Time-accurate, parallel, multi-zone, multi-block solver to study the human cardio-vascular system.
A parallel, time-accurate flow solver is devised to study the human cardio-vascular system. The solver is capable of dealing with moving boundaries and moving grids. It is designed to handle complex, three-dimensional vascular systems. The computational domain is divided into multiple block subdomains. At each cross section the plane is divided into twelve sub-zones to allow flexibility for handling complex geometries and, if needed, appropriate parallel data partitioning. The unsteady, three-dimensional, incompressible Navier-Stokes equations are solved numerically. A second-order in time and third-order upwind finite volume method for solving time-accurate incompressible flows based on pseudo-compressibility and dual time-stepping technique is used. For parallel execution, the flow domain is partitioned. Communication between the subdomains of the flow on Riken's VPP/700E supercomputer is implemented using MPI message-passing library. A series of numerical simulations of biologically relevant flows is used to validate this code.
Tadjfar
Mehran
M
Advanced Computing Center, RIKEN, Saitama, Japan. mtadjfar@riken.go.jp
Himeno
Ryutaro
R
D001696:Biomechanical Phenomena; D019295:Computational Biology; D003198:Computer Simulation; D018056:Hemorheology; D006801:Humans; D008955:Models, Cardiovascular