惰性气体−空气混合电弧流场特性研究

杜百合; 张松贺; 葛强; 王茂刚

doi:10.11729/syltlx20210052

惰性气体−空气混合电弧流场特性研究

doi: 10.11729/syltlx20210052

中国空气动力研究与发展中心超高速空气动力研究所，绵阳　621000

基金项目: 载人航天领域预先研究项目（010502）

详细信息

作者简介:
杜百合：（1970—），男，甘肃静宁人，正高级工程师。研究方向：高超声速气动热防护试验技术。通讯地址：四川省绵阳市涪城区二环路南段6号5信箱（621000）。E-mail：dubh@ustc.edu

通讯作者:
E-mail：dubh@ustc.edu

中图分类号: V211.74⁺4
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- 被引次数: 0
出版历程
- 收稿日期: 2021-05-27
- 修回日期: 2021-07-16
- 录用日期: 2021-07-29
- 刊出日期: 2022-10-01

Study on flow field characteristics of inert gas-air hybrid arc

Hypervelocity Aerodynamics Institute of China Aerodynamics Research and Development Center, Mianyang　621000, China

摘要

摘要: 理论上小流率惰性气体添加到大流率空气电弧中不会影响对热防护材料的性能评估。采用控制电弧电流和惰性气体质量流率的方法，在电弧风洞实验平台上研究了分别在空气电弧中添加氦气（He）、氖气（Ne）、氩气（Ar）、氪气（Kr）等惰性气体−空气混合电弧的特性，测量了超声速喷管出口驻点热流密度、驻点压力和出口气流平均焓值等参数，分析了电弧电流、气体总质量流率、惰性气体质量流率占比等因素对流场特性的影响。实验结果表明：氦气质量流率占比11.46%、总质量流率0.2 kg/s、电弧电流1300 A条件下的氦气−空气混合电弧的出口气流平均焓值和热流密度分别比纯空气电弧增加了6.07%和1.02%；氖气、氩气和氪气等惰性气体−空气混合电弧在超声速喷管出口的焓值和驻点压力均低于纯空气电弧，且随混合气体总质量流率和电弧电流的增大而增大，其增大程度与添加气体介质的种类和质量流率占比有关。
- 惰性气体 /
- 混合电弧 /
- 等离子体 /
- 流场特性
Abstract: Adding a small mass flow rate of inert gas into the air arc flow field does not affect the performance evaluation of the thermal protection materials. In order to obtain the flow field characteristics of the inert gas-air hybrid arc, the flow field parameters of the supersonic nozzle exit were studied by controlling the arc current and inert gas mass flow rate in an arc heated wind tunnel. The experimental results show that the enthalpy and stagnation point heat flux of the helium-air hybrid arc are 6.07% and 1.02% higher than that of the air arc flow field respectively under the condition of helium mass ratio of 11.46%, total mass flow rate of 0.2 kg/s and arc current of 1300 A; the enthalpy and stagnation point pressure of the hybrid arc with inert gases such as neon, argon and krypton are lower than that of the air arc at the exit of the supersonic nozzle, and increase with the increase of mixed gas flow rate and arc current. The increase degree is related to the proportion of the added gas medium and total mass flow rate.
- inert gas /
- hybrid arc /
- plasma /
- flow field characteristics

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图 1 实验设备原理图

Figure 1. Schematic diagram of experimental equipment

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图 2 驻点热流密度测量结果

Figure 2. Stagnation heat flux measurement results

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图 3 驻点压力测量结果

Figure 3. Stagnation pressure measurement results

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图 4 出口气流平均焓值测量结果

Figure 4. Measurement results of average enthalpy value of outletgas flow

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图 5 出口气流平均焓值随电弧电流变化曲线

Figure 5. Average enthalpy of outlet gas flow versus arc current curve

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图 6 出口气流平均焓值随总质量流率的变化曲线

Figure 6. Average enthalpy of outlet gas flow versus mass flowrate curve

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图 7 氦气−空气混合电弧与纯空气电弧的出口气流平均焓值比较

Figure 7. Comparison of average enthalpy of outlet gas flow between helium–air mixed arc and air arc

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表 1 试验参数

Table 1. Experimental parameters

添加介质	介质质量流率G_m/（kg·s⁻¹）	空气质量流率G_air/（kg·s⁻¹）	气体总质量流率G/（kg·s⁻¹）	电弧电流I/A
空气（干燥）	—	0.1530	0.1530	1100
	—	0.2040	0.2040	1300
	—	0.2560	0.2560	1500
氦气	0.0224	0.1200	0.1424	1100
	0.0224	0.1730	0.1954	1300
	0.0224	0.2210	0.2434	1500

氖气	0.0797	0.0910	0.1707	1100
	0.0797	0.1240	0.2037	1300
	0.0797	0.1720	0.2517	1500

氩气	0.0564	0.1500	0.2064	1100
	0.0564	0.2030	0.2594	1300
	0.0564	0.2520	0.3084	1500

氪气	0.2267	0.0910	0.3177	1100
	0.2267	0.0920	0.3187	1300
	0.2267	0.0900	0.3167	1500

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参考文献(17)

