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…tutive-laws [PfemFluid] Add constitutive laws
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...amicsApplication/custom_constitutive/fluid_laws/barker_bercovier_mu_I_rheology_3D_law.cpp
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//------------------------------------------------------------- | ||
// ___ __ ___ _ _ _ | ||
// KRATOS| _ \/ _|___ _ __ | __| |_ _(_)__| | | ||
// | _/ _/ -_) ' \| _|| | || | / _` | | ||
// |_| |_| \___|_|_|_|_| |_|\_,_|_\__,_|DYNAMICS | ||
// | ||
// BSD License: PfemFluidDynamicsApplication/license.txt | ||
// | ||
// Main authors: Alessandro Franci | ||
// Collaborators: Massimiliano Zecchetto | ||
// | ||
//------------------------------------------------------------- | ||
// | ||
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// System includes | ||
#include <iostream> | ||
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// External includes | ||
#include <cmath> | ||
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// Project includes | ||
#include "custom_constitutive/fluid_laws/barker_bercovier_mu_I_rheology_3D_law.h" | ||
#include "includes/checks.h" | ||
#include "includes/properties.h" | ||
#include "pfem_fluid_dynamics_application_variables.h" | ||
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namespace Kratos { | ||
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//********************************CONSTRUCTOR********************************* | ||
//**************************************************************************** | ||
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BarkerBercovierMuIRheology3DLaw::BarkerBercovierMuIRheology3DLaw() : PfemFluidConstitutiveLaw() {} | ||
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//******************************COPY CONSTRUCTOR****************************** | ||
//**************************************************************************** | ||
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BarkerBercovierMuIRheology3DLaw::BarkerBercovierMuIRheology3DLaw(const BarkerBercovierMuIRheology3DLaw& rOther) | ||
: PfemFluidConstitutiveLaw(rOther) {} | ||
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//***********************************CLONE************************************ | ||
//**************************************************************************** | ||
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ConstitutiveLaw::Pointer BarkerBercovierMuIRheology3DLaw::Clone() const { | ||
return Kratos::make_shared<BarkerBercovierMuIRheology3DLaw>(*this); | ||
} | ||
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//*********************************DESTRUCTOR********************************* | ||
//**************************************************************************** | ||
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BarkerBercovierMuIRheology3DLaw::~BarkerBercovierMuIRheology3DLaw() {} | ||
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ConstitutiveLaw::SizeType BarkerBercovierMuIRheology3DLaw::WorkingSpaceDimension() { return 3; } | ||
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ConstitutiveLaw::SizeType BarkerBercovierMuIRheology3DLaw::GetStrainSize() { return 6; } | ||
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void BarkerBercovierMuIRheology3DLaw::CalculateMaterialResponseCauchy(Parameters& rValues) { | ||
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Flags& r_options = rValues.GetOptions(); | ||
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const Properties& r_properties = rValues.GetMaterialProperties(); | ||
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Vector& r_strain_vector = rValues.GetStrainVector(); | ||
Vector& r_stress_vector = rValues.GetStressVector(); | ||
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const double static_friction = r_properties[STATIC_FRICTION]; | ||
const double dynamic_friction = r_properties[DYNAMIC_FRICTION]; | ||
const double delta_friction = dynamic_friction - static_friction; | ||
const double inertial_number_zero = r_properties[INERTIAL_NUMBER_ZERO]; | ||
const double grain_diameter = r_properties[GRAIN_DIAMETER]; | ||
const double grain_density = r_properties[GRAIN_DENSITY]; | ||
const double regularization_coeff = r_properties[REGULARIZATION_COEFFICIENT]; | ||
const double inertial_number_one = r_properties[INERTIAL_NUMBER_ONE]; | ||
const double infinite_friction_coeff = r_properties[INFINITE_FRICTION]; | ||
const double alpha_parameter = r_properties[ALPHA_PARAMETER]; | ||
double inertial_number = 0; | ||
double effective_dynamic_viscosity = 0; | ||
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const double old_pressure = this->CalculateInGaussPoint(PRESSURE, rValues, 1); | ||
const double new_pressure = this->CalculateInGaussPoint(PRESSURE, rValues, 0); | ||
