RT info:eu-repo/semantics/conferenceObject T1 Mathematical Modeling of the Flash Method for Determing the Thermal Diffusivity of Construction Building Materials A1 Ouakarrouch, Mohamed A1 Garoum, Mohammed A1 Laaroussi, Najma A1 Lifi, Houda A1 Salmi, Houda A1 Lifi, Mohamed A1 Jraifi, Abdelilah K1 Thermal diffusivity K1 Flash method K1 Mathematical modeling K1 Heat transfer K1 Thermophysical properties K1 Calor-Conducción K1 Heat-Conduction K1 Modelos matemáticos K1 Mathematical models AB The choice of construction and thermal insulation materials relies primarily on their thermophysical properties, notably thermal conductivity (λ), specific heat capacity (cp), and thermal diffusivity (a). Accurate determination of these properties is essential for evaluating the thermal behavior of materials in buildings. Various experimental methods, classified according to the type of heat transfer regime (steady-state or transient), are used for this purpose. This study fits into this context by focusing on the mathematical modeling of the Flash method, in accordance with ASTM standard E1461-13. This method, which was designed and developed in our laboratory, allows for the determination of the thermal diffusivity a (m2/s) of materials under transient conditions. The developed mathematical model is based on the assumption of one-dimensional heat transfer, taking into account heat losses on both the front and rear faces of the sample being characterized. The shape of the thermal pulse generated by the apparatus was experimentally determined, and the recorded data were modeled using a script written in the Mathematica language. The characterization results will be presented and discussed. PB Springer SN 978-3-032-17079-8 YR 2026 FD 2026 LK https://hdl.handle.net/10259/11939 UL https://hdl.handle.net/10259/11939 LA eng NO Comunicación presentada en: The International Conference on Mathematics and Intelligent Systems in Industry (MISI'25), Safi, Morocco, July 9–10, 2025 DS Repositorio Institucional de la Universidad de Burgos RD 31-jul-2026