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Experimental Research on Dynamic Erosion of EPDM Insulation Subjected to Particle-Laden Flow |
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| Authors: | XU Yi-hua HU Chun-bo ZHANG Sheng-min CHEN Jian |
| Affiliation: | XU Yi-hua1,2,HU Chun-bo1,ZHANG Sheng-min1,CHEN Jian1(1.National Key Laboratory of Combustion,Flow , Thermal-Structure,Northwestern Polytechnical University,Xi'an 710072 Shaanxi,China,2.Nanchang Hangkong University,Nanchang 330063 Jiangxi,China) |
| Abstract: | The instantaneous degradation of erosion surface of ethylene propylene diene monomer(EPDM)insulation subjected to the particle-laden flow in two operating conditions was measured by using a real-time X-ray radiography system.The images of its erosion state and dynamic ablation rate were obtained.And the charring-layer was analyzed by using SEM and energy spectrum.The experimental results indicate that the erosion rate of EPDM insulation layer impacted by low speed and low concentration particle flow is rela... |
| Keywords: | propulsion system of aviation & aerospace particle-laden flow EPDM dynamic ablation charring layer |
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