Steady state boundary conditions

class bcs.SteadyBC(type=2, head=10.0, flow=0.0, cond=0.0)

Bases: object

Boundary condition for steady state groundwater flow.

The boundary condition can be type 1, 2 or 3 (see ‘type’ attribute). An exception occurs if any other value is specified for type. The default SteadyBC object is a type 2 boundary condition with flow=0.0, which is equivalent to a no-flow boundary. The default type 1 Boundary has head=10.0 (same as the default head of all Aquifer classes). The default type 3 boundary condition has head=10.0 and cond=0.0, which is equivalent to a no-flow condition.

Note, a utilities function is available to calculate conductance values.

Attributes:

type (int)Boundary condition type; choices are type=1 (Dirichlet,

first-type or constant head), type=2 (Neumann, second-type or constant flow) or type=3 (Cauchy or general head).

head (float) : Value of head at the boundary for type 1 and value of external head for type 2 (units L, default 10.0). flow (float) : value of normal flow at boundary for type 2 (units L/T,

default 0.0).

cond (float) : Value of conductance for type 3 (units L2/T, default 0.0).

info()

Print the solution information.

property type

int : Boundary condition type.

Setter method checks for valid values and triggers an exception if invalid values are specified.

property value

dic : Boundary condition value(s).