FLOW-3D News
Fall 2003
Increment:
What's New in Version 8.2
In the beginning there is the User Interface. Now the
beginning is easier with a new graphic capability to interactively create
and modify geometry and meshing for single and multi-block grids. Converting
geometry into a form suitable for the FLOW-3D solver
has also been significantly improved with enhancements in the routines that interpret
stereolithography (STL) and Topographic data files. If your end is to impose
STL defined geometry onto a cylindrical grid, then that can also be done.
The list of physical models available in FLOW-3D has
been stretched with the addition of an elastic-visco-plastic stress model. Using
an incremental stress-strain approach, large deformation elastic stresses can
be computed in a material up to a yield stress after which the material behaves
as a viscous liquid.
Another moving addition consists of an electro-osmosis model for simulating the
flow of fluids in micro-scale valves, pumps, and mixers. A hot new area is the
growing of hot-spots into large, dynamic vapor bubbles. Models supporting
this process, as well as general boiling and condensation, have been considerably
improved.
Accurate communication is a problem in any language. New cell phone technology
is helping to increase communication, although not necessarily accuracy. On
the other hand FLOW-3D's, new interpolation scheme
has increased the accuracy of cell communication between mesh blocks in a FLOW-3D grid. Multi-block
computations exhibit improved stability, accuracy, and convergence properties
over previous code versions. Tracking the roaming of free surfaces and two-fluid
interfaces over grid cells has also been enhanced with the development of TruVOF,
an improved method to evolve sharp interfaces in grids. With these advances
it’s easy to see that FLOW-3D is ringing
with increased value.
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