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A Study on Surface Properties of Ablative Materials from 0.4MW Arc-Heated Wind Tunnel Test
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 Title & Authors
A Study on Surface Properties of Ablative Materials from 0.4MW Arc-Heated Wind Tunnel Test
Kim, Nam Jo; Oh, Philyong; Shin, Eui Sup;
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Ablative materials in a thermal protection system for atmospheric re-entry suffers from the most severe heat fluxes and temperatures, which induces surface recession in the thickness direction. In this paper, a 0.4MW arc-heated wind tunnel is operated to test for ablative materials, and a non-contact three-dimensional surface measuring system is used to evaluate the different surface characteristics of them. In particular, by postprocessing the three-dimensional image data, the surface roughness and recession of ablative materials can be calculated before and after the wind tunnel test. Moreover, the surface properties are analyzed quantitatively by comparing volume and mass losses of the test specimens.
0.4MW Arc-Heated Wind Tunnel;Ablation;3D Image Data;Surface Roughness;Surface Recession;
 Cited by
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