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http://dx.doi.org/10.5139/JKSAS.2018.46.9.735

Quantitative Analysis for Surface Recession of Ablative Materials Using High-speed Camera and 3D Profilometer  

Choi, Hwa Yeong (Department of Aerospace Engineering, Chonbuk National University)
Roh, Kyung Uk (Department of Aerospace Engineering, Chonbuk National University)
Cheon, Jae Hee (Department of Aerospace Engineering, Chonbuk National University)
Shin, Eui Sup (Department of Aerospace Engineering, Chonbuk National University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.46, no.9, 2018 , pp. 735-741 More about this Journal
Abstract
In this paper, the surface recession of ablative materials was quantitatively analyzed using a high-speed camera and a three-dimensional profilometer. The ablation tests of the graphite and carbon/phenolic composite samples were performed using a 0.4 MW arc-heated wind tunnel for simulating the atmospheric re-entry environment. The real-time images during the ablation test were captured by the high-speed camera, and analyzed to calculate the surface recession and recession rate. Also, the surface data of samples were obtained using a three-dimensional profilometer, and the surface recession was precisely calculated from the difference of height between the surface data before and after the test. It is effective to complement the two measurement results in the comprehensive analysis of surface recession phenomena.
Keywords
High-speed Camera; Three-dimensional Profilometer; Ablation; Surface Recession;
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