In this work, we develop an optoelectronic system for in situ observation and measurement in hypervelocity flows. The system has the advantages of strong radiation resistance and self-adaptive exposure time of the cameras. Thermal ablation test using flat plate thermal protection system material was carried out in an arc jet. Real-time ablation images were captured and analyzed to understand the thermal ablation mechanism. Through the modified algorithms of particle image velocity (PIV) and image feature detection, the surface recession rate and the velocity distribution of the melted droplets flowing on the sample surface were obtained. The experimental results demonstrate vast potential for using this in situ measuring technique in various engineering applications. Finally, the formation and merging of the melted droplets was analyzed based on energy theory, and the numerical simulation results showed good agreement with the actual experimental results.
Issue Section:
Research Papers
References
1.
Natali
, M.
, Kenny
, J. M.
, and Torre
, L.
, 2016
, “Science and Technology of Polymeric Ablative Materials for Thermal Protection Systems and Propulsion Devices: A Review
,” Prog. Mater. Sci.
, 84
, pp. 192
–275
.2.
Zhao
, D.
, Zhang
, C.
, Hu
, H.
, and Zhang
, Y.
, 2011
, “Ablation Behavior and Mechanism of 3D C/ZrC Composite in Oxyacetylene Torch Environment
,” Compos. Sci. Technol.
, 71
(11
), pp. 1392
–1396
.3.
Fang
, X.
, Liu
, F.
, Su
, H.
, Liu
, B.
, and Feng
, X.
, 2014
, “Ablation of C/SiC, C/SiC–ZrO2 and C/SiC–ZrB2 Composites in Dry Air and Air Mixed With Water Vapor
,” Ceram. Int.
, 40
(2
), pp. 2985
–2991
.4.
Badhe
, Y.
, and K
, B.
, 2014
, “Novel Hybrid Ablative Composites of Resorcinol Formaldehyde as Thermal Protection Systems for Re-Entry Vehicles
,” RSC Adv.
, 4
(55
), pp. 28956–28963.5.
Tang
, S.
, Deng
, J.
, Wang
, S.
, Liu
, W.
, and Yang
, K.
, 2007
, “Ablation Behaviors of Ultra-High Temperature Ceramic Composites
,” Mater. Sci. Eng. A
, 465
(1–2
), pp. 1
–7
.6.
Monteverde
, F.
, Savino
, R.
, Fumo
, M. D. S.
, and Di Maso
, A.
, 2010
, “Plasma Wind Tunnel Testing of Ultra-High Temperature ZrB2–SiC Composites Under Hypersonic Re-Entry Conditions
,” J. Eur. Ceram. Soc.
, 30
(11
), pp. 2313
–2321
.7.
Zhang
, X.
, Hu
, P.
, Han
, J.
, and Meng
, S.
, 2008
, “Ablation Behavior of ZrB 2–SiC Ultra High Temperature Ceramics Under Simulated Atmospheric Re-Entry Conditions
,” Compos. Sci. Technol.
, 68
(7–8
), pp. 1718
–1726
.8.
Bauer
, W.
, Fox
, C.
, Gosse
, R.
, and Perram
, G.
, 2016
, “Visible Emission From C2 and CN During cw Laser-Irradiated Graphite
,” Opt. Eng.
, 56
(1
), p. 011017
.9.
Fang
, X.
, Liu
, F.
, Xia
, B.
, Ou
, D.
, and Feng
, X.
, 2016
, “Formation Mechanisms of Characteristic Structures on the Surface of C/SiC Composites Subjected to Thermal Ablation
,” J. Eur. Ceram. Soc.
, 36
(3
), pp. 451
–456
.10.
Sakai
, T.
, Nakazawa
, H.
, Dantsuka
, Y.
, Ishida
, Y.
, Kitagawa
, K.
, and Hirai
, K.
, 2017
, “Dual-Component Sensor Design for In Situ Ablation Measurement
,” J. Thermophys. Heat Transf.
, 31
(2
), pp. 307
–317
.11.
Martin
, H. T.
, Cortopassi
, A. C.
, and Kuo
, K. K.
, 2017
, “Assessment of the Performance of Ablative Insulators Under Realistic Solid Rocket Motor Operating Conditions
,” Int. J. Energ. Mater. Chem. Prop.
, 16
(1
), pp. 1
–22
.12.
Su
, H.
, Fang
, X.
