摘要
结合Flowmaster软件平台建立回热器供/回气管路系统的流动传热性能仿真网络,利用Isight软件中近似模型方法建立回热器性能与供气管、主管及回流管径之间的响应函数关系。以各回热器模块的冷气流量等性能参数为目标,采用多种遗传优化算法对回热器管路系统尺寸进行优化。结果表明,当供气管径为165 mm、主管管径为70 mm、回流管管径为162 mm时回热器换热量最大,此时管路系统质量为335.04 kg。考虑到在喷管内安装后各回热器模块燃气侧流量分配不均匀性的影响,总换热量及换热效率略有变化。
A thermal fluid simulation network was built up for the recuperator pipe system based on theFlowmaster software package. The response functions between the performance of recuperator and the diam-eters of the supply, backflow and mainstream pipes were achieved according to the Approximation Modelsinside Isight software. Then several genetic algorithms were applied to achieve the coolant flow rate targetfor each recuperator matrix. Optimization results showed that maximum heat flux was obtained whenDSupply=165 mm, DMain=70 mm, DBackflow=162 mm. And the weight of pipe system was 335.04 kg. Finally,the non-uniformity of gas side flow rate for each recuperator matrix was also considered. Results show it hassmall effects on the recuperator total heat flux and heat transfer rate.
出处
《燃气涡轮试验与研究》
北大核心
2016年第1期47-52,40,共7页
Gas Turbine Experiment and Research
关键词
航空发动机
间冷回热循环
回热器模块
供/回气管路系统
流动传热网络
多目标优化
aero-engine
intercooled recuperated cycle
recuperator matrix
air supply/backflow pipe system
thermal fluid network
multi-object optimization
