Simulated particle field imaging for tomography particle image velocimetry

Zhang Xiaohang; Ceng Bo; Li Shaofu; Liu Yi

doi:10.11884/HPLPB201830.180117

Volume 30 Issue 11

Nov. 2018

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Article Navigation > High Power Laser and Particle Beams > 2018 > 30(11): 114003

Zhang Xiaohang, Ceng Bo, Li Shaofu, et al. Simulated particle field imaging for tomography particle image velocimetry[J]. High Power Laser and Particle Beams, 2018, 30: 114003. doi: 10.11884/HPLPB201830.180117

Citation:

Zhang Xiaohang, Ceng Bo, Li Shaofu, et al. Simulated particle field imaging for tomography particle image velocimetry[J]. High Power Laser and Particle Beams, 2018, 30: 114003. doi: 10.11884/HPLPB201830.180117

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Simulated particle field imaging for tomography particle image velocimetry

doi: 10.11884/HPLPB201830.180117

Zhang Xiaohang^1
,,
Ceng Bo^{1, 2, 3
,
,},
Li Shaofu¹,
Liu Yi¹

1.
College of Information Engineering, Southwest University of Science and Technology of China, Mianyang 621900, China
2.
Low Speed Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621900, China
3.
Aerodynamic Noise Control Key Laboratory, China Aerodynamics Research and Development Center, Mianyang 621900, China

Received Date: 2018-04-23
Rev Recd Date: 2018-08-14
Publish Date: 2018-11-15

Abstract

Abstract

Tomography particle image velocimetry (Tomo-PIV) is a laser speed measurement technique that obtains a three-dimensional velocity field in a space. Based on the Tomo-PIV imaging theory, this paper analyzes the relation between optics model of trace particle imaging and the three-dimensional discrete projection method of CT image reconstruction. A new synthetic images computing method which corresponds to the real wind tunnel's parameters are proposed. Then, a simulation laser illumination system with an irradiated volume of 80 mm×100 mm×100 mm is developed. The simulated Tomo-PIV images are obtained from the three-dimensional trace particles imaging model programmed by MATLAB. The factors affecting the imaging quality of PIV system are analyzed. Comparison of the synthetic images with the real particle images in which the number of particles per pixel is 0.007 7 shows the correctness of this simulation method.
- tomography particle image velocimetry,
- wind tunnel,
- laser lighting,
- tracer particles,
- particle imaging

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References(10)

References

[1]	Kim S K, Chung S K. An investigation on airflow in disordered nasal cavity and its corrected models by Tomo-PIV[J]. Measurement Science & Technology, 2004, 15(15): 1090-1096.
[2]	Elsinga G E, Scarano F, Wieneke B, et al. Tomographic particle image velocimetry[J]. Experiments in Fluids, 2006, 41(6): 933-947. doi: 10.1007/s00348-006-0212-z
[3]	Scarano F. Tomo-PIV: Principles and practice[J]. Measurement Science & Technology, 2013, 24: 012001.
[4]	赵宇. PIV测试中示踪粒子性能的研究[D]. 大连: 大连理工大学, 2004: 10-12. Zhao Yu. Study on properties of tracer particles in PIV test. Dalian: Dalian University of Science and Technology, 2004: 10-12
[5]	高琪, 王洪平. 层析PIV技术及其合成射流测量[J]. 中国科学: 技术科学, 2013(7): 106-113. https://www.cnki.com.cn/Article/CJFDTOTAL-JEXK201307017.htm Gao Qi, Wang Hongping. Tomo-PIV technology and its synthetic jet measurement. Chinese Science: Technical Science, 2013(7): 106-113 https://www.cnki.com.cn/Article/CJFDTOTAL-JEXK201307017.htm
[6]	张芬. Tomo-PIV的立体照明技术研究[D]. 南京: 南京理工大学, 2017: 18-26. Zhang Fen. Research on stereo lighting technology of Tomo-PIV. Nanjing: Nanjing University of Science and Technology, 2017: 18-26)
[7]	Goodman J W, Cox M E. Introduction to Fourier optics[M]. New York: McGraw-Hill, 1968: 128-132.
[8]	Adrian R J, Yao C S. Pulsed laser technique application to liquid and gaseous flows and the scattering power of seed materials[J]. Applied Optics, 1985, 24(1): 44-52. doi: 10.1364/AO.24.000044
[9]	Adrian R J, Yao C S. Power spectra of fluid velocities measured by laser Doppler velocimetry[J]. Experiments in Fluids, 1986, 5(1): 17-28. doi: 10.1007/BF00272419
[10]	Novara M, Scarano F. Performances of motion tracking enhanced Tomo-PIV on turbulent shear flows[J]. Experiments in Fluids, 2012, 52(4): 1027-1041. doi: 10.1007/s00348-011-1187-y