Testing Hcurl base, transfromed to Hdiv base in 2d using Green theorem.
Note 0: This is low-level implementation. Note 1: Generic implementation for Quad/Tri mesh of arbitrary order.
static char help[] =
"...\n\n";
if (nb_dofs == 0)
const int nb_gauss_pts = data.
getN().size1();
for (int gg = 0; gg != nb_gauss_pts; gg++) {
const double val = area * t_w;
for (int bb = 0; bb != nb_dofs; bb++) {
dIv += val * t_diff_base_fun(
i,
i);
++t_diff_base_fun;
}
++t_w;
}
}
};
if (nb_dofs == 0)
const int nb_gauss_pts = data.
getN().size1();
for (int gg = 0; gg != nb_gauss_pts; gg++) {
for (int bb = 0; bb != nb_dofs; bb++) {
fLux += t_w * t_normal(
i) * t_base_fun(
i);
++t_base_fun;
}
++t_w;
}
}
};
int main(
int argc,
char *argv[]) {
try {
moab::Core mb_instance;
moab::Interface &moab = mb_instance;
PetscBool flg_file = PETSC_TRUE;
255, &flg_file);
if (flg_file != PETSC_TRUE)
"*** ERROR -my_file (MESH FILE NEEDED)");
0, 2, bit_level0);
enum bases { AINSWORTH, DEMKOWICZ, LASBASETOP };
const char *list_bases[] = {"ainsworth", "demkowicz"};
PetscBool flg;
PetscInt choice_base_value = AINSWORTH;
LASBASETOP, &choice_base_value, &flg);
if (flg != PETSC_TRUE)
if (choice_base_value == AINSWORTH)
else if (choice_base_value == DEMKOWICZ)
for (
auto t : {MBEDGE, MBTRI, MBQUAD})
auto set_edge_elements_entities_on_mesh_skin = [&]() {
CHKERR moab.get_entities_by_dimension(0, 2, faces,
false);
CHKERR skin.find_skin(0, faces,
false, faces_skin);
};
CHKERR set_edge_elements_entities_on_mesh_skin();
auto rule = [&](
int,
int,
int p) {
return 2 *
p; };
auto calculate_divergence = [&]() {
double div = 0;
fe_face.getRuleHook = rule;
return div;
};
auto calculate_flux = [&]() {
double flux = 0;
fe_edge.getRuleHook = rule;
fe_edge.getOpPtrVector().push_back(
new OpFlux(flux));
return flux;
};
const double div = calculate_divergence();
const double flux = calculate_flux();
"Div = %4.3e Flux = %3.4e Error = %4.3e\n", div, flux,
div - flux);
constexpr double tol = 1e-8;
if (std::abs(div - flux) >
tol)
"Test failed (div != flux) %3.4e != %3.4e", div, flux);
}
}
#define MOFEM_LOG_C(channel, severity, format,...)
#define CATCH_ERRORS
Catch errors.
FieldApproximationBase
approximation base
@ AINSWORTH_LEGENDRE_BASE
Ainsworth Cole (Legendre) approx. base .
#define MoFEMFunctionReturnHot(a)
Last executable line of each PETSc function used for error handling. Replaces return()
@ HCURL
field with continuous tangents
#define MoFEMFunctionBegin
First executable line of each MoFEM function, used for error handling. Final line of MoFEM functions ...
@ MOFEM_ATOM_TEST_INVALID
#define MoFEMFunctionReturn(a)
Last executable line of each PETSc function used for error handling. Replaces return()
#define CHKERR
Inline error check.
virtual MoFEMErrorCode add_ents_to_finite_element_by_dim(const EntityHandle entities, const int dim, const std::string &name, const bool recursive=true)=0
add entities to finite element
virtual MoFEMErrorCode add_finite_element(const std::string &fe_name, enum MoFEMTypes bh=MF_EXCL, int verb=DEFAULT_VERBOSITY)=0
add finite element
virtual MoFEMErrorCode build_finite_elements(int verb=DEFAULT_VERBOSITY)=0
Build finite elements.
virtual MoFEMErrorCode modify_finite_element_add_field_col(const std::string &fe_name, const std::string name_row)=0
set field col which finite element use
virtual MoFEMErrorCode modify_finite_element_add_field_data(const std::string &fe_name, const std::string name_filed)=0
set finite element field data
virtual MoFEMErrorCode modify_finite_element_add_field_row(const std::string &fe_name, const std::string name_row)=0
set field row which finite element use
virtual MoFEMErrorCode build_fields(int verb=DEFAULT_VERBOSITY)=0
virtual MoFEMErrorCode add_ents_to_field_by_dim(const Range &ents, const int dim, const std::string &name, int verb=DEFAULT_VERBOSITY)=0
Add entities to field meshset.
virtual MoFEMErrorCode set_field_order(const EntityHandle meshset, const EntityType type, const std::string &name, const ApproximationOrder order, int verb=DEFAULT_VERBOSITY)=0
Set order approximation of the entities in the field.
