| Citation: | YANG Shiyu, LIN Yuanfang, XU Xianghua, et al. Simulation on steady-state characteristics of aero-engine fuel regulation device[J]. Journal of Aerospace Power, 2024, 39（10）：20220776 doi: 10.13224/j.cnki.jasp.20220776
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In order to study the steady-state operating characteristics of fuel regulation device and improve the flow control performance, a one-dimensional steady-state flow simulation program for aero-engine fuel system was developed based on Python language. By establishing a complete component library and efficient solution algorithm, the simulation of a fuel flow regulation system with pressure control components was realized. From the view of system, the working characteristics of the regulation device and the influence of parameters on the flow were analyzed. The results showed that under the working condition of the design point, the normal-working opening range of the metering valve was 0.3—0.85, and too large or too small opening was not conducive to the control of fuel flow. Only the preload can change the opening boundary of the metering valve. The influences of differential pressure valve parameters on the oil supply varied monotonically with the opening of the metering valve. Under the function of differential pressure valve, the oil supply to the combustor was less sensitive to the parameters of the system, and the change was less than 10%. It was found that internal leakage of the fuel pump served as an important factor affecting the fuel supply.
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