New Features in Edge 4.1

A brief summary of the most important of the new developments in Edge, version 4.1, is given below.

Reorder
A new program "reorder" has been added to the preprocessor "reorder"
reorders nodes and edges in bedg files to improve performance of the
solver by improving data locality, thereby minimizing cache misses
in edge-based loops inside the solver.

The old reordering program "coloring" is still used for COLTYPE=2
(optimize for vector computers).

Solver
New updating method for velocity and pressure. Improves the
convergence rate and numerical stability in general and particularly
for high Mach number flows. Improvement is also made for upwind
scheme for momentum equations.

Aeroelastic calculations now run, this feature did not work in
version 4.0.

Viscous spectral radius modified to improve convergence in areas
with large viscosity.

Periodic boundaries treated differently in a more consistent way,
only convective fluxes added on these boundaries so far.

Isothermal walls now treated with a weak boundary conditions.

New turbulent DRSM models.

Many minor bug fixes