, Qu
, Z.
, Zhang
, C.
, Yan
, B.
, and Feng
, X.
, 2016
, “Synchronous Full-Field Measurement of Temperature and Deformation of C/SiC Composite Subjected to Flame Heating at High Temperature
,” Exp. Mech.
, 56
(4
), pp. 659
–671
.13.
Qu
, Z.
, Fang
, X.
, Su
, H.
, and Feng
, X.
, 2015
, “Measurements for Displacement and Deformation at High Temperature by Using Edge Detection of Digital Image
,” Appl. Opt.
, 54
(29
), pp. 8731
–8737
.14.
Fang
, X.
, Yu
, H.
, Zhang
, G.
, Su
, H.
, Tang
, H.
, and Feng
, X.
, 2014
, “In Situ Observation and Measurement of Composites Subjected to Extremely High Temperature
,” Rev. Sci. Instrum.
, 85
(3
), p. 035104
.15.
Gangireddy
, S.
, Karlsdottir
, S. N.
, Norton
, S.
, Tucker
, J.
, and Halloran
, J. W.
, 2010
, “In Situ Microscopy Observation of Liquid Flow, Zirconia Growth, and CO Bubble Formation During High Temperature Oxidation of Zirconium Diboride–Silicon Carbide
,” J. Eur. Ceram. Soc.
, 30
(11
), pp. 2365
–2374
.16.
Yin
, X.
, Cheng
, L.
, Zhang
, L.
, Xu
, Y.
, and Li
, J.
, 2001
, “Oxidation Behavior of 3D C/SiC Composites in Two Oxidizing Environments
,” Compos. Sci. Technol.
, 61
(7
), pp. 977
–980
.17.
Yin
, X.
, Cheng
, L.
, Zhang
, L.
, and Xu
, Y.
, 2003
, “Oxidation Behaviors of C/SiC in the Oxidizing Environments Containing Water Vapor
,” Mater. Sci. Eng. A
, 348
(1–2
), pp. 47
–53
.18.
Karlsdottir
, S. N.
, and Halloran
, J. W.
, 2008
, “Formation of Oxide Scales on Zirconium Diboride–Silicon Carbide Composites During Oxidation: Relation of Subscale Recession to Liquid Oxide Flow
,” J. Am. Ceram. Soc.
, 91
(11
), pp. 3652
–3658
.19.
Zhang
, X.
, Xu
, L.
, Du
, S.
, Han
, W.
, and Han
, J.
, 2008
, “Preoxidation and Crack-Healing Behavior of ZrB2-SiC Ceramic Composite
,” J. Am. Ceram. Soc.
, 91
(12
), pp. 4068
–4073
.20.
Fang
, X.
, Liu
, F.
, Lu
, B.
, and Feng
, X.
, 2015
, “Bio‐Inspired Microstructure Design to Improve Thermal Ablation and Oxidation Resistance: Experiment on SiC
,” J. Am. Ceram. Soc.
, 98
(12
), pp. 4010
–4015
.21.
Shi
, S.
, Gong
, C.
, Liang
, J.
, Fang
, G.
, Wen
, L.
, and Gu
, L.
, 2016
, “Ablation Mechanism and Properties of Silica Fiber-Reinforced Composite Upon Oxyacetylene Torch Exposure
,” J. Compos. Mater.
, 50
(27
), pp. 3853
–3862
.22.
Qu
, Z.
, Fang
, X.
, Hou
, G.
, Su
, H.
, Feng
, X.
, Li
, H.
, Takagi, K., and Fukuta, Y., 2017
, “Ceramic-Based Speckles and Enhanced Feature-Detecting Algorithm for Deformation Measurement at High Temperature
,” Exp. Mech.
, 57
(3
), pp. 377
–386
.23.
Fang
, X.
, Qu
, Z.
, Zhang
, C.
, and Feng
, X.
, 2017
, “In-Situ Testing of Surface Evolution of SiC During Thermal Ablation: Mechanisms of Formation, Flowing and Growth of Liquid Silica Beads
,” Ceram. Int.
, 43
(9
), pp. 7040
–7047
.24.
Hsieh
, C.-L.
, and Seader
, J. D.
, 1973
, “Similarity Analysis for the Surface Ablation of Silica-Reinforced Composites
,” J. Spacecr. Rockets.
, 10
(12
), pp. 797
–802
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