Fluid-Structure Interaction
Fluid-Structure Interaction (FSI) involves several phenomena where a solid structure and a fluid interact with each other. The interaction has three possible components, which can be more or less important:
•
The pressure and viscous forces in the fluid provides a load on the boundary of the solid. Usually, the pressure is dominant.
•
The deformation of the structure changes the geometry of the fluid domain.
•
The fluid sees the structure as a moving wall, which imposes a velocity at the interface.
You can model FSI with four different structural mechanics interfaces: Solid Mechanics, Multibody Dynamics, Shell, and Membrane. The fluid-flow can be modeled with any physics interface from the
Single-Phase Flow
and
Two-Phase Flow, Phase Field
groups.