流固网络一体化模拟方法探索及应用

推导了一种新的流体网络与固体网络一体化模拟方法编成程序应用到航空发动机空气系统及沿程固体域的温度、压力、流量预测中.该方法将模拟系统简化为节点和元件组成的网络,节点和元件处建立守恒方程,应用新的方法将流体和固体网络统一求解.程序应用到有参考结果的算例中得到验证,验证后的程序被应用到某预研航空发动机涡轮盘的流场和温度场预测中,为工程设计提供了有用的参考.

Simulation approach to the fluid-thermal network and the application

A new approach combining fluid network and thermal network was developed to predict the characteristic of pressure,temperature and mass flow rate of engine.The simulated system was simplified into nodes and branches.Conservation equations were solved by a newly introduced fluid-thermal method.The program was validated by applying to the benchmark,and then the program was applied to predict the flow and heat transfer characteristics of turbine disk in engine,providing useful reference for design.