Review of the thermal analysis of ceramic matrix composites and cooling structures for aeroengine applications

Fiber-reinforced ceramic matrix composites (CMC) are pivotal for advancing aero-engine technology due to their superior thermal and mechanical properties, including high-temperature resistance, corrosion resistance, low weight, and high strength. However, the thermal analysis of CMC components is complicated due to its anisotropic thermal conductivity arising from their braided structure. This paper reviews the progress in thermal analysis methods and cooling structure research for CMC in aero-engine applications. The establishment of representative volume elements by microscopic methods has become the research direction for exploring the thermal conductivity characteristics of CMC. The anisotropic homogenization method considering the variation of thermal conductivity direction has improved the simulation accuracy of CMC components. Further research is needed to achieve the cooling design of CMC components that comprehensively considers both thermal conductivity and cooling structure. By summarizing the current research and existing challenges, the future research directions for ceramic-based high-temperature components are proposed.