基于FDS的风扇舱双油池火温度变化特征

doi:10.16265/j.cnki.issn1003-3033.2024.01.1803

中国安全科学学报 ›› 2024, Vol. 34 ›› Issue (1): 133-139.doi: 10.16265/j.cnki.issn1003-3033.2024.01.1803

基于FDS的风扇舱双油池火温度变化特征

程关兵¹^,²(), 叶豪辉¹

¹ 中国民航大学航空工程学院,天津 300300
² 中国民航大学民航热灾害防控与应急重点实验室,天津 300300

收稿日期:2023-08-17 修回日期:2023-11-19 出版日期:2024-01-28
作者简介:
程关兵 (1977—),男,湖北麻城人,博士,副教授,主要从事动力装置中的燃烧机制方面的研究。E-mail: gbcheng@cauc.edu.cn。
基金资助:
民航热灾害防控与应急重点实验室开放基金资助(RZH2020-KF-06)

Temperature variation characteristics of double fuel-pool fire in fan cavity based on software FDS

CHENG Guanbing¹^,²(), YE Haohui¹

¹ College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China
² Key Laboratory of Civil Aviation Thermal Hazards Prevention and Emergency Response, Civil Aviation University of China, Tianjin 300300, China

Received:2023-08-17 Revised:2023-11-19 Published:2024-01-28

摘要/Abstract

摘要：

航空发动机燃油泄漏形成的油池火威胁发动机运行和飞机安全,为描述风扇舱内油池火复杂的物理传播过程,开展双油池火温度变化特征的研究。首先,基于火灾动力学模拟软件(FDS)建立CFM56-7B发动机风扇舱物理计算模型;然后,比较Trent 800发动机风扇舱单油池火温度计算值与试验值,验证网格独立性;最后,借助探测器和切片分析舱内双油池火的发展过程和温度变化特征。结果表明:双油池火温度在舱内环向上经历增加和振荡准稳态2个变化阶段,其变化幅度与探测器和油池的间距相关;油池火向左偏斜现象导致左半边温度较高;火焰在轴向上经历火羽流上浮、火焰开始融合、融合扩大和完全融合等阶段。

关键词: 火灾动力学模拟(FDS), 风扇舱, 双油池火, 温度变化特征, 发动机

Abstract:

Pool fire caused by fuel leakage seriously threatens engine operation and aircraft safety. To deeply understand the complicated physical mechanisms of pool fire in engine fan cavities, temperature variation characteristics of double fuel pool fire were investigated. Firstly, the physical and numerical models of the CFM56-7B engine fan cavity were established based on the software FDS. Secondly, simulated temperature variations of single fuel pool fire were validated against measurements of the Trent 800 engine fan cavity, and then grid independence was analyzed. Finally, the fire development process and temperature variation characteristics of double fuel pools were analyzed within the fan cavity using several detectors and slices. The results indicated two phases for temperature variation of the double fuel-pool fire in the engine cavity, including an increment state and a quasi-steady state. Moreover, temperature variation magnitude was affected by distances between the detectors and the fuel pools. Fuel-pool fire flame propagation inclined to the left side of the fan cavity, causing an increment of fire temperature on the left side. Plume floating, flame fusion, fusion expansion, and full flame coalescences were observed in the axial direction of the cavity.

Key words: fire dynamic simulator(FDS), fan cavity, double fuel pool fire, temperature variation characteristics, engine

中图分类号:

X949

程关兵, 叶豪辉. 基于FDS的风扇舱双油池火温度变化特征[J]. 中国安全科学学报, 2024, 34(1): 133-139.

CHENG Guanbing, YE Haohui. Temperature variation characteristics of double fuel-pool fire in fan cavity based on software FDS[J]. China Safety Science Journal, 2024, 34(1): 133-139.

