Commit 430b87fc authored by Lukas Riedel's avatar Lukas Riedel

Update BC user docs

* Move contents behind abstract.
* Fix `horizontal_projection` key in Neumann boundary condition.
* Fix typos.
parent 7b9fb247
Boundary Conditions
===================
.. contents::
:depth: 3
Boundary conditions represent the *super-scale physics*, the forcing of the
(larger-scale) sourrounding system onto the simulated system.
After specifying the :doc:`boundary segmentation <man-grid>`, we are able to
......@@ -12,6 +9,9 @@ define the actual conditions applied at each segment. Like the
data file is a YAML_ file. Boundary segments are associated with their
boundary conditions by means of the segment indices.
.. contents::
:depth: 3
Boundary Condition File
-----------------------
......@@ -113,7 +113,7 @@ A boundary condition has the following template:
Precipitation and evapotranspiration fluxes are typically measured with
respect to a flat surface. For modeling these fluxes, the
``surface_adjust`` key is used, which scales the flux applied to the
``horizontal_projection`` key is used, which scales the flux applied to the
boundary with its inclination with respect to the direction of
gravitational force,
......@@ -127,10 +127,10 @@ A boundary condition has the following template:
* ``type``: ``Neumann``
* ``value``: Water flux in surface normal direction,
:math:`j_N`, in volume per area per second
:math:`\text{[m/s]} = \text{[]}` at the boundary. Fluxes into the domain
:math:`[\text{m]/\text{s}]` at the boundary. Fluxes into the domain
are negative, fluxes out of the domain positive.
* ``surface_adjust``: Boolean if the actual boundary flux should be scaled
with the surface inclination.
* ``horizontal_projection``: Boolean if the actual boundary flux should be
scaled with the surface inclination.
.. note:: Hydraulic conductivity decreases with water content. Evaporation
fluxes must not infinitely exceed the stable limit, or else the solver
......
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