Rheolef  7.2
an efficient C++ finite element environment
streamf_obstacle_slip_move.cc

The stream function for the obstacle benchmark with slip boundary condition.

The stream function for the obstacle benchmark with slip boundary condition

#include "rheolef.h"
using namespace rheolef;
using namespace std;
int main (int argc, char** argv) {
environment rheolef (argc, argv);
field uh;
din >> uh;
point e0 (1,0);
uh = lazy_interpolate (uh.get_space(), e0 - uh);
string approx = "P" + to_string(uh.get_space().degree());
const geo& omega = uh.get_geo();
space Ph (omega, approx);
Ph.block ("wall");
Ph.block ("axis");
Ph.block ("downstream");
field psi_h (Ph,0.);
trial psi (Ph);
test xi (Ph);
iopt.ignore_sys_coord = true;
form a = 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 field page for the full documentation
see the form page for the full documentation
see the geo page for the full documentation
see the point page for the full documentation
see the problem page for the full documentation
see the catchmark page for the full documentation
Definition: catchmark.h:67
see the environment page for the full documentation
Definition: environment.h:121
see the integrate_option page for the full documentation
see the space page for the full documentation
see the test page for the full documentation
see the test page for the full documentation
rheolef::details::is_vec dot
This file is part of Rheolef.
std::enable_if< details::has_field_rdof_interface< Expr >::value, details::field_expr_v2_nonlinear_terminal_field< typenameExpr::scalar_type, typenameExpr::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_variational_arg< Expr >::value, details::field_expr_v2_variational_curl< Expr > >::type bcurl(const Expr &expr)
field_basic< T, M > lazy_interpolate(const space_basic< T, M > &X2h, const field_basic< T, M > &u1h)
see the interpolate page for the full documentation
Definition: field.h:871
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:211
STL namespace.
rheolef - reference manual
int main(int argc, char **argv)
Definition: sphere.icc:25