[1]	GOLDSTEIN E M. Plasma arc testing of hypervelocity materials[J]. Journal of Spacecraft and Rockets,1968,5(10):1232-1233. doi: 10.2514/3.29459
[2]	AMUNDSON M, SMITH D. Ground test and evaluation methodologies and techniques for the development of endoatmospheric interceptors[C]//Proc of the Annual Interceptor Technology Conference. 1993. doi: 10.2514/6.1993-2679
[3]	BALTER-PETERSON A, NICHOLS F, MIFSUD B, et al. Arc jet testing in NASA Ames Research Center thermophysics facilities[C]//Proc of the AlAA 4th International Aerospace Planes Conference. 1992. doi: 10.2514/6.1992-5041
[4]	Dorrance W H. Viscous hypersonic flow[M]. New York: McGraw-Hill, 1962: 69-101
[5]	孟显,李腾,潘文霞,等. 层流氩等离子体射流温度的测量[J]. 强激光与粒子束,2011,23(3):783-786. doi: 10.3788/HPLPB20112303.0783 MENG X,LI T,PAN W X,et al. Temperature measurements of laminar argon plasma jet[J]. High Power Laser and Particle Beams,2011,23(3):783-786. doi: 10.3788/HPLPB20112303.0783
[6]	潘文霞,孟显,吴承康. 直流纯氩层流等离子体射流的长度变化[J]. 工程热物理学报,2005,26(4):677-679. doi: 10.3321/j.issn:0253-231X.2005.04.042 PAN W X,MENG X,WU C K. Length change of dc laminar-flow argon plasma-jet[J]. Journal of Engineering Thermophysics,2005,26(4):677-679. doi: 10.3321/j.issn:0253-231X.2005.04.042
[7]	查柏林,江鹏,袁晓静,等. 等离子体射流特性分析[J]. 核聚变与等离子体物理,2012,32(2):187-192. doi: 10.3969/j.issn.0254-6086.2012.02.016 ZHA B L,JIANG P,YUAN X J,et al. The study of plasma jet characteristics[J]. Nuclear Fusion and Plasma Physics,2012,32(2):187-192. doi: 10.3969/j.issn.0254-6086.2012.02.016
[8]	赵文华,田阔,刘笛,等. 电弧等离子体射流核脉动及射流形貌[J]. 清华大学学报(自然科学版),2002,42(4):442-445. doi: 10.3321/j.issn:1000-0054.2002.04.005 ZHAO W H,TIAN K,LIU D,et al. Fluctuations of the core and the jet shape of an arc plasma spraying jet[J]. Journal of Tsinghua University (Science and Technology),2002,42(4):442-445. doi: 10.3321/j.issn:1000-0054.2002.04.005
[9]	严建华,屠昕,马增益,等. 大气压直流氩等离子体射流工作特性研究[J]. 物理学报,2006,55(7):3451-3457. doi: 10.3321/j.issn:1000-3290.2006.07.042 YAN J H,TU X,MA Z Y,et al. Characterization of DC argon plasma jet at atmospheric pressure[J]. Acta Physica Sinica,2006,55(7):3451-3457. doi: 10.3321/j.issn:1000-3290.2006.07.042
[10]	雷枭,方志,邵涛,等. 大气压氖气介质阻挡放电脉冲等离子射流特性[J]. 强激光与粒子束,2012,24(5):1206-1210. doi: 10.3788/HPLPB20122405.1206 LEI X,FANG Z,SHAO T,et al. Characterization of dielectric barrier discharge pulse plasma jet in neon at atmospheric pressure[J]. High Power Laser and Particle Beams,2012,24(5):1206-1210. doi: 10.3788/HPLPB20122405.1206
[11]	牛铮,邵涛,章程,等. 纳秒脉冲放电等离子体射流特性[J]. 强激光与粒子束,2012,24(3):617-620. doi: 10.3788/HPLPB20122403.0617 NIU Z,SHAO T,ZHANG C,et al. Characteristics of nanosecond-pulse atmospheric pressure plasma jet[J]. High Power Laser and Particle Beams,2012,24(3):617-620. doi: 10.3788/HPLPB20122403.0617
[12]	向勇,余德平,曹修全,等. 直流纯氮层流等离子体射流特性的实验研究[J]. 强激光与粒子束,2014,26(9):092005. doi: 10.11884/HPLPB201426.092005 XIANG Y,YU D P,CAO X Q,et al. Experimental study on characteristics of direct-current laminar-flow nitrogen plasma-jet[J]. High Power Laser and Particle Beams,2014,26(9):092005. doi: 10.11884/HPLPB201426.092005
[13]	王德文,杨月诚,査柏林. 氩/氢等离子射流特性研究[J]. 四川兵工学报,2013,34(7):141-144. WANG D W,YANG Y C,ZHA B L. Study on characteristics of Ar/H2 plasma jet[J]. Journal of Sichuan Ordnance,2013,34(7):141-144.
[14]	DO H, PASSARO A, LEE T, et al. Ethylene flame dynamics in an arc-heated hypersonic wind tunnel[R]. AIAA 2013-0700, 2013. doi: 10.2514/6.2013-700
[15]	XIN C,WU J W,LIU B,et al. Plasma characteristics of DC hydrogen—nitrogen mixed gas arc under high pressure[J]. IEEE Transactions on Plasma Science,2014,42(10):2722-2723. doi: 10.1109/TPS.2014.2340432
[16]	BUBLIEVSKY A F,GORBUNOV A V,MARQUESI A R,et al. Generalization of the total current-voltage characteristics for transferred arc plasma torch with steam and air plasmas based on the analytical anisotropic model[J]. IEEE Transactions on Plasma Science,2015,43(10):3707-3715. doi: 10.1109/TPS.2015.2469675
[17]	HAMMOCK G L. Expansion of the AEDC H₂ arc heater facility test envelope using cold-air mixing[R]. AIAA 2017-4527 2017. doi: 10.2514/6.2017-4527