| Citation: | WANG Xiaohui, ZHANG Kai, MIAO Senchun, et al. Optimization of aviation fuel pump cavitation performance based on surrogate model[J]. Journal of Aerospace Power, 2025, 40（8）：20230406 doi: 10.13224/j.cnki.jasp.20230406
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In order to improve the cavitation performance of aviation fuel pump, a centrifugal aviation fuel pump was used as an example to optimize the impeller runner geometry parameters with full parameters, and generate a response sample space with design parameters as inputs and boost pressure value and cavitation volume as outputs. Based on the meta-model of optimal prognosis, the optimal surrogate model was fitted and the global sensitivity analysis was performed. It was found that the impeller inlet edge parameters and the middle profile parameters had a significant influence on the boost pressure value and cavitation volume of the fuel pump. The optimal design parameters were obtained by the genetic algorithm, and the numerical simulation method was used to verify the obtained optimal parameters. The results showed that the pressure coefficient of the optimized fuel pump was improved by 0.035 and the cavitation performance was improved by 22.28%. The impeller cavitation area and cavitation volume decreased significantly, the pressure load distribution between different vanes was improved, and the amplitude of pressure pulsation inside the impeller was reduced.
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