( Heat transfer + convection to environment.
  Two-dimensional.
  The left two nodes keep temp. 0.
  The right two nodes convect to environmental temp. 1.
  Since the conductivity equals the convection coeff.,
  the temperature of the right two nodes should become 0.5 )

echo -no
number_of_space_dimensions 2
condif_temperature
end_initia

node 1  0 0
node 2  1 0
node 3  0 1
node 4  1 1
element 1 -quad4 1 2 3 4

geometry_line 1  0.0 0.0 0.0 1.0  0.01
geometry_line 2  1.0 0.0 1.0 1.0  0.01

bounda_unknown 0  -geometry_line 1 -temp
bounda_time    0  0.0 0.0 100. 0.

group_type 0  -condif
group_condif_density 0  1.0
group_condif_capacity 0  0.1
group_condif_conductivity 0  1.0

condif_convection 0  1. 1.
condif_convection_geometry 0  -geometry_line 2

print_filter 0  -node_dof -geometry_line 2 -temp

control_timestep  0  0.01 0.2
(control_print     0  -time_current -node_dof)

target_item  0  -node_dof 2 -temp
target_value 0  0.5 1.e-2

end_data
