The infrared radiation characteristics of the exhaust nozzle at non-afterburning condition were obtained by infrared radiation characteristics calculation program compiled by the integrated method of the Radiation Transfer Equation （RTE）. The infrared radiation characteristics of the modeled exhaust nozzle were measured by the test. The results of numerical simulation and measurement for infrared radiation characteristics for the exhaust nozzle in the. spectrum range of 3.0-5.0 μm were given. The results show that the numerical simulation are in accord with the measurement.
出处
《航空发动机》
2010年第1期45-49,共5页
Aeroengine
关键词
喷管
喷流
红外辐射特征
航空发动机
数值模拟
试验
nozzle
jet
infrared radiation characteristics
aeroengine numerical simulation
experiment
