Newsletter | LinksSitemap

fluidyn-MP FSI - Fluid Structure Interaction





fluidyn-MP FSI (Fluid Structure Interaction) is a fluid mechanics software to simulate fluid structure coupling. It simultaneously calculates the mechanical stress and vibration phenomena in the structures and the flow in the fluids in contact.


fluidyn-MP FSI models the multi-physics interactions by an innovative method which includes the strong coupling of advanced solution techniques for each study domain : Finite Volumes (FV) for fluid flow calculations and Finite Elements (FE) for structures. For each of these solution techniques, several numerical schemes are available to adapt the software to the problem.


fluidyn-MP FSI offers a new technology of strong fluid structure coupling. The exchange of boundary conditions between the Finite Elements and the Finite Volumes domains is automatic. The fluid mesh is rebuilt automatically to follow the deformation of the fluid-structure interface.



  • Steady uncompressible to highly unsteady and strongly
  • Compressible (detonation, shock waves)
  • Multi species, multi phase flows (dispersed or free surface)
  • Various equations of state for thermodynamic properties
  • Various simple to highly evolutive turbulence models
  • Reactive flows with different reaction models
  • Radiation in semi-transparent media
  • Structured, unstructured, hybrid, non-conform, moving mesh.
  • Porous media (surface or volume porosities).



  • 3D complex structures in finite elements
  • Hexahedral, tetrahedral or thin plates, beams and springs elements.
  • Transient (implicit or explicit scheme) or static analysis.
  • Stress and deformations linked to heat load taken into account.
  • Laws of behaviour of elastic, elasto-plastic or piece wise linear materials and isotropic or orthotropic behaviour.
  • Laws of plastification and damage (Steinberg Guinan, Johnson–Cook) available.