Simulation of blood flow in the human abdominal aorta using the LBGK method

The Lattice Bhatnagar Gross and Krook (LBGK) method is widely used to solve fluid mechanical problems in engineering applications. In this work a brief introduction of the LBGK method is given and a new boundary condition is proposed for the cardiovascular domain. This enables the method to support elastic walls in two and three spatial dimensions for simulating blood flow in the abdominal aorta. The flow field is calculated in patient specific arbitrary geometries revealing characteristic flow patterns and geometrical changes of the arterial walls for different time dependent input contours of pressure and flow.