2D_D(7)
NAME
- 2D_D -- -div 2D operator (
- D
SYNOPSIS
form (const space V, const space& V. "2D_D");
)
)
DESCRIPTION
- @tex Assembly the form as}ociated to the ${c the operator on the finite
element space $V$: $$ a({, 0 i j < 3 $$owhere $$ D_{ij}(u) = {1 }
t( { m {{artial
u_i} ight) $$ @end tex}x This form is usefull when considering elasticu_j} x} o
ity or Stokes problems. n
- e
EXAMPLE
- Here is an example of the vector-valued form:
- s
- geo omega ("square"); o
space V (omega, "P2", "vector");
form a (V, V, "2D_D");
- Note that a factor two is here applied to the form. This factor is
commonly used in practice.