Collection of constraints.
Dirichlet(u, ∂Ω, f) Dirichlet(u, ∂Ω, f, component)
Create a Dirichlet boundary condition on
u on the
∂Ω part of the boundary.
f is a function that takes two arguments,
x is the spatial coordinate and
t is the current time, and returns the prescribed value. For example, here we create a Dirichlet condition for the
:u field, on the faceset called
∂Ω and the value given by the
dbc = Dirichlet(:u, ∂Ω, (x, t) -> sin(t))
:u is a vector field we can specify which component the condition should be applied to by specifying
component can be given either as an integer, or as a vector, for example:
dbc = Dirichlet(:u, ∂Ω, (x, t) -> sin(t), 1) # applied to component 1 dbc = Dirichlet(:u, ∂Ω, (x, t) -> sin(t), [1, 3]) # applied to component 1 and 3
Dirichlet boundary conditions are added to a
ConstraintHandler which applies the condition via
Dirichlet boundary condition to the
Closes the dofhandler and creates degrees of freedom for each cell. Dofs are created in the following order: Go through each FieldHandler in the order they were added. For each field in the FieldHandler, create dofs for the cell. This means that dofs on a particular cell will be numbered according to the fields; first dofs for field 1, then field 2, etc.
Close and finalize the