| 多相流环境下绝热材料烧蚀试验方法研究 |
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| 引用本文： | 王金金,查柏林,张炜,张艳.多相流环境下绝热材料烧蚀试验方法研究[J].宇航学报,2019,40(3):362-368. |
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| 作者姓名： | 王金金 查柏林 张炜 张艳 |
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| 作者单位： | 1. 火箭军工程大学，西安 710025；2. 西安近代化学研究所，西安 710065 |
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| 摘 要： | 为深入了解高温多相流环境中绝热材料烧蚀规律，以氧-煤油烧蚀试验系统为基础，采用氧化硼(B2O3)粉末为添加粒子，发展了一种用于绝热材料烧蚀性能测试的新方法，并进行了验证测试。结果表明：氧-煤油烧蚀试验系统的温度为500~2700 K，射流速度为200~1500 m/s，可通过调整燃烧室压力、烧蚀距离和粒子浓度等参数适应各种烧蚀工况；B2O3颗粒在高温射流中发生熔化、蒸发等相变，可用于模拟火箭发动机中的凝聚相粒子；验证试验中绝热材料的烧蚀率和烧蚀规律与其他多相流烧蚀试验结果相近。结果证明该装置可用于开展多相流环境下绝热材料烧蚀试验研究。
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| 关 键 词： | 多相流 烧蚀方法 氧化硼(B2O3)粒子 硅橡胶绝热材料 粒子侵蚀 |
| 收稿时间： | 2018-09-14 |
Experimental Method Research on Ablation Characteristics of Thermal Insulation Material Under Multi Phase Flow Condition |
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| WANG Jin jin,ZHA Bai lin,ZHANG Wei,ZHANG Yan.Experimental Method Research on Ablation Characteristics of Thermal Insulation Material Under Multi Phase Flow Condition[J].Journal of Astronautics,2019,40(3):362-368. |
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| Authors: | WANG Jin jin ZHA Bai lin ZHANG Wei ZHANG Yan |
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| Affiliation: | 1. Rocket Force University of Engineering, Xi’an 710025, China; 2. Xi’an Modern Chemistry Research Institute, Xi’an 710065, China |
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| Abstract: | In order to thoroughly understand the ablation regulation of the thermal insulation materials under the high temperature and multi-phase flow environment, a new method is developed and tested by using the boron oxide (B2O3) powder as the adding particles based on the oxygen-kerosene ablation test system. The results show that the ablation temperature of the oxygen kerosene ablation test system ranges from 500 to 2700 K and the jet velocity range is 200~1500 m/s. The system can adapt to various ablation conditions by adjusting the parameters such as combustion chamber pressure, ablation distance and particle concentration and so on. Because of the melting and evaporation of the B2O3 particles in the jet with high temperature, B2O3 particles can be used to simulate the condensed phase particles in rocket engines. The ablation rate and regulation of the thermal insulation materials in verification test are similar to the ablation results of other multi-phase ablation equipment. The results prove that the device can be used to investigate the ablating resistance properties of the thermal insulation materials in the multi-phase flow environment. |
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| Keywords: | Multi-phase flow Ablation method Boron oxide (B2O3) particles Silicone rubber thermal insulation material Erosion |
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