ASPECT Newsletter #144

Hello everyone!

This is ASPECT newsletter #144.
It automatically reports recently merged features and discussions about the ASPECT mantle convection code.

Below you find a list of recently proposed or merged features:

#4471: Use stress averaging in tests where required (implemented by anne-glerum)
#4470: Add geometric average only viscosity operation (implemented by jdannberg; reviewed by gassmoeller)
#4469: use the hydrostatic pressure for thermodynamic lookup (implemented by jdannberg)
#4468: add steinberger cookbook (implemented by jdannberg)
#4467: Adds first publication of the year to the publication list (implemented by ljhwang)
#4465: Do not create unnecessary failing assembler for compressible Newton models with full A block preconditioner (implemented by gassmoeller)
#4464: fix periodic boundary conditions in compressible models (implemented by jdannberg; reviewed by gassmoeller)
#4463: removed name from contributors (implemented by bobmyhill; reviewed by gassmoeller)
#4462: use new “density” field type for density fields (implemented by jdannberg; reviewed by gassmoeller)
#4461: fix radial visc simple data file (implemented by jdannberg; reviewed by gassmoeller)
#4460: CMake: let’s not forget tests set up (implemented by tjhei; reviewed by bangerth)
#4459: add pressure- and temperature-dependent thermal conductivity (implemented by jdannberg)
#4456: Rework the gravity postprocessor (implemented by bangerth)
#4455: rename master to main inside repo (implemented by tjhei; reviewed by gassmoeller)
#4454: Matrix-free free surface stabilization (implemented by zjiaqi2018)
#4451: Allow steinberger model to be used with projected density (implemented by jdannberg; reviewed by gassmoeller)
#4450: Do not apply boundary conditions to projected density field (implemented by jdannberg; reviewed by gassmoeller)
#4434: Adjust max_visc and min_visc in the visco_plastic module to vectors of phases (implemented by lhy11009; reviewed by gassmoeller)
#4427: Replace FEValues by FEPointEvaluation where useful (implemented by gassmoeller; reviewed by anne-glerum)
#4422: fix Newton compressible terms. (implemented by MFraters; reviewed by gassmoeller)

And this is a list of recently opened or closed discussions:

#4466 GMG solver crashes in models with Material averaging = project to Q1 only viscosity and strong viscosity contrasts (opened)
#4458 Running cmake lets us forget about all tests currently set up (opened and closed)
#4457 Negative temperatures in 3D models (opened)
#4412 Wrong assert throw for radiogenic heating (closed)
#4388 Can one use the Newton solver with compositing material model? (closed)

A list of all major changes since the last release can be found at this website.

Thanks for being part of the community!

Let us know about questions, problems, bugs or just share your experience by visting our forum, or by opening issues or pull requests on Github.
Additional information can be found at our official website, and CIG’s ASPECT website.