Hydrodynamic Poroelasticity with Thermal Effects

TL;DR

This paper develops a linear hydrodynamic thermo-elasticity model for biological tissues, analyzing fluid-solid interactions and thermal effects, with a focus on short-time behavior and solution existence.

Contribution

It introduces a novel coupled system for biological tissue modeling, establishing solution existence and analyzing a simplified one-dimensional case.

Findings

Proved existence of a unique weak solution.

Derived semi-analytical solutions for the 1D model.

Explored the interplay of fluid flow, deformation, and heat transfer.

Abstract

This study proposes and explores a linear hydrodynamic thermo-elasticity system within mixture models, comprising fluid and solid phases, with a focus on biological tissues, particularly tumor-related phenomena. Although tumor growth is not yet incorporated, this work aims to comprehend 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, overcoming challenges posed by intricate coupling mechanisms within the 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 reduced for the short time scale to obtain the semi-analytical solution.