void
UZRectMollerup::upperboundary (const GeometryRect& geo,
const Soil& soil,
const ublas::vector<double>& T,
const Surface& surface,
std::vector<top_state>& state,
const ublas::vector<double>& remaining_water,
const ublas::vector<double>& h,
const ublas::vector<double>& Kedge,
ublas::vector<double>& dq,
ublas::banded_matrix<double>& Dm_mat,
ublas::vector<double>& Dm_vec,
ublas::vector<double>& Gm,
ublas::vector<double>& B,
const double ddt,
const int debug,
Treelog& msg, const double BIG_DT)
{
const std::vector<size_t>& edge_above = geo.cell_edges (Geometry::cell_above);
const size_t edge_above_size = edge_above.size ();
for (size_t i = 0; i < edge_above_size; i++)
{
const size_t edge = edge_above[i];
const int cell = geo.edge_other (edge, Geometry::cell_above);
daisy_assert (geo.cell_is_internal (cell));
const double in_sign
= geo.cell_is_internal (geo.edge_to (edge)) ? 1.0 : -1.0;
daisy_assert (in_sign < 0);
const double area = geo.edge_area (edge);
const double sin_angle = geo.edge_sin_angle (edge);
switch (surface.top_type (geo, edge))
{
case Surface::forced_flux:
{
const double flux = -surface.q_top (geo, edge, BIG_DT);
Neumann (edge, cell, area, in_sign, flux, dq, B);
}
break;
case Surface::forced_pressure:
{
const double value = -Kedge (edge) * geo.edge_area_per_length (edge);
const double pressure = surface.h_top (geo, edge);
Dirichlet (edge, cell, area, in_sign, sin_angle,
Kedge (edge),
h (cell), value, pressure, dq, Dm_mat, Dm_vec, Gm);
}
break;
case Surface::limited_water:
{
const double h_top = remaining_water (i);
// We pretend that the surface is particlaly saturated.
const double K_sat = soil.K (cell, 0.0, 0.0, T (cell));
const double K_cell = Kedge (edge);
const double K_edge = 0.5 * (K_cell + K_sat);
const double dz = geo.edge_length (edge);
daisy_assert (approximate (dz, -geo.cell_z (cell)));
double q_in_avail = h_top / ddt;
const double q_in_pot = K_edge * (h_top - h (cell) + dz) / dz;
// Decide type.
bool is_flux = h_top <= 0.0 || q_in_pot > q_in_avail;
if (is_flux)
{
state[i] = top_flux;
Neumann (edge, cell, area, in_sign, q_in_avail, dq, B);
}
else // Pressure
{
state[i] = top_pressure;
if (debug > 0 && q_in_pot < 0.0)
{
std::ostringstream tmp;
tmp << "q_in_pot = " << q_in_pot << ", q_avail = "
<< q_in_avail << ", h_top = " << h_top
<< ", h (cell) = " << h (cell)
<< " K (edge) = " << Kedge (edge)
<< ", K_sat = " << K_sat << ", K_edge = "
<< K_edge <<", dz = " << dz << ", ddt = " << ddt
<< ", is_flux = " << is_flux << "\n";
msg.message (tmp.str ());
}
const double value = -K_edge * geo.edge_area_per_length (edge);
const double pressure = h_top;
Dirichlet (edge, cell, area, in_sign, sin_angle,
K_edge, h (cell),
value, pressure, dq, Dm_mat, Dm_vec, Gm);
}
if (debug == 3)
{
std::ostringstream tmp;
tmp << "edge = " << edge << ", K_edge = " << K_edge
<< ", h_top = "
<< h_top << ", dz = " << dz << ", q_avail = " << q_in_avail
<< ", q_pot = " << q_in_pot << ", is_flux = " << is_flux;
msg.message (tmp.str ());
}
}
break;
case Surface::soil:
throw "Don't know how to handle this surface type";
default:
daisy_panic ("Unknown surface type");
}
}
}
void
UZRectMollerup::lowerboundary (const GeometryRect& geo,
const Groundwater& groundwater,
const std::vector<bool>& active_lysimeter,
const ublas::vector<double>& h,
const ublas::vector<double>& Kedge,
ublas::vector<double>& dq,
ublas::banded_matrix<double>& Dm_mat,
ublas::vector<double>& Dm_vec,
ublas::vector<double>& Gm,
ublas::vector<double>& B, Treelog& msg)
{
const std::vector<size_t>& edge_below = geo.cell_edges (Geometry::cell_below);
const size_t edge_below_size = edge_below.size ();
for (size_t i = 0; i < edge_below_size; i++)
{
const size_t edge = edge_below[i];
const int cell = geo.edge_other (edge, Geometry::cell_below);
daisy_assert (geo.cell_is_internal (cell));
const double in_sign
= geo.cell_is_internal (geo.edge_to (edge)) ? 1.0 : -1.0;
daisy_assert (in_sign > 0);
const double area = geo.edge_area (edge);
const double sin_angle = geo.edge_sin_angle (edge);
switch (groundwater.bottom_type ())
{
case Groundwater::free_drainage:
{
const double sin_angle = geo.edge_sin_angle (edge);
//const double flux = -in_sign * sin_angle * K (cell) * area; //old
const double flux = -in_sign * sin_angle * Kedge (edge);
Neumann (edge, cell, area, in_sign, flux, dq, B);
}
break;
case Groundwater::forced_flux:
{
const double flux = groundwater.q_bottom (edge);
Neumann (edge, cell, area, in_sign, flux, dq, B);
}
break;
case Groundwater::pressure:
{
const double value = -Kedge (edge) * geo.edge_area_per_length (edge);
const double pressure = groundwater.table () - geo.zplus (cell);
Dirichlet (edge, cell, area, in_sign, sin_angle,
Kedge (edge),
h (cell),
value, pressure,
dq, Dm_mat, Dm_vec, Gm);
}
break;
case Groundwater::lysimeter:
{
if (active_lysimeter[cell])
{
//Neumann - not so good
//const double flux = -in_sign * sin_angle * K (cell);
//Neumann (edge, cell, area, in_sign, flux, dq, B);
//Dirichlet - better
const double value = -Kedge (edge) * geo.edge_area_per_length (edge);
const double pressure = 0.0;
Dirichlet (edge, cell, area, in_sign, sin_angle,
Kedge (edge),
h (cell),
value, pressure, dq, Dm_mat, Dm_vec, Gm);
}
else
// Indsat af [email protected] Fri Jul 10 11:21:14 2009
{
const double flux = 0.0;
Neumann (edge, cell, area, in_sign, flux, dq, B);
}
}
break;
default:
daisy_panic ("Unknown groundwater type");
}
}
}