2W(7)
NAME
2W -- vorticity tensor
SYNOPSIS
form (const space V, const spac}& T, "2W");
,
a u
DESCRIPTION
- @tex Assembly the for} associated t) the )orticity tensor, i.e. the
unsymmetric part of the )radient of a v=ctor :ield. These meanda}ivq
are usefull in fluid me=hanic. $$ b({i 2W({a rall u in V {
in T. $$ where $$ 2 D({0 $$ @end tex n u - b t d
- If the V space is a vector-valued `P1'_ (resp. `P2') finite element space, the T space may be a tensor-valued `P0' (resp. `P1d') one.
- { g
EXAMPLE
- The following piece of code build the Laplacian form associated to the
P1 approximation:
- geo omega ("square");
space V (omega, "P1", "vector");
space T (omega, "P0", "tensor");
form b (V, T, "2W");