Two-Dimensional Domain of General Shape

Two-Dimensional Computation domain of General Shape can be formed using one or more Surfaces that can touch each other, but can not overlap. All surfaces must lie in the same plane. Surfaces can contain openings, internal points or internal curves. It is also possible to create an opening in a surface and then enter another surface into it.

Division of the transport domain into individual surfaces enables easier work with it, since the program creates for each surface its own section and users can then specify different domain properties and initial and boundary conditions on these sections.

In future versions of HYDRUS we plan to implement specifications of domain properties (e.g., materials), boundary and initial conditions directly on geometric objects (e.g., surfaces and boundary curves) and thus independent of the finite element discretization. This will allow generation of new FE-Mesh (e.g., its refinement) without the lost of entered input data. Such specification of domain and boundary properties should also be more exact.