Intelligent variable strut for combustion performance optimization of a wide-range scramjet engine

被引:5
作者
Li, Linying [1 ]
Rong, Chengjin [1 ]
Hu, Suyu [2 ]
Zhang, Bin [1 ,3 ]
Liu, Hong [1 ]
机构
[1] Shanghai Jiao Tong Univ, Sch Aeronaut & Astr, 800 Dong Chuan Rd, Shanghai 200240, Peoples R China
[2] Harbin Engn Univ, Coll Aerosp & Civil Engn, 145 Nantong St, Harbin 150001, Peoples R China
[3] Shanghai Jiao Tong Univ, Sichuan Res Inst, Sichuan 100190, Peoples R China
基金
中国国家自然科学基金;
关键词
Combustion; Scramjet engine; Wide-range of flow condition; Intelligent strut; Hydrogen; Optimization; SUPERSONIC COMBUSTION; MODE TRANSITION; MECHANISM;
D O I
10.1016/j.ijhydene.2023.05.158
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
This paper investigates an intelligent strut design scheme for achieving high-performance combustion of a combustion chamber under wide-ranging flow conditions. The design process involves optimizing the base strut configuration for the design point and obtaining the Pareto front. The subsequent selection of the optimal configuration is followed by analyzing and interpreting the optimization results using single-factor analysis rules. The findings reveal that the selected optimal configuration enhances the combustion efficiency by 8.22% and reduces the force by 66.12% compared to the traditional DLR combustion chamber. Additionally, a surrogate model is constructed to investigate the influence of the rotation angle of the intelligent strut's rotating blades on the combustion efficiency and force at a Mach number range of 2-3.5. Results indicate that the intelligent strut is capable of improving combustion efficiency via regulation, and the efficiency can quickly reach a desirable level. These findings suggest that the proposed design scheme has potential applications in achieving high-performance combustion in combustion chambers exposed to wide-ranging flow conditions.(c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:1 / 13
页数:13
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