One treatment method for cerebral aneurysms is the Flow-diverter stent (FDS), and computational fluid dynamics (CFD) is used to evaluate its effectiveness. The challenge is to develop an advanced computational framework that can accurately analyze the deployment behavior of the FDS and the dynamic interaction between blood and blood vessels. In this study, we aimed to dynamically evaluate intravascular stent placement by proposing a framework that combines the Particle Finite Element Method-Second Generation (PFEM-2) and FEM-based fluid analysis techniques with FEM-based coupled analysis of blood and blood vessels, and by integrating the Discrete Element Method (DEM) with a finite element stent model. We also developed a modeling algorithm for PFEM-2–DEM coupled analysis. We developed an algorithm to derive an equation for determining the appropriate grid size for PFEM-2 based on DEM particle size and report the results of quantitatively evaluating drag accuracy based on the results of the analysis.
TANIGUCHI et al. (Wed,) studied this question.