激波及诱导的高速气流抛撒柴油油膜的实验研究

黄勇; 解立峰; 叶经方; 鲁长波; 安高军; 熊春华; 李永坚; 徐淳

doi:10.11858/gywlxb.2016.03.008

激波及诱导的高速气流抛撒柴油油膜的实验研究

doi: 10.11858/gywlxb.2016.03.008

黄勇^{1, 2,},
解立峰^1,*, ,,
叶经方³,
鲁长波⁴,
安高军⁴,
熊春华⁴,
李永坚⁵,
徐淳²

1.
南京理工大学化工学院，江苏南京 210094
2.
常州大学环境与安全工程学院，江苏常州 213164
3.
南京理工大学瞬态物理国家重点实验室，江苏南京 210094
4.
中国人民解放军总后勤部油料研究所，北京 102300
5.
山西江阳化工有限公司，山西太原 030043

基金项目:

国家科技部国际科技合作重大专项资助 2013DFR60080

江苏省科技厅计划项目 BE2014735

常州市科技发展项目 CE20135035

详细信息

作者简介:
黄勇(1978—)，男，博士研究生，主要从事燃烧、爆炸及其作用机理、化工安全技术研究.E-mail:huangyong001@cczu.edu.cn

通讯作者:
解立峰(1965—)，男，博士，教授，博士生导师，主要从事多相爆轰理论与防火防爆技术研究.E-mail:xielifeng319@sina.com

中图分类号: O383
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出版历程
- 收稿日期: 2015-06-16
- 修回日期: 2015-08-28

Experimental Study on Diesel Fuel Film Dispersed by Shock Wave and High-Speed Airflow

1.
School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
2.
School of Environmental and Safety Engineering, Changzhou University, Changzhou Jiangsu 213164, China
3.
National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, China
4.
Beijing POL Research Institute, Beijing 102300, China
5.
Shanxi Jiangyang Chemical Industry Co., Ltd., Taiyuan 030043, China

摘要

摘要: 采用立式激波管装置，研究了激波及诱导的高速气流抛撒4种柴油油膜的规律及其雾化过程。运用压力测试系统得到了激波作用油膜前后的压力、波速的变化，并通过阴影成像系统记录了油膜的抛撒情况。实验结果表明：马赫数约为1.12的激波作用4种油膜后激波均衰减为高速气流，并且黏度较小的1、2号油膜雾化效果较好，而黏度较大的3、4号油膜抛撒后呈液块、液丝状。黏度较小的油膜初始抛撒速度大，但抛撒速度衰减较快，而黏度较大的油膜对气动力的阻碍作用更大，所以初始抛撒速度较小，且抛撒的距离和速度随黏度的增大而减小。
- 激波 /
- 高速气流 /
- 抛撒 /
- 油膜 /
- 雾化 /
- 二次破碎
Abstract: The dispersion principle and atomization process of four kinds of diesel fuel films induced by shock wave and high-speed airflow was studied, employing a vertical shock tube.The pressure and velocity of the shock wave, before and after reaching the diesel fuel films, were measured by a pressure acquisition system.The dispersion process of the diesel fuel films was recorded by a shadow-graph system.The experimental results show that the shock wave in 1.12 Mach was weakened to a high-speed airflow after impacting on the diesel fuel films.The atomization effect of diesel fuel film 1 and 2 is better, while its viscosity is low.In contrast, diesel fuel film 3 and 4 with a higher viscosity were broken up into big pieces and silks after the dispersion process.It can also be concluded that the diesel fuel films with a lower viscosity have a larger initial dispersion velocity, whereas it will be reduced faster.Apparently, the diesel fuel films with a higher viscosity have a smaller velocity because they have an obstructive effect on the aerodynamic force.Moreover, the corresponding dispersion distance and velocity decreased with the increase of the viscosity.
- shock wave /
- high-speed airflow /
- dispersion /
- fuel film /
- atomization /
- secondary breakup

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图 1 实验装置示意图

Figure 1. Schematic of experimental device

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图 2 激波成像系统

Figure 2. Shock wave imaging system

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图 3 压力波形图

Figure 3. Pressure waveforms

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图 4 激波波系示意图

Figure 4. Schematic of shock wave structure

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图 5 激波成像照片

Figure 5. Shock wave photographs

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图 6 激波抛撒柴油油膜

Figure 6. Diesel fuel films dispersed by shock wave

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图 7 油膜抛撒运动轨迹

Figure 7. The dispersion trajectory of diesel fuel films

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图 8 油膜抛撒速度

Figure 8. The dispersion velocity of diesel fuel films

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表 1 柴油样品的组分和理化性质

Table 1. Components and physical & chemical properties of diesel fuel samples

Diesel fuel samples	Component	T_f/(℃)	ρ/(kg/m³)	μ(20℃)/(μm^-2·s^-1)	α(20℃)/[g/(m·s)]	σ(20℃)/(mN/m)
Diesel fuel 1	-10 diesel fuel	84	794.1	3.934	3.124	31.64
Diesel fuel 2	Emulsified diesel fuel with 5% water content	87	821.9	6.477	5.323	32.53
Diesel fuel 3	Emulsified diesel fuel with 5% water content and 0.2% explosion suppressant	91	823.5	12.011	9.891	32.11
Diesel fuel 4	Emulsified diesel fuel with 5% water content and 0.4% explosion suppressant	93	827.4	22.240	18.401	33.48

