Research on Jet Performance of a Hot Jet Igniter

Journal of Propulsion Technology ›› 2016, Vol. 37 ›› Issue (7): 1303-1311.

• Combustion , Heat and Mass Transfer • Previous Articles Next Articles

Research on Jet Performance of a Hot Jet Igniter

College of Energy and Power Engineering，Nanjing University of Aeronautics and Astronautics，Nanjing 210016，China,College of Energy and Power Engineering，Nanjing University of Aeronautics and Astronautics，Nanjing 210016，China and College of Energy and Power Engineering，Nanjing University of Aeronautics and Astronautics，Nanjing 210016，China

Published:2021-08-15

内燃波转子热射流点火装置射流特性研究

巩二磊,李建中,韩启祥

南京航空航天大学能源与动力学院，江苏南京 210016,南京航空航天大学能源与动力学院，江苏南京 210016,南京航空航天大学能源与动力学院，江苏南京 210016

作者简介:巩二磊，男，博士生，研究领域为非定常燃烧技术以及内燃波转子关键技术。
基金资助:
国家自然科学基金(51476077)；江苏省研究生培养创新工程(KYLX-0299)。

Abstract

Abstract: For better application of the hot jet igniter to wave rotor combustor，a numerical study on hot jet performance is conducted according to a specially designed hot jet igniter. The effects of mass flow rate and nozzle structure on the hot jet characteristics are studied respectively. The results indicate that the jet core length increases with the increase of inlet mass flow rate. However，decreasing the nozzle outlet area would not increase the jet core length，for example，jet core length decreases sharply when inlet mass flow rate is 1.23g/s on the condition that nozzle diameter is less than 7mm. Besides the decrease of nozzle outlet area leads to the increase of jet momentum substantially. Jet energy in the core region presents linear distribution while the momentum shows quadratic distribution with respect to mass flow rate in the same characteristic section.

Key words: Wave rotor combustor；Ignition；Hot jet ignition；Jet core；Jet performance

摘要： 为了将热射流点火更好地应用于内燃波转子，采用数值模拟的方法，针对所设计的热射流点火装置进行射流特性研究，分别研究了流量变化与喷管结构对热射流特性的影响。研究结果表明随着进口流量的增加，射流核心长度增加，而喷管出口面积减小并不能增加射流核心长度，如在进口流量为1.23g/s时，喷管直径小于7mm后射流核心长度急剧下降，但是喷管出口面积减小大幅度增加了射流动量。在相同位置特征截面上，核心区射流能量随质量变化呈线性分布，动量呈二次分布。

关键词: 内燃波转子；点火；热射流点火；射流核心；射流特性

GONG Er-lei,LI Jian-zhong,HAN Qi-xiang. Research on Jet Performance of a Hot Jet Igniter[J]. Journal of Propulsion Technology, 2016, 37(7): 1303-1311.

巩二磊,李建中,韩启祥. 内燃波转子热射流点火装置射流特性研究[J]. 推进技术, 2016, 37(7): 1303-1311.

