In this study, we developed a contact current–heat conduction coupled analysis code (hereinafter referred to as "electrical injury analysis") using the steady-state and transient analysis functions of ADVENTURE-Thermal, toward inverse estimation of electrical contact sites from observed burn locations. To apply boundary conditions, it was necessary to extract surface information from an anatomical numerical human model constructed with fine voxels. However, in the current numerical human models, there are locations at the skin-air interface where only point or edge contact exists, making surface extraction impossible. Therefore, we developed a code that modifies the model by adding voxels at such locations to ensure surface (face) contact. As a result, the number of added voxels remained within approximately 400, allowing boundary conditions to be freely assigned on the human body surface. We then conducted electrical injury analyses using ADVENTURE-Thermal on models in upright, seated postures. Compared to the upright model, the seated model showed higher current densities and temperature rises not only at the contact points but also around bent joint areas.
Nomura et al. (Wed,) studied this question.