Analysis of a Hydrodynamic Thermoelastic Mixture Model

Abstract

This study proposes and explores a hydrodynamic thermo-elasticity system within the context of mixture models, encompassing fluid and solid phases, with particular emphasis on biological tissues and tumor-related phenomena. While tumor growth dynamics are not explicitly modeled yet, this work examines the interaction between thermal effects and hydrodynamics on short-time scales where the tumor size typically remains stable. We establish the existence of a unique weak solution within the framework of implicit evolution equations where we exploit the intricate coupling mechanisms inherent to the PDE system. To further investigate the model, we then study the one-dimensional model and explore in detail the complex interplay between fluid flow, solid deformation, and heat transfer. This complex coupled system of equations is then reduced over a short time scale to obtain semi-analytical solutions.

Updated and reworked the analysis section,