摘要：We present a general formulation for analysis of fluid flows with structural
interactions using the particle finite element method (PFEM). The fluids are
fully coupled to the structures that can undergo highly non-linear response due
to large deformations. The key feature of the PFEM is the use of an updated
Lagrangian description to model the motion of nodes(particles) in both the fluid
and the structure domains. A mesh connects the nodes defining the discretized
domains where the governing equations, expressed in an integral form are solved
as in the standard FEM. A fractional step scheme for the transient coupled
fluid-structure solution is described. Examples of application of the PFEM
method to solve a number of fluidstructure interaction problems including
free-fluid-surfaces, breaking waves and fluid particle separation may be easily
solved with this formulation are presented.
