空气动力学学报2025，Vol.43Issue(7)：63-72,10.DOI:10.7638/kqdlxxb-2025.0094
轻质针刺石英纤维/酚醛树脂复合材料体积辐射-烧蚀热响应模型及分析
Volume-radiation-ablation thermal response model and analysis of lightweight needled quartz fiber/phenolic resin composite
摘要
Abstract
During planetary entry and Earth return missions,spacecraft surfaces experience significant thermal radiation effects due to high-enthalpy and high-velocity gases.Unlike conductive heat transfer,the volume radiation effect depends critically on the radiative properties of thermal protection materials.The lightweight needled quartz fiber/phenolic resin composite demonstrates favorable characteristics for radiative heat transfer due to its high porosity and semitransparent medium properties.This study developed an improved thermal response model by incorporating volume radiative transfer equations into conventional ablation models.Comparative analyses with experimental data demonstrated that the proposed volume-radiation-ablation model achieved superior prediction accuracy compared to traditional approaches.The results revealed that composites with higher absorption and scattering coefficients exhibited enhanced thermal insulation performance.Under high-radiation heating conditions,accelerated pyrolysis of phenolic resin occurred within the material,accompanied by increased internal pyrolysis gas pressure.Conversely,high convective heating conditions primarily increased the surface ablation recession rate.These findings provide valuable insights for engineering applications of lightweight needled quartz fiber/phenolic resin composites in thermal protection systems for deep space exploration vehicles.关键词
热防护材料/石英纤维/酚醛树脂/烧蚀试验/体积辐射效应/数值模拟Key words
thermal protection system/quartz fiber/phenolic resin/ablation tests/volume radiation effect/numerical simulation分类
航空航天引用本文复制引用
闫晓杰,洪长青,金翔宇..轻质针刺石英纤维/酚醛树脂复合材料体积辐射-烧蚀热响应模型及分析[J].空气动力学学报,2025,43(7):63-72,10.基金项目
国家自然科学基金(51872066,52032003,U20B2017) （51872066,52032003,U20B2017）
