改善涡扇发动机多任务适应性的途径探讨

基于改善涡扇发动机多任务适应性的目的,提出了两种解决方案。利用加力燃油的热容,改善涡扇发动机的性能。在预冷换热效果能实现设定数值的假设前提下,计算了预冷换热对发动机性能的影响,对两种途径的可行性进行了分析。结果证明所提出的两种途径对于涡扇发动机的性能和多任务适应性有很大改善。

Investigation of Methods Improving Turbofan Engine Multi-Mission Adaptability

To improve the multi-mission adaptability of the reheat turbofan engine,two methods were brought forward. Performance of turbofan engines can be improve by taking advantage of the heat sink capability of reheat fuel.Effect on engine performance of precooling was calculated to analyze the feasibility of the two methods on the assumption that the precooling effectiveness can achieve the anticipated value.The results validate the feasibility of the two methods.They are also very useful in improving the performance of the turbofan engine.