Rheolef  7.1
an efficient C++ finite element environment
streamf_contraction.cc

The stream function for the contraction benchmark

#include "rheolef.h"
using namespace rheolef;
using namespace std;
#include "contraction.h"
int main (int argc, char** argv) {
environment rheolef (argc, argv);
field uh;
din >> uh;
const geo& omega = uh.get_geo();
size_t d = omega.dimension();
Float c = omega.xmax()[1];
string approx = "P" + itos(uh.get_space().degree());
space Ph = contraction::streamf_space (omega, approx);
integrate_option iopt;
iopt.ignore_sys_coord = true;
const space& Xh = uh.get_space();
trial psi (Ph), u (Xh);
test xi (Ph), v (Xh);
form a = (d == 3) ? integrate (ddot(grad(psi), grad(xi)))
: integrate ( dot(grad(psi), grad(xi)), iopt);
field lh = integrate (dot(uh,bcurl(xi)));
problem p (a);
p.solve (lh, psi_h);
dout << catchmark("psi") << psi_h;
}
field lh(Float epsilon, Float t, const test &v)
see the Float page for the full documentation
see the field page for the full documentation
see the form page for the full documentation
see the geo page for the full documentation
see the problem page for the full documentation
idiststream din
see the diststream page for the full documentation
Definition: diststream.h:427
odiststream dout(cout)
see the diststream page for the full documentation
Definition: diststream.h:430
see the space page for the full documentation
see the test page for the full documentation
see the test page for the full documentation
The contraction geometry: boundary conditions.
This file is part of Rheolef.
rheolef::std enable_if ::type dot const Expr1 expr1, const Expr2 expr2 dot(const Expr1 &expr1, const Expr2 &expr2)
dot(x,y): see the expression page for the full documentation
Definition: vec_expr_v2.h:415
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 grad(const Expr &expr)
grad(uh): see the expression page for the full documentation
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
std::string itos(std::string::size_type i)
itos: see the rheostream page for the full documentation
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
std::enable_if< details::is_field_expr_v2_variational_arg< Expr >::value,details::field_expr_v2_variational_curl< Expr >>::type bcurl(const Expr &expr)
rheolef - reference manual
int main(int argc, char **argv)
static field streamf_field(space Ph)
Definition: contraction.h:75
static space streamf_space(geo omega, string approx)
Definition: contraction.h:57
Definition: sphere.icc:25
Float u(const point &x)