Dear Daniel,
Thank you a lot for the hint, makes perfect sense! The
MatrixTools::apply_boundary_values works well now! But I believe i also
need to adjust the VectorTools::interpolate_boundary_values accordingly.
Right now i have defined a template for pressure component boundary values:
template <int dim>
class PressureBoundaryValues : public Function<dim>
{
public:
virtual std::complex<double> value(const Point<dim> &p,
const
unsigned int component = 1) const override; //component 1 for the pressure
block in vector-valued problem
}
template <int dim>
std::complex<double> PressureBoundaryValues<dim>::value(const Point<dim> &p,
const unsigned int /*component*/) const
{
const std::complex<double> i = {0,1};
return i;
}
And later I am using:
VectorTools::interpolate_boundary_values(dof_handler,
1,
PressureBoundaryValues<dim>(),
boundary_values,
fe.component_mask(pressures));
The compiler complains with: 'error: no matching function for call to
‘interpolate_boundary_values(dealii::DoFHandler<3, 3>&, int,
Poroacoustics::PressureBoundaryValues<3>, std::map<unsigned int,
std::complex<double> >&, dealii::ComponentMask)’.
Could you please give me a hand on this issue as well? Thank you a lot!
Kind regards,
Mariia
вторник, 14 сентября 2021 г. в 16:33:44 UTC+2, d.arnd...@gmail.com:
> Mariia,
>
> You need to make sure that the std::map also uses values of type
> std::complex<double>. The compile error you shared shows that you use
> doubles.
>
> Best,
> Daniel
>
> Am Di., 14. Sept. 2021 um 07:30 Uhr schrieb Мария Бронзова <
> masia...@gmail.com>:
>
>> Hi everyone,
>>
>> I ran into the following difficulty: I have a vector-valued problem with
>> complex numbers as entries for my BlockSparseMatrix system_matrix and
>> BlockVector system_rhs and solution vectors and I am trying to apply
>> Dirichlet boundary conditions, using the
>> MatrixTools::apply_boundary_values(boundary_values, system_matrix,
>> solution, system_rhs) function.
>>
>> The compiler is complaining, indicating the error: no matching function
>> for call to ‘apply_boundary_values(std::map<unsigned int, double>&,
>> dealii::BlockSparseMatrix<std::complex<double> >&,
>> dealii::BlockVector<std::complex<double> >&,
>> dealii::BlockVector<std::complex<double> >&)’.
>>
>> Is it not possible to use the function for complex-values systems?
>>
>> Thank you!
>>
>> Kind regards,
>> Mariia
>>
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