Rheolef  7.1
an efficient C++ finite element environment
stokes_contraction_bubble_old.cc
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1 #include "rheolef.h"
22 using namespace rheolef;
23 using namespace std;
24 #include "contraction.h"
25 int main(int argc, char**argv) {
26  environment rheolef (argc, argv);
27  geo omega (argv[1]);
28  space X1h = contraction::velocity_space (omega, "P1");
29  space Bh (omega, "bubble", "vector");
30  space Xh = X1h * Bh;
31  space Qh (omega, "P1");
32  trial u1 (X1h), ub (Bh), p (Qh);
33  test v1 (X1h), vb (Bh), q (Qh);
34  form a1 = integrate (2*ddot(D(u1),D(v1)));
35  form ab = integrate (2*ddot(D(ub),D(vb)));
36  form b1 = integrate (-div(u1)*q);
37  form bb = integrate (-div(ub)*q);
38  form a = {{a1, 0},
39  { 0, ab}};
40  form b = {b1, bb};
41  a.set_uu().set_symmetry(true);
42  field uh (Xh, 0), ph (Qh, 0);
43  uh[0] = contraction::velocity_field (X1h);
44  problem_mixed stokes (a, b);
45  stokes.solve (field(Xh,0), field(Qh,0), uh, ph);
46  dout << catchmark("inv_lambda") << 0 << endl
47  << catchmark("u") << uh[0]
48  << catchmark("ub") << uh[1]
49  << catchmark("p") << ph;
50 }
mkgeo_ball.ab
ab
Definition: mkgeo_ball.sh:175
rheolef::div
std::enable_if< details::is_field_convertible< Expr >::value,details::field_expr_v2_nonlinear_terminal_field< typename Expr::scalar_type,typename Expr::memory_type,details::differentiate_option::divergence >>::type div(const Expr &expr)
div(uh): see the expression page for the full documentation
Definition: field_expr_terminal.h:1031
contraction.h
The contraction geometry: boundary conditions.
form
see the form page for the full documentation
rheolef::catchmark
see the catchmark page for the full documentation
Definition: catchmark.h:67
field
see the field page for the full documentation
rheolef::field
field_basic< Float > field
see the field page for the full documentation
Definition: field.h:419
rheolef::integrate
std::enable_if< details::is_field_expr_v2_nonlinear_arg< Expr >::value &&! is_undeterminated< Result >::value, Result >::type integrate(const geo_basic< T, M > &omega, const Expr &expr, const integrate_option &iopt, Result dummy=Result())
see the integrate page for the full documentation
Definition: integrate.h:202
main
int main(int argc, char **argv)
Definition: stokes_contraction_bubble_old.cc:25
problem_mixed
see the problem_mixed page for the full documentation
space
see the space page for the full documentation
contraction::velocity_field
static field velocity_field(space Xh)
Definition: contraction.h:49
rheolef.h
rheolef - reference manual
p
Definition: sphere.icc:25
contraction::velocity_space
static space velocity_space(geo omega, string approx)
Definition: contraction.h:41
rheolef::ddot
T ddot(const tensor_basic< T > &a, const tensor_basic< T > &b)
ddot(x,y): see the expression page for the full documentation
Definition: tensor.cc:278
a
Definition: diffusion_isotropic.h:25
rheolef::environment
see the environment page for the full documentation
Definition: environment.h:115
rheolef
This file is part of Rheolef.
Definition: compiler_eigen.h:37
test
see the test page for the full documentation
rheolef::D
std::enable_if< details::is_field_convertible< Expr >::value,details::field_expr_v2_nonlinear_terminal_field< typename Expr::scalar_type,typename Expr::memory_type,details::differentiate_option::gradient >>::type D(const Expr &expr)
D(uh): see the expression page for the full documentation.
Definition: field_expr_terminal.h:969
mkgeo_ball.b
b
Definition: mkgeo_ball.sh:152
trial
see the test page for the full documentation
rheolef::dout
odiststream dout(cout)
see the diststream page for the full documentation
Definition: diststream.h:430
rheolef::std
Definition: vec_expr_v2.h:391
geo
see the geo page for the full documentation