[CIG-MC] ASPECT 1.5.0 released

[Rene Gassmoeller]

We are pleased to announce the release of ASPECT 1.5.0. ASPECT is the 
Advanced
Solver for Problems in Earth's ConvecTion. It uses modern numerical 
methods such
as adaptive mesh refinement, multigrid, and a modular software design to
provide a fast, flexible, and extensible mantle convection solver. ASPECT is
available from

https://aspect.dealii.org/

and the release is available from

https://github.com/geodynamics/aspect/releases/tag/v1.5.0

This release includes the following changes:

- New: Choice between different formulations for the governing equations
   including Boussinesq and anelastic liquid approximation.
- New: Melt transport (two-phase flow).
- Particles: new generators, ghost exchange, performance improvements,
   interpolation to fields.
- New: Nondimensional material model for incompressible (using the 
Boussinesq
   approximation) and compressible computations (with ALA or TALA) for
   nondimensionalized problems. This can be used for benchmark problems like
   Blankenbach, King, etc..
- New: Optional DG method for temperature/composition.
- Adiabatic conditions: rework, now includes a reference density profile.
- Free surface: overhaul.
- New cookbooks: continental extension, finite strain, BurnMan interface,
   active tracers.
- New benchmarks: TanGurnis, Blankenbach, King.
- New: viscoplastic material model.
- Material model interface cleanup.
- Assembly performance improvements.
- New: memory statistics postprocessor.
- New: initial topography plugins.
- Many other fixes and small improvements.

A complete list of changes can be found at
https://aspect.dealii.org/doc/doxygen/changes_between_1_84_80_and_1_85_80.html
and the release is also available from
https://github.com/geodynamics/aspect/releases/tag/v1.5.0

Wolfgang Bangerth, Juliane Dannberg, Rene Gassmoeller, Timo Heister, and 
many
other contributors.

-- 
Rene Gassmoeller
http://www.math.colostate.edu/~gassmoel/