28 size_t& max_iter,
Float& tol, odiststream *p_derr=0) {
29 const space& Xh = uh.get_space();
30 const space& Qh = ph.get_space();
31 string label =
"navier-stokes-" + Xh.get_geo().name();
32 integrate_option iopt;
33 iopt.set_family(integrate_option::gauss_lobatto);
34 iopt.set_order(Xh.degree());
41 if (p_derr != 0) *p_derr <<
"[" << label <<
"] #n |du/dt|" << endl;
43 for (
size_t n = 0;
true;
n++) {
46 field uh_star = 2.0*uh1 - uh2;
51 field lh = l0h + (Re/delta_t)*(2*l1h - 0.5*l2h);
52 stokes.solve (
lh,
field(Qh,0), uh, ph);
53 field duh_dt = (3*uh - 4*uh1 + uh2)/(2*delta_t);
54 Float residual = sqrt(
m(duh_dt,duh_dt));
55 if (p_derr != 0) *p_derr <<
"[" << label <<
"] "<<
n <<
" " << residual << endl;
61 if (
n == max_iter-1) {
field lh(Float epsilon, Float t, const test &v)
see the Float page for the full documentation
see the characteristic page for the full documentation
see the field page for the full documentation
see the problem_mixed 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
class rheolef::details::field_expr_v2_nonlinear_node_unary compose
rheolef::details::is_vec dot
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
std::enable_if< details::has_field_rdof_interface< 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.
std::enable_if< details::has_field_rdof_interface< 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
T ddot(const tensor_basic< T > &a, const tensor_basic< T > &b)
ddot(x,y): see the expression page for the full documentation
int navier_stokes_solve(Float Re, Float delta_t, field l0h, field &uh, field &ph, size_t &max_iter, Float &tol, odiststream *p_derr=0)