摘要
为分析进气畸变对发动机稳定性和性能影响,基于带源项的2维非定常欧拉方程发展了1种数值计算方法。利用所建立的模型针对某型发动机分析了总压畸变对整机稳定性和性能参数的影响,以及典型影响因素对临界总压畸变指数的影响。计算结果表明:该模型预测较准确,预测结果具有工程应用价值。
In order to analyze the effect of inlet distortion on the aeroengine stability and performance, a numerical calculation method was developed by the two-dimensional unsteady Euler equation with source item. The effect of total pressure distortion on an aeroengine stability and performance parameters was analyzed by the model. The effect of typical influence factor on the critical total pressure exponent was studied. The results show that the accuracy of the model is well and value of engineering application.
出处
《航空发动机》
2012年第4期34-37,46,共5页
Aeroengine
关键词
航空发动机
整机稳定性
总压畸变
数值模拟
aeroengine
aeroengine stability
total pressure distortion
numerical simulation
