[author_cn_name].[cn_title][J].空军工程大学学报:自然科学版,[year_id],[volume]([issue]):[start_page]-[end_page] 横向来流对等离子体点火器射流特性的影响- Study of Influence of Transverse Flow on Jet Characteristics of Plasma Igniter
文章摘要
赵志宇,张伟嘉,何立明,刘雄,赵兵兵,雷健平,费力.横向来流对等离子体点火器射流特性的影响[J].空军工程大学学报:自然科学版,2021,22(5):23-29
横向来流对等离子体点火器射流特性的影响
Study of Influence of Transverse Flow on Jet Characteristics of Plasma Igniter
  
DOI:
中文关键词: 横向来流速度  射流特性  等离子体点火器  纹影摄像
英文关键词: transverse incoming flow velocity  jet characteristics  airborne plasma igniter  schlieren cinematography
基金项目:
作者单位
赵志宇,张伟嘉,何立明,刘雄,赵兵兵,雷健平,费力 1.空军工程大学飞行器与动力工程系 西安 710038
2.西华大学计算机与软件工程学院成都610039 
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中文摘要:
      为研究航空等离子体点火器的射流特性,采用纹影摄像技术记录了等离子体射流的形成及发展过程,研究来流环境下横向来流速度对航空等离子体点火器射流特性的影响规律。结果表明:在横向来流条件下,来流速度的增大会使得射流偏转角增大,当横向来流速度vm=5 m/s时,射流偏转角θ=15.9°,当横向来流速度vm=20 m/s时,射流偏转角θ=77.1°,来流速度增大15 m/s,射流偏转角增大3.8倍;同时来流速度增大时,会加大等离子体射流动量与热量的损失速率,导致等离子体射流穿透深度、射流速度、射流面积及射流面积变化率均减小。
英文摘要:
      In order to study the jet characteristics of airborne plasma igniter, the formation and development process of plasma jet is recorded by schlieren camera technology, and the influence of the transverse inflow velocity on the jet characteristics of airborne plasma igniter is studied. The results show that under condition of the transverse inflow, the increase of the incoming flow velocity makes the deflection angle of the jet great. When the transverse inflow velocity Vm=5 m/s, the efflux Angle θ=15.9°; when the transverse inflow velocity Vm=20 m/s, the efflux Angle θ=77.1°; when the inflow velocity increases by 15 m/s, the efflux Angle increases by 3.8 times. At the same time, when the incoming flow velocity increases, the loss rate of plasma jet momentum and heat increase, resulting in the decrease of plasma jet penetration depth, jet velocity, jet area and jet area change rate.
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