Section: New Software and Platforms

NaSCar

Navier-Stokes Cartesian

Keywords: HPC - Numerical analyse - Fluid mechanics - Langage C - PETSc

Scientific Description: NaSCar can be used to simulate both hydrodynamic bio-locomotion as fish like swimming and aerodynamic flows such wake generated by a wind turbine.

Functional Description: This code is devoted to solve 3D-flows in around moving and deformable bodies. The incompressible Navier-Stokes equations are solved on fixed grids, and the bodies are taken into account thanks to penalization and/or immersed boundary methods. The interface between the fluid and the bodies is tracked with a level set function or in a Lagrangian way. The numerical code is fully second order (time and space). The numerical method is based on projection schemes of Chorin-Temam's type. The code is written in C language and use Petsc library for the resolution of large linear systems in parallel.

NaSCar can be used to simulate both hydrodynamic bio-locomotion as fish like swimming and aerodynamic flows such wake generated by a wind turbine.

• Participant: Michel Bergmann

• Partner: Université de Bordeaux

• Contact: Michel Bergmann

• URL: https://gforge.inria.fr/projects/nascar/