F313 高温衝撃風洞による再突入空力加熱に対する触媒効果の研究

概要

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Surface catalytic effect on aerodynamic heating was studied using blunt nosed flat plates with various surface coatings. SiO2,which is widely used for thermal protection system of re-entry vehicles, was selected as target material. Silver, which has high catalytic efficiency was selected as reference material. Model was tested in the high enthalpy shock tunnel (HIEST). Nozzle stagnation enthalpy of 14MJ/kg was used for test condition to obtain high oxygen atom dissociation rate. CFD analysis to the experimental conditions shows that almost all oxygen molecules are dissociated on the model surface for non-catalytic wall assumption. Surface temperature of the model was controlled using heaters installed in the model. Dependency of catalytic effect on surface temperature and pressure were studied.
日本流体力学会の論文
2002-07-23