涡轮基组合循环发动机燃油系统流动传热耦合仿真软件开发

为避免燃油系统温度压力过高造成燃油系统故障,针对涡轮基组合循环发动机燃油系统流动传热特性进行了联合仿真软件开发研究.根据燃油系统的工作原理、流动传热机理,建立了燃油系统各个元组件的Flowmaster数学模型,采用Visual Basic(VB)语言基于Microsoft Visual Studio(VS)软件平台二次...

Development of Flow and Heat Transfer Coupling Simulation Software for Fuel System of Turbine Based Combined Cycle Engine

To avoid the fuel system failure caused by the high temperature and pressure of the fuel system, a joint simulation software was developed for the flow and heat transfer characteristics of turbine based combined cycle engine fuel system..According to the mechanics of the fuel system, the principle of fluid mechanics and heat transfer, the Flowmaster mathematical model of each component of the fuel system was established as the first stage. Then, the Visual Basic (VB) language, based on the Microsoft Visual Studio (VS) software platform, was applied to reengineer the joint simulation software, including Flowmaster and Excel. The Excel data table was used as the database to contain the input of the joint simulation parameters and the output of the calculation results. This article also test and verified the typical flight conditions with the preliminary joint simulation. The results prove that the joint simulation software developed in this paper is capable to cooperate the working condition parameters and calculation results, and meanwhile generate simulation automatically. This technology will simplify the simulation steps and improve the work efficiency of the software. Under typical operating conditions, the fuel flow of the main combustion chamber is in the range of m0-3.5m0, the relative error of the temperature simulation value and the test value does not exceed 4.0%, and the relative error of the pressure simulation value and the test value does not exceed 3.6%; the fuel flow of the afterburner Within the range of 1.39m0-9.72m0, the relative error of the temperature simulation value and the test value does not exceed 3.4%, and the relative error of the pressure simulation value and the test value does not exceed 3.6%; the fuel flow of the stamping combustion chamber is in the range of 2.25m0-14.60 m0, the temperature The relative error between the simulation value and the test value does not exceed 3.8%, and the relative error between the pressure simulation value and the test value does not exceed 4.0%. The results of the joint simulation are correct and reliable.