Centre for Mathematical Modelling and Flow
Analysis
Glossary
Computational Fluid
Dynamics (CFD)
is the computer simulation of the behaviour of
fluids. Numerical approximations
are used to solve various subsets of the Navier-Stokes equations which
themselves describe the behaviour of a generalised fluid.
Computational Hydraulics
is the application of CFD to problems involving water
flow.
Cartesian Cut Cell
is a method of automatic boundary conforming mesh
generation. A Cartesian
mesh is laid over the computational domain and solid boundaries and
solid
internal objects are simply cut out of the mesh. This gives rise
to a mesh which contains a majority of ordinary Cartesian cells and a
small
number of polygonal 'cut' cells. Special treatment by the solver
is needed at cut cells. Mesh generation is computationally
efficient
which permits the simulation of moving bodies by re-meshing at each
time
step.