#define MOFEM_LOG_CHANNEL(channel)
Set and reset channel.
virtual MoFEMErrorCode loop_finite_elements(const std::string problem_name, const std::string &fe_name, FEMethod &method, boost::shared_ptr< NumeredEntFiniteElement_multiIndex > fe_ptr=nullptr, MoFEMTypes bh=MF_EXIST, CacheTupleWeakPtr cache_ptr=CacheTupleSharedPtr(), int verb=DEFAULT_VERBOSITY)=0
Make a loop over finite elements.
MoFEMErrorCode partitionGhostDofs(const std::string name, int verb=VERBOSE)
determine ghost nodes
MoFEMErrorCode partitionSimpleProblem(const std::string name, int verb=VERBOSE)
partition problem dofs
MoFEMErrorCode buildProblem(const std::string name, const bool square_matrix, int verb=VERBOSE)
build problem data structures
MoFEMErrorCode partitionFiniteElements(const std::string name, bool part_from_moab=false, int low_proc=-1, int hi_proc=-1, int verb=VERBOSE)
partition finite elements
virtual MoFEMErrorCode add_problem(const std::string &name, enum MoFEMTypes bh=MF_EXCL, int verb=DEFAULT_VERBOSITY)=0
Add problem.
virtual MoFEMErrorCode modify_problem_ref_level_add_bit(const std::string &name_problem, const BitRefLevel &bit)=0
add ref level to problem
virtual MoFEMErrorCode modify_problem_add_finite_element(const std::string name_problem, const std::string &fe_name)=0
add finite element to problem, this add entities assigned to finite element to a particular problem
FTensor::Index< 'i', SPACE_DIM > i
FaceEle::UserDataOperator FaceEleOp
PetscErrorCode MoFEMErrorCode
MoFEM/PETSc error code.
std::bitset< BITREFLEVEL_SIZE > BitRefLevel
Bit structure attached to each entity identifying to what mesh entity is attached.
implementation of Data Operators for Forces and Sources
PetscErrorCode PetscOptionsGetInt(PetscOptions *, const char pre[], const char name[], PetscInt *ivalue, PetscBool *set)
PetscErrorCode PetscOptionsGetEList(PetscOptions *, const char pre[], const char name[], const char *const *list, PetscInt next, PetscInt *value, PetscBool *set)
PetscErrorCode PetscOptionsGetString(PetscOptions *, const char pre[], const char name[], char str[], size_t size, PetscBool *set)
constexpr double t
plate stiffness
Add operators pushing bases from local to physical configuration.
virtual moab::Interface & get_moab()=0
virtual MoFEMErrorCode build_adjacencies(const Range &ents, int verb=DEFAULT_VERBOSITY)=0
build adjacencies
virtual MoFEMErrorCode add_field(const std::string &name, const FieldSpace space, const FieldApproximationBase base, const FieldCoefficientsNumber nb_of_coefficients, const TagType tag_type=MB_TAG_SPARSE, const enum MoFEMTypes bh=MF_EXCL, int verb=DEFAULT_VERBOSITY)=0
Add field.
static MoFEMErrorCode Initialize(int *argc, char ***args, const char file[], const char help[])
Initializes the MoFEM database PETSc, MOAB and MPI.
static MoFEMErrorCode Finalize()
Checks for options to be called at the conclusion of the program.
Deprecated interface functions.
default operator for EDGE element
auto getFTensor1Normal()
get edge normal NOTE: it should be used only in 2D analysis
Data on single entity (This is passed as argument to DataOperator::doWork)
FTensor::Tensor2< FTensor::PackPtr< double *, Tensor_Dim0 *Tensor_Dim1 >, Tensor_Dim0, Tensor_Dim1 > getFTensor2DiffN(FieldApproximationBase base)
Get derivatives of base functions for Hdiv space.
MatrixDouble & getN(const FieldApproximationBase base)
get base functions this return matrix (nb. of rows is equal to nb. of Gauss pts, nb....
FTensor::Tensor1< FTensor::PackPtr< double *, Tensor_Dim >, Tensor_Dim > getFTensor1N(FieldApproximationBase base)
Get base functions for Hdiv/Hcurl spaces.
const VectorInt & getIndices() const
Get global indices of dofs on entity.
default operator for TRI element
auto getFTensor0IntegrationWeight()
Get integration weights.
double getMeasure() const
get measure of element
@ OPROW
operator doWork function is executed on FE rows
Problem manager is used to build and partition problems.
MoFEMErrorCode getInterface(IFACE *&iface) const
Get interface refernce to pointer of interface.
MoFEMErrorCode doWork(int side, EntityType type, EntitiesFieldData::EntData &data)
Operator for linear form, usually to calculate values on right hand side.
FTensor::Index< 'i', 3 > i
MoFEMErrorCode doWork(int side, EntityType type, EntitiesFieldData::EntData &data)
Operator for linear form, usually to calculate values on right hand side.