Simulation of Aircraft Fuel Thermal Management System Based on Simulink

Aiming at the aircraft fuel system which adopts the technology of vapor cycle cooling system, and uses the fuel as a kind of effective cold source of condensers and other heat exchangers, this paper established the mathematical models of the fuel system and major components. On the basis of Simulink software platform, the simulation module of fuel system was established by developing the S-functions of the major components and the user-defined module library. According to the simulation module, the flow, temperature, pressure, and the import and export parameters of all the major components could be obtained in different given flight situations. The simulation module could also be used in making prediction and supervision of the thermal management and the parameters of each node of the aircraft fuel system, offering some reference for aircraft fuel system design which adopts the technology of vapor cycle cooling.