References

[1] Sameera D, Wijeyakulasuriya,Elharis T, et al. Fuel Proximity Effect on Hot Jet Ignition in a Wave Rotor Constant Volume Combustor[R]. AIAA 2012-4171.
[2] 李建中, 巩二磊, 温泉, 等. 内燃波转子技术对燃气涡轮发动机性能影响[J]. 航空动力学报, 2012, 27(9).
[3] 巩二磊, 李建中, 韩启祥, 等. 内燃波转子非定常流动和燃烧特性分析[J]. 南京航空航天大学学报, 2013, 4(3), 309-315.
[4] Goossak Lev Abramovich. Method of Prechamber-Torch Ignition in Internal Combustion Engines[P]. US Patent: US3230939A, 1997.
[5] Oppenhrim A K. Pulsed Jet Combustion -a Key to Controlled Combustion Engine[R]. SAE 890153-1989.
[6] Zhao W, Han Q X, Zhang Q. Experimental Investigation on Detonation Initiation with a Transversal Flame Jet[J]. Combustion, Explosion and Shock Waves, 2013, 49(3);171-177.
[7] 王治武, 陈星谷, 郑龙席, 等. 横向射流起爆爆震波数值研究[J]. 推进技术, 2013, 34(3): 422-427. (WANG Zhi-wu, CHEN Xing-gu, ZHENG Long-xi, et al. Numerical Investigation of the Transverse Jet Effect on Detonation Initiation Characteristics[J]. Journal of Propulsion Technology, 2013, 34(3): 422-427.)
[8] Hidetoshi S, Yasuhiro K, Hiroyuki S. A New Ignition System for Pulse Detonation Engine[R]. AIAA 2004-308.
[9] Anonymous. A Pressure-Wave Machine with Integrated Constant Volume Combustion[R]. NEFF Funding of Swiss Energy Research, 1997-426.
[10] Walraven F. Operational Behavior of a Pressure Wave Machine with Constant Volume Combustion[R]. ABB Technical Report Paper CHCRC 94-10, 1994.
[11] Indika U Perera, Sameera D. Hot Combustion Torch Jet Ignition Delay Time for Ethylene-Air Mixtures[R]. AIAA 2011-95.
[12] Indika U Perera. Experimental Investigation into Combustion Torch Jet Ignition of Methane-Air, Ethylene-Air, and Propane-Air Mixtures[D]. Indiana: Purdue University, 2010.
[13] Baronia D, Nalim M R, Akbari P. Numerical Study of Wave Rotor Ignition and Flame Propagation in a Single-Channel Rig[R]. AIAA 2007-5054.
[14] Matsutomi Y, Hein C, LIAN Chenzhou, et al. Facility Development for Testing of Wave Rotor Combustion Rig[R]. AIAA 2007-5052.
[15] Matsutomi Y, Scott E M, Wijeyakulasuriya S, et al. Experimental Investigation on the Wave Rotor Constant Volume Combustor[R]. AIAA 2010-7043.
[16] Karimi A, Rajagopal M, Nalim R. Traversing Hot-Jet Ignition in a Constant Volume Combustor[J]. Journal of Engineering for Gas Turbines and Power, 2014, 136(4).
[17] Chinnathambi P. Experimental Study of Traversing Hot-Jet Ignition of Lean Hydrocarbon-Air Mixtures in a Constant Volume Combustor[D]. Indiana: Purdue?University, 2013.
[18] 张勃, 吉洪湖. 圆转矩形大宽高比收敛喷管过渡型面及喷管形式对射流掺混特性影响[J]. 航空动力学报, 2007, 22(3): 384-388.
[19] 张勃, 吉洪湖, 黄伟, 等. 圆转矩形喷管射流掺混特性[J]. 航空动力学报, 2009, 24(11): 2476-2482.
[20] 高伟, 林振宇, 张弛. 火焰射流在横向气流中喷射特性试验[J]. 航空动力学报, 2009, 24(12): 2666-2670.
[21] 王卫东. 横喷射流与空气混合增强的试验研究[J]. 推进技术, 1998, 19(3), 52-57. (WANG Wei-dong.Experimental Study on Mixing Enhancement of Vortex Generator Jets[J]. Journal of Propulsion Technology, 1998, 19(3): 52-57.)
[22] 张青藩, 席平, 种强. 偏心射流燃烧室特性试验研究[J]. 推进技术, 1991, 12(4): 57-60. (ZHANG Qing-fan, XI Ping, ZHONG Qiang. An Investigation on the Characteristics of Combustor with Oblique Air Jet[J]. Journal of Propulsion Technology, 1991, 12(4): 57-60.)
[23] 王海峰, 陈义良, 蔡晓丹. 湍流射流扩散火焰的层流火焰面模拟[J]. 推进技术, 2011, 24(1): 58-62. (WANG Hai-feng, CHEN Yi-liang, CAI Xiao-dan. Flamelet Modeling of Turbulent Jet Non-Premixed Flame[J]. Journal of Propulsion Technology, 2011, 24(1): 58-62.)(编辑:史亚红)　　　　　　　　　　　　　*　收稿日期:2015-01-23；修订日期:2015-04-16。基金项目:国家自然科学基金(51476077)；江苏省研究生培养创新工程(KYLX-0299)。作者简介:巩二磊 ,男,博士生,研究领域为非定常燃烧技术以及内燃波转子关键技术。E-mail: gongerlei359543043@163.com

Research on Jet Performance of a Hot Jet Igniter

内燃波转子热射流点火装置射流特性研究

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