Numerical Simulation of Heat Flow Field on the Outer Surface of the Airframe

Abstract

AbstractAdvances in reusable and hypersonic technology have accelerated the historic integration of transatmospheric ve-hicles, blurring the line between spacecraft and aeronautical vehicles. At the same time, MEA/AEA concept is widely used in the design of advanced aircraft developing towards electrification and intelligence, causing a lot of heat generated by Airborne electronic equipment, of which the cooling demand increases with the replacement of electronic equipment which causes the on-board electronic equipment will generate a lot of heat, and its complexity and energy requirements will increase with the replacement of electronic equipment. Therefore, the heat dissipation of the aircraft is not optimistic. As a power energy source, fuel stored in the fuel tanks around the fuselage and wings is also one of the important heat sinks of the aircraft. The heat transfer analysis of the fuel tanks is particularly necessary for the integrated thermal management of the aircraft. By computational fluid dynamics and numerical heat transfer method, the simulation calculation and analysis of external flow field and aerodynamic heating of different task profile provide the detailed outer boundary conditions for the next long endurance fuel temperature simulation and lays a foundation for the analysis and calculation of integrated fuel thermal management.KeywordsAircraftAerodynamic heatExternal heat flow fieldHeat of fuel tank