30 int main(
int argc,
char**argv) {
33 string Pkd = (argc > 2) ? argv[2] :
"P1d",
34 Pld = (argc > 3) ? argv[3] : Pkd;
35 space Xh (omega, Pld),
36 Mh (omega[
"sides"], Pkd);
38 size_t k = Xh.degree(), l = Mh.degree(),
d = omega.dimension();
40 check_macro(l == k-1 || l == k || l == k+1,
41 "invalid (k,l) = ("<<k<<
","<<l<<
")");
42 space Xhs(omega,
"P"+to_string(k+1)+
"d"),
44 Mht(omega,
"trace_n(RT"+to_string(k)+
"d)");
45 space Yh = Xh*Xhs*Xh*Mht*Xhs*Zh*Xh*Mht*Zh;
48 auto u = x[0], us = x[1], ut = x[2], deltat = x[3], vs = x[4];
49 auto w = y[0], ws = y[1], wt = y[2], phit = y[3], ys = y[4];
50 auto zeta1 = x[5], vt = x[6], gammat = x[7], zeta2 = x[8];
51 auto xi1 = y[5], yt = y[6], kappat = y[7], xi2 = y[8];
58 + (us-
u)*xi1 + (ws-w)*zeta1 -
gamma*zeta1*xi1
59 + (us-ut)*yt + (ws-wt)*vt
60 + vs*xi2 + ys*zeta2 -
gamma*zeta2*xi2
65 + (
u+us-ut-deltat)*kappat
66 + (w+ws-wt-phit )*gammat);
74 s.set_symmetric_definite_positive();
77 p.solve (rhs, lambda_h);
78 field xh = inv_a*(
lh -
b.trans_mult(lambda_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 geo page for the full documentation
see the problem page for the full documentation
see the catchmark page for the full documentation
see the environment page for the full documentation
see the integrate_option page for the full documentation
double Float
see the Float page for the full documentation
odiststream dout(cout)
see the diststream 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
Tensor diffusion – isotropic case.
int main(int argc, char **argv)
This file is part of Rheolef.
details::field_expr_v2_nonlinear_terminal_function< details::h_local_pseudo_function< Float > > h_local()
h_local: see the expression page for the full documentation
csr< T, sequential > trans(const csr< T, sequential > &a)
trans(a): see the form page for the full documentation
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
std::enable_if< details::is_field_expr_v2_variational_arg< Expr >::value,details::field_expr_quadrature_on_sides< Expr > >::type on_local_sides(const Expr &expr)
on_local_sides(expr): 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
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 grad_h(const Expr &expr)
grad_h(uh): see the expression page for the full documentation
space_mult_list< T, M > pow(const space_basic< T, M > &X, size_t n)
details::field_expr_v2_nonlinear_terminal_function< details::normal_pseudo_function< Float > > normal()
normal: see the expression page for the full documentation
rheolef - reference manual
The sinus product function – right-hand-side and boundary condition for the Poisson problem.