火箭推进2026，Vol.52Issue(3)：34-44,11.DOI:10.3969/j.issn.1672-9374.2026.03.004
高海况两相流下S弯进气道多目标优化设计
Multi-objective optimization design of an S-bend inlet under high-sea-state two-phase flow conditions
李鑫 1刘晶 2李洲 2邓诗雨 1向有志 1李永洲3
作者信息
- 1. 中国航发湖南动力机械研究所,湖南株洲 412002
- 2. 南昌航空大学航空宇航学院,江西南昌 330063
- 3. 南昌航空大学航空宇航学院,江西南昌 330063||中国科学院力学研究所,北京 100190
- 折叠
摘要
Abstract
To address the performance improvement requirements of inlet systems for sea-skimming aircraft under high-sea-state conditions,a multi-objective optimization study of an S-bend inlet in gas-liquid two-phase flow was conducted.Firstly,an S-bend inlet model incorporating seven key design variables was developed using a parametric method based on super-elliptic cross-sections.Subsequently,optimal Latin hypercube sampling combined with sensitivity analysis was utilized to systematically reveal pronounced nonlinear and interaction effects among the design parameters,with the second-order effect of the cross-section super-elliptic exponent being particularly prominent.On this basis,a high-efficiency multi-objective optimization framework was established by coupling a Kriging surrogate model with the NSGA-Ⅱ algorithm to achieve a balance between maximizing the total pressure recovery coefficient and minimizing the distortion index.The results show that,compared with the reference inlet,the optimized inlet achieves a total-pressure recovery coefficient of 0.994(a relative increase of 0.71％)and a distortion index reduction of 24.6％,while maintaining robust performance within the water-ingestion ratio range of 5％-20％.关键词
S弯进气道/两相流动/优化设计/总压恢复/总压畸变Key words
S-bend inlet/two-phase flow/optimization design/total-pressure recovery/total-pressure distortion分类
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李鑫,刘晶,李洲,邓诗雨,向有志,李永洲..高海况两相流下S弯进气道多目标优化设计[J].火箭推进,2026,52(3):34-44,11.
