Studying three schemes for wing fuel tanks in UAV fuel system

Sections 1, 2 and 3 of the full paper explain the results of our research, which take into consideration of what is known about the U. S. Global Hawk UAV. Section 1 is entitled establishment of the model of the fuel system; its core is Fig. 1, which shows the positioning of wing fuel tanks. Section 2 is entitled the steady-state simulation and the analysis of simulation results; its core is Fig. 6, which shows the node pressure curve. Section 3 is entitled transient-state simulation and the analysis of simulation results; its core consists of: (1) we propose three schemes; (2) we present the simulation results of the 1st scheme in Figs. 7 and 10; (3) we present the simulation results of the 2nd scheme in Figs. 8 and 11; (4) we present the simulation results of the 3rd scheme in Figs. 9 and 12; (5) Fig. 13 compares the simulation results of the three schemes; (6) we analyze the merits and demerits of the three schemes.