高温下氧化对超高温陶瓷材料耦合传热的影响

来源 :第二届中国国际复合材料科技大会 (CCCM-2) | 被引量 : 0次 | 上传用户：psobb045

【摘要】

：

　　超高温陶瓷材料暴露于极端高温飞行环境中会导致其发生氧化，表面生成的氧化物具有不同的热物性从而对传热过程造成影响。针对预氧化的ZrB2和ZrB2-SiC材料，基于氧化模型预测

【作者】

：

周印佳孟松鹤解维华金华杜善义

【机构】

：

哈尔滨工业大学航天学院,哈尔滨150080

【出处】

：

第二届中国国际复合材料科技大会 (CCCM-2)

【发表日期】

：

2015年期

【关键词】

：

高温陶瓷材料预氧化耦合传热代表性体积单元高超声速流动高超声速流场模型预测极端高温

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论文部分内容阅读

　　超高温陶瓷材料暴露于极端高温飞行环境中会导致其发生氧化，表面生成的氧化物具有不同的热物性从而对传热过程造成影响。针对预氧化的ZrB2和ZrB2-SiC材料，基于氧化模型预测氧化层(ZrO2、B2O3、SiO2和SiC耗尽层)厚度，利用有限元建立圆柱形代表性体积单元，并与外部高超声速流场的CFD求解器相耦合，研究了氧化对超高温陶瓷材料的高超声速流动耦合传热的影响。

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高温下氧化对超高温陶瓷材料耦合传热的影响

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