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Background-oriented schlieren experimental and simulation study of the effect of sidewalls on optical turbulence anisotropy in a thermal convection turbulence simulator

文献类型：期刊论文

作者Li, Yanling2,3; Ren, Yichong4; Mei, Haiping2; Ye, Shuran2; Tao, Zhiwei2; Liu, Shiwei1,3; Zhang, Junxin2,3; Li, Xinmiao2,3; Cui, Chaolong2; Wu, Xiaoqing2
刊名OPTICS AND LASER TECHNOLOGY
出版日期2024-10-01
卷号177
关键词Background -oriented schlieren Phase retrieval Large -eddy simulation Phase structure function Optical turbulence Turbulence simulator
ISSN号0030-3992
DOI10.1016/j.optlastec.2024.111214
通讯作者Mei, Haiping(hpmei@aiofm.ac.cn)
英文摘要The anisotropic optical structure characteristics within the Rayleigh-Benard (RB) turbulence simulator have been investigated through experiment and simulation. We collected data using background-oriented schlieren technology and extracted displacements using optical flow algorithms. The wavefront phase can be recovered using the conjugate gradient iterative algorithm. We analyzed the optical structural characteristics within the turbulence simulator under different temperature differences. It is observed that with an increased temperature difference, the spatial correlation of the refractive index field decreases at an accelerated rate as the separation distance increases, and the degree of anisotropy characterized by the phase structure function increases. Large eddy simulation and split-step beam propagation method complement experimental results. Numerical simulations demonstrate consistency with experimental data. The results show that the von Karman power spectral density fits the simulation and experimental phase structure function very well relative to the Kolmogorov power spectral density, which demonstrates that the simulation system combining dynamics simulation and optical simulation can achieve power spectral characteristics that are consistent with reality. The experimental and simulation results are crucial for understanding the flow field's optical structural properties inside the turbulence simulator. They will help to construct a suitable turbulence simulator for optical engineering applications and establish a rational scheme for analyzing its internal optical structural properties.
WOS关键词LIGHT-PROPAGATION ; PHASE ; TOMOGRAPHY ; INTENSITY ; ALGORITHM ; FIELD
资助项目National Natural Science Foundation of China (NSFC)[12302514] ; National Natural Science Foundation of China (NSFC)[62301530] ; HFIPS Director's Foundation[YZJJ2023QN05] ; Open Fund of Infrared and Low Temperature Plasma Key Laboratory of Anhui Province, NUDT[IRKL2023KF05] ; Major Research plan of the National Natural Science Foundation of China[91752103]
WOS研究方向Optics ; Physics
语种英语
WOS记录号WOS:001247320100001
出版者ELSEVIER SCI LTD
资助机构National Natural Science Foundation of China (NSFC) ; HFIPS Director's Foundation ; Open Fund of Infrared and Low Temperature Plasma Key Laboratory of Anhui Province, NUDT ; Major Research plan of the National Natural Science Foundation of China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/136182]  
专题中国科学院合肥物质科学研究院
通讯作者Mei, Haiping
作者单位1.Univ Sci & Technol China, Sch Environm Sci & Optoelect Technol, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Key Lab Atmospher Opt, Hefei 230031, Peoples R China
3.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
4.Hefei Univ Technol, Sch Phys, Hefei 230009, Peoples R China
推荐引用方式
GB/T 7714		 Li, Yanling,Ren, Yichong,Mei, Haiping,et al. Background-oriented schlieren experimental and simulation study of the effect of sidewalls on optical turbulence anisotropy in a thermal convection turbulence simulator[J]. OPTICS AND LASER TECHNOLOGY,2024,177.
APA Li, Yanling.,Ren, Yichong.,Mei, Haiping.,Ye, Shuran.,Tao, Zhiwei.,...&Rao, Ruizhong.(2024).Background-oriented schlieren experimental and simulation study of the effect of sidewalls on optical turbulence anisotropy in a thermal convection turbulence simulator.OPTICS AND LASER TECHNOLOGY,177.
MLA Li, Yanling,et al."Background-oriented schlieren experimental and simulation study of the effect of sidewalls on optical turbulence anisotropy in a thermal convection turbulence simulator".OPTICS AND LASER TECHNOLOGY 177(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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