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表 2 激波参数

Table 2. Shock wave parameters

Diesel fuel samples	v₁/(m/s)	v₂/(m/s)	v₃/(m/s)	p₁/(kPa)	p₂/(kPa)	p₃/(kPa)	p₄/(kPa)
No diesel fuel	577.59	279.15	381.79	521.97	529.13	63.15	26.65
Diesel fuel 1	571.75	290.61	321.34	492.73	495.27	13.97	8.14
Diesel fuel 2	568.94	298.80	296.12	483.78	501.20	10.70	5.20
Diesel fuel 3	574.16	307.44	288.85	495.65	508.59	10.55	4.42
Diesel fuel 4	573.50	314.23	297.46	503.34	514.43	4.38	2.34

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表 3 油膜无量纲参数计算

Table 3. The calculation of dimensionless parameters for diesel fuel films

Diesel fuel samples	V/(mL)	h/(mm)	S/(m/s)	We	Oh	t^*/(μs)
Diesel fuel 1	1	1.65	240.10	3623	0.015	0.18
Diesel fuel 2	1	1.65	222.04	3013	0.025	0.19

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参考文献(13)

[1]	WEATHERFORD W D, NAEGELI D W.Research on fire-resistant diesel fuel flammability mitigation mechanisms:ADA130743[R].San Antonio, TX:Southwest Research Inst, 1982.
[2]	MARTY S D, SCHMITIGAL J.Fire resistant fuel:ADA508203[R].San Antonio, TX:Southwest Research Inst, 2009.
[3]	林璐.俄军"不燃烧"柴油研制概括[J].军需物资油料, 2006, (2):63-64. Lin L.Development process of "no combustion" diesel oil of Russian Army[J].Supplies of Oil, 2006, (2):63-64.
[4]	陆守香, 秦友花.激波诱导的液滴变形与破碎[J].高压物理学报, 2000, 14(2):151-154. doi: 10.3969/j.issn.1000-5773.2000.02.012 LU S X, QIN Y H.Deformation and breakup of droplets behind shock wave[J].Chinese Journal of High Pressure Physics, 2000, 14(2):151-154. doi: 10.3969/j.issn.1000-5773.2000.02.012
[5]	HSIANG L P, FAETH G M.Drop properties after secondary breakup[J].Int J Multiphase Flow, 1993, 19(5):721-735. doi: 10.1016/0301-9322(93)90039-W
[6]	HSIANG L P, FAETH G M.Drop deformation and breakup due to shock wave and steady disturbance[J].Int J Multiphase Flow, 1995, 21(4):545-560. doi: 10.1016/0301-9322(94)00095-2
[7]	SAMIRANT M, SMEET G, BARAS C, et al.Dynamic measurements in combustible and detonable aerosols[J].Propell Explos Pyrot, 1989, 14:47-56. doi: 10.1002/(ISSN)1521-4087
[8]	耿继辉, 叶经方, 王健, 等.激波诱导液滴变形和破碎现象实验研究[J].工程热物理学报, 2003, 24(5):797-800. doi: 10.3321/j.issn:0253-231X.2003.05.023 GENG J H, YE J F, WANG J, et al.Experimental investigation on phenomena of shock wave-induced droplet deformation and breakup[J].Journal of Engineering Thermophysics, 2003, 24(5):797-800. doi: 10.3321/j.issn:0253-231X.2003.05.023
[9]	ANTIPAS G S E.Modelling of the break up mechanism in gas atomization of liquid metals (Part Ⅰ):The surface wave formation model[J].Comput Mater Sci, 2006, 35(4):416-422. http://www.sciencedirect.com/science/article/pii/S0927025605001023
[10]	李斌, 解立峰, 韩志伟, 等.激波作用下水膜变形和雾化实验研究[J].实验力学, 2011, 26(4):464-470. http://d.old.wanfangdata.com.cn/Periodical/sylx201104018 LI B, XIE L F, HAN Z W, et al.Study on deformation and atomization of water films induced by shock wave[J].Journal of Experimental Mechanics, 2011, 26(4):464-470. http://d.old.wanfangdata.com.cn/Periodical/sylx201104018
[11]	张丽丽, 周慎杰, 陈举华.冲击式气流喷嘴雾化模型[J].武汉理工大学学报, 2007, 29(8):135-138. http://d.old.wanfangdata.com.cn/Periodical/whgydxxb200708034 ZHANG L L, ZHOU S J, CHEN J H.Atomizing model of air-blast impingement atomizer[J].Journal of Wuhan University of Technology, 2007, 29(8):135-138. http://d.old.wanfangdata.com.cn/Periodical/whgydxxb200708034
[12]	王海洋, 解立峰, 李斌, 等.激波抛撒水膜程成雾参数实验研究[J].实验流体力学, 2013, 27(2):50-55. doi: 10.3969/j.issn.1672-9897.2013.02.010 WANG H Y, XIE L F, LI B, et al.Experimental study on parameters of water particles in the cloud from liquid film induced by shock wave[J].Journal of Experiments in Fluid Mechanics, 2013, 27(2):50-55. doi: 10.3969/j.issn.1672-9897.2013.02.010
[13]	HSIANG L P, FAETH G M.Near-limit drop deformation and secondary breakup[J].Int J Multiphase Flow, 1992, 18(5):635-652. doi: 10.1016/0301-9322(92)90036-G