Kilian Weishaupt authored Mar 19, 2021 and Timo Koch committed Mar 22, 2021

Having the variables being reset after Dirichlet actually caused a bug
fixed in !2240. This cleans up the order of things to make the code
better readable.

[multidomain][fvassembler] Change variable warningIssued from a local static variable to a private class member for compatabilit with gcc7 compiler.

Bernd Flemisch authored Dec 03, 2020 and Timo Koch committed Dec 03, 2020

Use the vector helper in both cases. Emit a warning if the norm calculation
is used for the box method and an overlapping decompisition.

Bernd Flemisch authored Nov 10, 2020 and Dennis Gläser committed Nov 11, 2020

Handle ghost elements in the subdomain local assemblers in the same
way as they are treated in the single-domain case.

Coupling methox from Koch et al 2020 JCP (https://doi.org/10.1016/j.jcp.2020.109370)

[md][embedded][surface] Add choice between average operator and point evaluation and integrate over intersections instead of elements

If segments intersect the boundary of the 3d domain not all of the surface of the tubular inclusion
will couple with the 3d domain. The surface factor accounts for the reduction in surface area for
cylinder surfaces that are partly inside partly outside the 3d domain. This measure has proven
to slightly reduce the difference at boundaries between different coupling schemes.

Fix compiler warning related to implicit conversion

This makes sure, given some ratio that the resulting number of samples
is between 1 and the largest representable std::size_t.

The given ratio is clamped to the interval (0,1] if it's outside that range.

The enums provide a convenient way to select the type of 1d3d coupling mode.
However they are not extensible. Adding a new mode requires changing Dumux core code.
With the new comparable and named tags, we have the same features but in
an extensible way. Every coupling manager implementation can define their own
(unique) tag and specialize the common class with this tag. The coupling mode
can be queried as before, and it is still easy to write code that works
with several coupling modes.

This commit also puts all coupling mode specializations in their own headers.

* Add missing header