流动分离与涡结构显示的激光诱导荧光水洞实验技术
|
摘要
开展激光诱导荧光水洞实验技术研究的目的是为流动分离与涡结构显示提供实用、直观、有效的观测手段。本项工作在1 m×1 m水洞配置的连续片光设备基础上,针对532 nm波长激光光源特性,依据光学参数匹配原则选择了罗丹明B作为染色剂与荧光剂,围绕染色剂与荧光剂的配置方法,连续激光器的激光强度、试验段流速、染色线出孔压力之间的匹配关系,照相、摄像视场与流动结构对比度匹配关系等问题,建立了激光诱导荧光实验系统,对圆柱绕流及尾流结构、运输机全机模型的机翼绕流与尾流结构、运输机尾舱门周围流场旋涡结构开展了实验研究。典型的流动分离与涡结构显示结果表明:激光诱导荧光技术具备从边界层结构到空间分离以及尾流特性等全覆盖的流场结构显示能力,值得推广应用。
The purpose of the study on experiment technology of laser induced fluorescence in water tunnel is to provide a practical, intuitive, and effective method for flow visualization on separation and vortex structure. Rhodamine B was selected as the stain and fluorescence agent which matched the optical parameter and the characteristics of green laser sheet with 532 nm wavelength in 1 m ×1 m water tunnel.The study focused on the key technical problems such as the constitution and preparation method of stain and fluorescent agent, the selection of the optimum intensity of continuous laser, the matching relationship between flow velocity and the pore pressure of dyeing line and the matching relationship between camera field of view and the flow structure in the contrast of fine adjustment. The experiments were carried out to investigate the flow field around a cylinder, the wing of a transport plane model and the cargo door of a transport plane model together with the wake by means of the dedicated laser induced fluorescence experiment technology. The typical experiment results verify that the dedicated laser induced fluorescence technique is suitable for flow visualization on flow separation and vortex structure including boundary layer, spatial separation and wake field which is a promising method worthy of popularization and application.
The purpose of the study on experiment technology of laser induced fluorescence in water tunnel is to provide a practical, intuitive, and effective method for flow visualization on separation and vortex structure. Rhodamine B was selected as the stain and fluorescence agent which matched the optical parameter and the characteristics of green laser sheet with 532 nm wavelength in 1 m ×1 m water tunnel.The study focused on the key technical problems such as the constitution and preparation method of stain and fluorescent agent, the selection of the optimum intensity of continuous laser, the matching relationship between flow velocity and the pore pressure of dyeing line and the matching relationship between camera field of view and the flow structure in the contrast of fine adjustment. The experiments were carried out to investigate the flow field around a cylinder, the wing of a transport plane model and the cargo door of a transport plane model together with the wake by means of the dedicated laser induced fluorescence experiment technology. The typical experiment results verify that the dedicated laser induced fluorescence technique is suitable for flow visualization on flow separation and vortex structure including boundary layer, spatial separation and wake field which is a promising method worthy of popularization and application.
引文
[1]Fan Jiechuan.Flow Visulization Technique in Modern Age[M].Beijing:National Defence Industry Press,2002:248-250.(in Chinese)范洁川.近代流动显示技术[M].北京:国防工业出版社,2002:248-250.
[2]Chen Niannian.Study on high sensitive laser induced fluorescence detection system[D].Hangzhou:Zhejiang University,2013:1-3.(in Chinese)
[3]Niu lijun.Laser induced fluorescence detector based on liquid lens[D].Beijing:Beijing Institute of Technology,2016:4-6.(in Chinese)
[4]Zhou Lingyun,Xu Lin,Zhang Canbang,et al.Mechanism of the genetic mutagenesis effects of far infrared ray laser[J].Opto-Electronics Letters,2005,1(2):158-160.
[5]Zhou Lingyun.Resonance exciting atoms of laser act on biomolecule[J].Chinese Journal of Atomic and Molecule Physics,1995,12(3):310-316.
[6]Guifu B.Experiment of fluorescence spectrum of Whole blood irradiated by He-Ne laser[J].Laser Journal,2009,30(2):75-77.
[7]Young C V.Time-resolved laser-induced fluorescence diagnostics for electric propulsion and their application to breathing mode dynamics[J].Plasma Sources Sci Technol,2018,27:094004.
[8]Yang Zhenghai,Yang Yongcheng,Deng Lianzhong,et al.Absolute density measurement of nitrogen dioxide with cavity-enhanced laser-induced fluorescence[J].Chinese Phys B,2018,27(10):100601.
