Effects of stagnation temperature on hysteresis in flame stabilization in a hydrogen-fueled strut-stabilized supersonic combustor

被引：1
作者：
Pinto, Rocky Simon [1 ]
Renganathan, T. Sree [2 ]
Ansari, S. M. D. Hamid [3 ]
Muruganandam, T. M. [4 ]
机构：
[1] Indian Inst Technol Madras, Natl Ctr Combust Res & Dev NCCRD, Chennai, India
[2] Indian Inst Technol Madras, NCCRD, Chennai, India
[3] Indian Inst Technol Madras, NCCRD, Chennai, India
[4] Indian Inst Technol Madras, Dept Aerosp Engn, NCCRD, Chennai, India
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2023年 / 48卷 / 84期
关键词：
Hysteresis; Supersonic combustion; Scramjet; Strut; Flame stabilization; Hydrogen; DUAL-MODE SCRAMJET; LASER-INDUCED PLASMA; NUMERICAL-SIMULATION; FLOW-FIELD; CAVITY; PERFORMANCE; INJECTION; IGNITION; TRANSITION; MECHANISM;
D O I：
10.1016/j.ijhydene.2023.05.096
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：
The effects of stagnation temperature on hysteresis in flame stabilization in a hydrogenfueled strut-stabilized supersonic combustor are experimentally studied. The equivalence ratio (ER) is changed for the given stagnation conditions. For an average T0 of 1360 K, the three different combustion modes observed are divergent flame (CM1), strut stabilized flame (CM2), and fuel jet stabilized flame (CM3). Hysteresis is observed between CM1 and CM2 for lower ERs. For higher ERs, hysteresis is observed between CM2 and CM3. For an average T0 below 1300 K, CM1 alone is observed for all ERs. Hence, no hysteresis is observed. For T0 = 1400 K, at lower ERs, CM2 is observed for a short time. As the ER increases, CM3 is observed. It is observed that the time of the flame in the divergent section decreases with increasing T0. Hence, the variation in stagnation temperature significantly affects the hysteresis in flame stabilization modes.(c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：32982 / 32994
页数：13
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