Heat Transfer in Composite Materials: Mechanism and Applications

This study presents a numerical approach for analyzing transient heat transfer in multi-layer composite insulation systems used in spacecraft and building applications. The model considers time-dependent temperature variation and heat conduction through different insulation layers with their respective thermal properties. A one-dimensional transient heat conduction equation is solved using the Finite Difference Method (FDM) to determine temperature distribution and heat flux over time. Boundary conditions representing convection and radiation are considered for different applications. The model helps analyze thermal lag and temperature changes across the insulation thickness under varying thermal conditions. MATLAB-based simulation is used to obtain temperature profiles and heat flux results. The proposed approach provides a simple numerical framework for studying the thermal performance of composite insulation systems and can support the design of efficient thermal protection for spacecraft and buildings.