[9]Li Tao,Pareja Jhon,Fuest Frederik,et al.Tomographic imaging of OH laser-induced fluorescence in laminar and turbulent jet flames[J].Measurement Science and Technology,2018(29):015206.
[10]Mattingly Sean W,Skiff Fred.FPGA based demodulation of laser induced fluorescence in plasmas[J].Review of Scientific Instrument,2018,89(4):043508.
[11]Fisher Dustin M,Kelly Ralph F,Patel Deep R,et al.Asupport vector regression method for efficiently determining neutral profiles from laser induced fluorescence data[J].Review of Scientific Instrument,2018,89(10):10C104.
[12]Chaplin Vernon H.Laser-induced fluorescence measurements of acceleration zone scaling in the 12.5 kWHERMeS Hall thruster[J].Journal of Applied Physics,2018(124):183302.
[13]Sanders Scott E,Wils Oliver R,Hendrik Nahler N.Absolute fluorescence and absorption measurements over a dynamic range of 106with cavity-enhanced laser-induced fluorescence[J].The Journal of Chemical Physics,2018(149):014201.
[14]Kang J,Wang Y R,Li R H,et al.Surface elemental microanalysis with submicron lateral resolution by the laser-ablation laser-induced fluorescence technique[J].Optics Express,2018,26(11):14689-14699.
[15]Harilal S S,LaHaye N L,Phillip M C.High-resolution spectroscopy of laser ablation plumes using laserinduced fluorescence[J].Optics Express,2017,25(3):2312-2326.
[2]Chen Niannian.Study on high sensitive laser induced fluorescence detection system[D].Hangzhou:Zhejiang University,2013:1-3.(in Chinese)
[3]Niu lijun.Laser induced fluorescence detector based on liquid lens[D].Beijing:Beijing Institute of Technology,2016:4-6.(in Chinese)
[4]Zhou Lingyun,Xu Lin,Zhang Canbang,et al.Mechanism of the genetic mutagenesis effects of far infrared ray laser[J].Opto-Electronics Letters,2005,1(2):158-160.
[5]Zhou Lingyun.Resonance exciting atoms of laser act on biomolecule[J].Chinese Journal of Atomic and Molecule Physics,1995,12(3):310-316.
[6]Guifu B.Experiment of fluorescence spectrum of Whole blood irradiated by He-Ne laser[J].Laser Journal,2009,30(2):75-77.
[7]Young C V.Time-resolved laser-induced fluorescence diagnostics for electric propulsion and their application to breathing mode dynamics[J].Plasma Sources Sci Technol,2018,27:094004.
[8]Yang Zhenghai,Yang Yongcheng,Deng Lianzhong,et al.Absolute density measurement of nitrogen dioxide with cavity-enhanced laser-induced fluorescence[J].Chinese Phys B,2018,27(10):100601.
[9]Li Tao,Pareja Jhon,Fuest Frederik,et al.Tomographic imaging of OH laser-induced fluorescence in laminar and turbulent jet flames[J].Measurement Science and Technology,2018(29):015206.
[10]Mattingly Sean W,Skiff Fred.FPGA based demodulation of laser induced fluorescence in plasmas[J].Review of Scientific Instrument,2018,89(4):043508.
[11]Fisher Dustin M,Kelly Ralph F,Patel Deep R,et al.Asupport vector regression method for efficiently determining neutral profiles from laser induced fluorescence data[J].Review of Scientific Instrument,2018,89(10):10C104.
[12]Chaplin Vernon H.Laser-induced fluorescence measurements of acceleration zone scaling in the 12.5 kWHERMeS Hall thruster[J].Journal of Applied Physics,2018(124):183302.
[13]Sanders Scott E,Wils Oliver R,Hendrik Nahler N.Absolute fluorescence and absorption measurements over a dynamic range of 106with cavity-enhanced laser-induced fluorescence[J].The Journal of Chemical Physics,2018(149):014201.
[14]Kang J,Wang Y R,Li R H,et al.Surface elemental microanalysis with submicron lateral resolution by the laser-ablation laser-induced fluorescence technique[J].Optics Express,2018,26(11):14689-14699.
[15]Harilal S S,LaHaye N L,Phillip M C.High-resolution spectroscopy of laser ablation plumes using laserinduced fluorescence[J].Optics Express,2017,25(3):2312-2326.