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参考文献 21

[1]	李琼, 张华. 航空发动机燃油系统及其附件爆炸大气试验技术研究[J]. 航空发动机, 2017, 43(3):74-77.
	LI Qiong, ZHANG Hua. Research on the explosive atmosphere testing technology of the fuel system and its accessories[J]. Aeroengine, 2017, 43(3):74-77.
[2]	AIRBUS. Statistical analysis of commercial aviation accidents 1958-2021[R], 2022.
[3]	KOTLIAR I. Hypoxic aircraft fire prevention and suppression system with automatic emergency oxygen delivery system:United States, US20080168798A1[P].2008-07-17.
[4]	KIM J, BAEK B, LEE J. Numerical analysis of flow characteristics of fire extinguishing agents in aircraft fire extinguishing systems[J]. Journal of Mechanical Science & Technology, 2009, 23(7):1877-1884.
[5]	杨燕, 寇延清, 杨成茂. 飞机发动机短舱结构防火设计与试验验证[J]. 航空科学技术, 2014, 25(6):58-61.
	YANG Yan, KOU Yanqing, YANG Chengmao. Fire protection design and test verification of aircraft engine nacelle structure[J]. Aeronautical Science and Technology, 2014, 25(6):58-61.
[6]	梁智超, 王井科, 雷友锋. 航空发动机防火安全性设计与验证分析[J]. 航空发动机, 2018, 44(2):92-97.
	LIANG Zhichao, WANG Jingke, LEI Youfeng. Fire safety design and verification analysis of aeroengine[J]. Aeroengine, 2018, 44(2):92-97.
[7]	李仁鹏. 复合材料结构飞机发动机短舱防火设计与试验验证[J]. 广东科技, 2016, 25(2):39-40.
	LI Renpeng. Fire protection design and test verification of composite structure aircraft engine nacelle[J]. Guangdong Science and Technology, 2016, 25(2):39-40.
[8]	崔建军, 任志强, 张宗林. 军用航空发动机防火和耐火试验研究[J]. 航空标准化与质量, 2015(5):36-39.
	CUI Jianjun, REN Zhiqiang, ZHANG Zonglin. Experimental study on fire and fire resistance of military aero engine[J]. Aviation and Quality Standardization, 2015(5):36-39.
[9]	MULLENDER A, HORROCKS D, BINKS D. The numerical simulation and experimental validation of ventilation flow and fire events in a Trent nacelle fire zone[C]. 22^nd International Congress of Aeronautical Sciences, 2000:100-110.
[10]	MOSS J, RUBINI P, SANDERSON V, et al. The simulation of engine casing fires: computational modelling and experiment[C]. NATO RTO Fire and Survivability Specialists Meeting, 2002: 23-26.
[11]	ZADEH S E, BEJI T, MERCI B. Assessement of FDS 6 simulation results for a large scale ethanol pool fire[J]. Combustion Science and Technology, 2016, 188(4):571-580. doi: 10.1080/00102202.2016.1139367
[12]	KEYSER D R, HEWSON J C. Assessment of fire-suppression simulations using full-scale engine nacelle tests[R]. National Institute of Standards and Technology, 2005.
[13]	WANG Zhaozhi, JIA Fuchen, GALEA E, et al. Computational fluid dynamics simulation of a post-crash aircraft fire test[J]. Journal of Aircraft[J], 2013, 50(1):164-175. doi: 10.2514/1.C031845
[14]	李博. 侧向风作用下的双火源相互作用燃烧特性研究[D]. 合肥: 中国科学技术大学, 2021.
	LI Bo. Interaction behaviors of two fire sources burning under cross wind[D]. Hefei: University of Science and Technology of China, 2021.
[15]	徐浩祯, 赵威风, 吕思嘉. 隧道双火源火灾燃烧特性的实验研究[J]. 工程热物理学报, 2020, 41(5):1254-1260.
	XU Haozhen, ZHAO Weifeng, LYU Sijia. Experimental study on combustion characteristics of two fire sources in a tunnel[J]. Journal of Engineering Thermophysics, 2020, 41(5):1254-1260.
[16]	刘松涛, 赵金龙, 卫文彬, 等. 隧道内不同间距双火源火灾实验及模拟研究[J]. 中国公路学报, 2022, 35(7):193-202. doi: 10.19721/j.cnki.1001-7372.2022.07.016
	LIU Songtao, ZHAO Jinlong, WEI Wenbin, et al. Experimental and simulation study on double fire source tunnels with different spacing[J]. China Journal of Highway and Transportation, 2022, 35(7):193-202.
[17]	万华仙. 不同受限条件下双方形对称火源相互作用燃烧行为研究[D]. 合肥: 中国科学技术大学, 2018.
	WAN Huaxian. Interaction of behaviors of two symmetrical square fires under different confined conditions[D]. Hefei: University of Science and Technology of China, 2018.
[18]	邢朝亮, 黄咸家, 何乐, 等. 火焰撞击障碍物形成的溢流火焰融合行为研究[J]. 中国安全科学学报, 2021, 31(4):171-176. doi: 10.16265/j.cnki.issn1003-3033.2021.04.023
	XING Chaoliang, HUANG Xianjia, HE Le, et al. Experimental study on flame merging behavior of spilled flame generated by flame impinging on obstruction[J]. China Safety Science Journal, 2021, 31(4):171-176. doi: 10.16265/j.cnki.issn1003-3033.2021.04.023
[19]	孙玉佳. 基于大涡模拟的油池火焰瞬态辐射传热研究[J]. 中国安全科学学报, 2022, 32(4):65-71. doi: 10.16265/j.cnki.issn1003-3033.2022.04.010
	SUN Yujia. Transient radiative heat transfer of pool fires based on large eddy simulation[J]. China Safety Science Journal, 2022, 32(4):65-71. doi: 10.16265/j.cnki.issn1003-3033.2022.04.010
[20]	詹姆士 G 昆棣瑞. 火灾学基础[M]. 杜建科, 王平, 高亚萍,译. 北京: 化学工业出版社, 2010:323.
	JAMES G Q. Fundamentals of fire phenomena[M]. DU Jianke, WANG Ping, GAO Yaping,Translated. Beijing: Chemical Industry Press, 2010:323.
[21]	MCGRATTAN K, MCDERMOTT R, WEINSCHENK C, et al. Fire dynamics simulator users guide[R]. National Institute of Standards and Technology, 2013.

基于FDS的风扇舱双油池火温度变化特征

Temperature variation characteristics of double fuel-pool fire in fan cavity based on software FDS

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