Computational Physiological FSI
Simulating physiological flows using computational fluid dynamics (CFD) remains to be computationally expensive and difficult for clinical usage. We use reduced order models (ROM) of such systems with high nonlinearity and geometrical non-uniformity to replace the full, nonlinear system with a low degree of freedom ROM model. We construct ROM models by proper orthogonal decomposition (POD) method to estimate the flow-induced wall shear stress (WSS) and pressure loading of abdominal aortic aneurysms and bifurcation cerebral aneurysms. This method allows us to investigate a wide domain of different physiological flow parameters without conducting the computationally expensive CFD simulations repetitively, thus it is promising for clinical usage.