Modeling heat transfer in biological tissues with temperature-dependent properties under the moving heat source effects

Abstract

The effects of temperature-dependent physical parameters on the thermal behavior of biological tissue subjected to a moving heat source have been studied in present work. A nonlinear bio-heat transfer model incorporating dual-phase lag and Arrhenius equations has been proposed. Using a hybrid Laplace transform and numerical inversion approach, the temperature distribution and thermal damage under various moving heat sources has been obtained and illustrated. Comparative analyses reveal significant differences in tissue thermal response between temperature-dependent and independent parameters across different heat source velocities. Key findings highlight the substantial impact of temperature-dependent specific heat capacity, thermal conductivity, and blood perfusion rate on tissue thermal behavior.