| Citation: | DING Fang, LI Songyang, CONG Beihua. Numerical simulation on fire and spread characteristics of oil spray in engine compartment[J]. Journal of Aerospace Power, 2023, 38（2）：279-287 doi: 10.13224/j.cnki.jasp.20210196
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In order to study the typical fire in the engine compartment, the large eddy simulation technology was used to establish a spray fire model of engine core compartment. The fire and fire propagation process in cabin was studied, and the effects of different leak positions and spray orientations on flame propagation, temperature and heat flux distribution were analyzed. The result showed that the spray leakage led to ignition and stable burning in the ventilated heat environment of cabin. There was a certain incubation period during ignition, after getting a high intensive and serious destructive fire. Spray fire indicated a typical incomplete combustion process controlled by ventilation, presenting a certain law of propagation; the center of the flame was located in the high-speed recirculation zone, and it spread rapidly to the air intake and tail exhaust. Different leak positions and spray orientations had a certain impact on fire propagation, temperature distribution and heat flux. The location of the leak had greater influence on the peak temperature and heat flux, and the spray orientation had greater influence on temperature and heat flux distribution.
| [1] |
MULLENDER A J, HORROCKS D M, BINKS D. The numerical simulation and experimental validation of ventilation flow and fire events in a trent nacelle fire zone [C]//ICAS Congress, International Council of the Aeronautical Sciences. Harrogate York, UK: 22nd international congress of aeronautical sciences, 2000: 681.1-681.10
|
| [2] |
MOSS J B, RUBINI P A, SANDERSON V, et al. The simulation of engine casing fires: computational modelling and experiment[C]// NATO RTO Fire and Survivability, Specialists Meeting. Aalborg, Denmark: Applied Vehicle Technology Panel, 2002: 23-26.
|
| [3] |
FASQUELLE A, RUBINI P A. Experiments and transient numerical simulations of fire events in a gas turbine engine nacelle[C]//2nd Fire Bridge Conference. Belfast, UK: Sandia National Laboratories, 2005: 9-11.
|
| [4] |
HEWSON J C, TIESZEN S R, SUNDBERG W D, et al. CFD modeling of fire suppression and its role in optimizing suppressant distribution[C]// Proceedings of the Halon Options Technical Conference. New York: Department of Mechanical and Aerospace Engineering, 2003: 1-15.
|
| [5] |
FUMIAKI T,SCHMOLL W. J, EDWARD A, et al. Suppression behavior of obstruction-stabilized pool flames[J]. Combustion Science and Technology,2001,163(1): 107-130. doi: 10.1080/00102200108952153
|
| [6] |
BLACK A R, SUO A J M, DISMILE P J, et al. Numerical predictions and experimental results of air flow in a smooth quarter-scale nacelle[R]. AIAA 2002-0856, 2002.
|
| [7] |
NICOLETTE V F, TIESZEN S R, GRITZO L A, et al. Numerical simulation of fire in an aircraft engine nacelle[M]. Gaith-ersburg, USA: National Institute of Standards and Technology, 1996: 143-144.
|
| [8] |
LI S Y, ACHAYRA R, COLKET M, et al. Modeling water-mist based suppression of 34 GJ car-deck fires using FDS[C]//Suppression, Detection and Signaling Research and Applications Symposium. Orlando, US: United Technologies Research Center, 2013: 43-45.
|
| [9] |
CAO C, CORN M, SANKARAN V, et al. Smoke transport modeling in cargo bays parametric study[C]//FAA Systems Working Group Meeting. Atlantic, US: FAA Technical Center-Fire Safety Branch, 2018: 8-10.
|
| [10] |
CAO C, CORN M, SANKARAN V. Large-scale diesel pool fire modeling[C]//10th US National Combustion Meeting. College Park, Maryland, US: University of Maryland, 2017: 167-172.
|
| [11] |
牛雪民,谢永奇,余建祖. 无通风直升机动力舱火灾温度场数值模拟[J]. 航空动力学报,2011,26(8): 1761-1767.
NIU Xuemin,XIE Yongqi,YU Jianzu. Numerical simulation study on temperature field of helicopter nacelle fire under non-ventilation condition[J]. Journal of Aerospace Power,2011,26(8): 1761-1767. (in Chinese)
|
| [12] |
王伟,杨毅成,尹莉萍,等. 当量比对航空发动机防火试验温度场的数值分析[J]. 科学技术与工程,2017,17(19): 301-307. doi: 10.3969/j.issn.1671-1815.2017.19.055
WANG Wei,YANG Yicheng,YIN Liping,et al. Analysis of equivalence ratio effect on flame temperature of NexGen burner[J]. Science Technology and Engineering,2017,17(19): 301-307. (in Chinese) doi: 10.3969/j.issn.1671-1815.2017.19.055
|
| [13] |
王伟,刘帅,白杰. 飞机防火试验中的燃烧反应动力学模型研究[J]. 火灾科学,2016,25(4): 179-182. doi: 10.3969/j.issn.1004-5309.2016.04.01
WANG Wei,LIU Shuai,BAI Jie. Research on kinetic model of combustion reaction in airplane fire test[J]. Fire Safety Science,2016,25(4): 179-182. (in Chinese) doi: 10.3969/j.issn.1004-5309.2016.04.01
|
| [14] |
王伟,吕凯. 航空发动机部件防火试验热流计影响因素的数值分析[J]. 科学技术与工程,2015,15(31): 163-167,178. doi: 10.3969/j.issn.1671-1815.2015.31.030
WANG Wei,LÜ Kai. Numerical analysis of influencing factors of heat flow meter in fire test of aero-engine[J]. Science Technology and Engineering,2015,15(31): 163-167,178. (in Chinese) doi: 10.3969/j.issn.1671-1815.2015.31.030
|
| [15] |
曹彬,张礼敬,张村峰,等. 比较FDS和FLUENT在池火灾模拟中的应用[J]. 中国安全生产科学技术,2011,7(9): 45-49. doi: 10.3969/j.issn.1673-193X.2011.09.008
CAO Bin,ZHANG Lijing,ZHANG Cunfeng,et al. Compare the application of FDS and FLUENT in pool fire simulation[J]. Journal of Safetyscience and Technology,2011,7(9): 45-49. (in Chinese) doi: 10.3969/j.issn.1673-193X.2011.09.008
|
| [16] |
李松阳,邵兴晨. 浮力修正湍流模型在发动机火灾模拟中的应用[J]. 航空发动机,2016,42(6): 58-65.
LI Songyang,SHAO Xingchen. Application on buoyancy corrected turbulent model in nacelle fire modeling[J]. Aeroengine,2016,42(6): 58-65. (in Chinese)
|
| [17] |
KEVIN M G, SIMO H, RANDALL M D. Fire dynamics simulator (version 6), user’s guide[M]. Gaithersburg, Maryland: National Institute of Standards and Technology, 2015.
|
| [18] |
KEVIN M G, SIMO H, RANDALL M D. Fire dynamics simulator (version 6), technical reference guide, volume 1: mathematical model[M]. Gaithersburg, US: National Institute of Standards and Technology, 2015.
|
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