const GeometryType& r_geometry = rValues.GetElementGeometry(); | ||
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const double theta_momentum = r_geometry[0].GetValue(THETA_MOMENTUM); | ||
double mean_pressure = (1.0 - theta_momentum) * old_pressure + theta_momentum * new_pressure; | ||
if (mean_pressure > 0.0) { | ||
mean_pressure = 0.0000001; | ||
} | ||
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const double equivalent_strain_rate = | ||
std::sqrt(2.0 * r_strain_vector[0] * r_strain_vector[0] + 2.0 * r_strain_vector[1] * r_strain_vector[1] + | ||
2.0 * r_strain_vector[2] * r_strain_vector[2] + 4.0 * r_strain_vector[3] * r_strain_vector[3] + | ||
4.0 * r_strain_vector[4] * r_strain_vector[4] + 4.0 * r_strain_vector[5] * r_strain_vector[5]); | ||
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if (mean_pressure != 0) { | ||
inertial_number = equivalent_strain_rate * grain_diameter / std::sqrt(std::fabs(mean_pressure) / grain_density); | ||
} | ||
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double exponent; | ||
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if (inertial_number > inertial_number_one) { | ||
const double first_viscous_term = static_friction; | ||
const double second_viscous_term = delta_friction * inertial_number / (inertial_number_zero + inertial_number); | ||
effective_dynamic_viscosity = (first_viscous_term + second_viscous_term); | ||
} else { | ||
const double denominator = static_friction * inertial_number_zero + dynamic_friction * inertial_number_one + | ||
infinite_friction_coeff * std::pow(inertial_number_one, 2); | ||
exponent = alpha_parameter * (inertial_number_zero + inertial_number_one) * | ||
(inertial_number_zero + inertial_number_one) / std::pow(denominator, 2); | ||
const double firstAconstant = inertial_number_one * std::exp(exponent); | ||
effective_dynamic_viscosity = std::sqrt(alpha_parameter / std::log(firstAconstant / inertial_number)); | ||
} | ||
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if (equivalent_strain_rate != 0 && std::fabs(mean_pressure) != 0) { | ||
exponent = -equivalent_strain_rate / regularization_coeff; | ||
effective_dynamic_viscosity *= std::fabs(mean_pressure) * (1.0 - std::exp(exponent)) / equivalent_strain_rate; | ||
} else { | ||
if (mean_pressure == 0.0 && equivalent_strain_rate != 0.0) { | ||
effective_dynamic_viscosity *= | ||
1.0 / std::sqrt(std::pow(equivalent_strain_rate, 2) + std::pow(regularization_coeff, 2)); | ||
} else if (mean_pressure != 0 && equivalent_strain_rate == 0) { | ||
effective_dynamic_viscosity *= | ||
std::fabs(mean_pressure) / std::sqrt(0.001 + std::pow(regularization_coeff, 2)); | ||
} else { | ||
effective_dynamic_viscosity = 1.0; | ||
} | ||
} | ||
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const double strain_trace = r_strain_vector[0] + r_strain_vector[1] + r_strain_vector[2]; | ||
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r_stress_vector[0] = 2.0 * effective_dynamic_viscosity * (r_strain_vector[0] - strain_trace / 3.0); | ||
r_stress_vector[1] = 2.0 * effective_dynamic_viscosity * (r_strain_vector[1] - strain_trace / 3.0); | ||
r_stress_vector[2] = 2.0 * effective_dynamic_viscosity * (r_strain_vector[2] - strain_trace / 3.0); | ||
r_stress_vector[3] = 2.0 * effective_dynamic_viscosity * r_strain_vector[3]; | ||
r_stress_vector[4] = 2.0 * effective_dynamic_viscosity * r_strain_vector[4]; | ||
r_stress_vector[5] = 2.0 * effective_dynamic_viscosity * r_strain_vector[5]; | ||
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if (r_options.Is(ConstitutiveLaw::COMPUTE_CONSTITUTIVE_TENSOR)) { | ||
this->EffectiveViscousConstitutiveMatrix3D(effective_dynamic_viscosity, rValues.GetConstitutiveMatrix()); | ||
} | ||
} | ||
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std::string BarkerBercovierMuIRheology3DLaw::Info() const { return "BarkerBercovierMuIRheology3DLaw"; } | ||
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//******************CHECK CONSISTENCY IN THE CONSTITUTIVE LAW****************** | ||
//***************************************************************************** | ||
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int BarkerBercovierMuIRheology3DLaw::Check(const Properties& rMaterialProperties, const GeometryType& rElementGeometry, | ||
const ProcessInfo& rCurrentProcessInfo) { | ||
KRATOS_CHECK_VARIABLE_KEY(STATIC_FRICTION); | ||
KRATOS_CHECK_VARIABLE_KEY(DYNAMIC_FRICTION); | ||
KRATOS_CHECK_VARIABLE_KEY(INERTIAL_NUMBER_ZERO); | ||
KRATOS_CHECK_VARIABLE_KEY(GRAIN_DIAMETER); | ||
KRATOS_CHECK_VARIABLE_KEY(GRAIN_DENSITY); | ||
KRATOS_CHECK_VARIABLE_KEY(REGULARIZATION_COEFFICIENT); | ||
KRATOS_CHECK_VARIABLE_KEY(INERTIAL_NUMBER_ONE); | ||
KRATOS_CHECK_VARIABLE_KEY(ALPHA_PARAMETER); | ||
KRATOS_CHECK_VARIABLE_KEY(INFINITE_FRICTION); | ||
KRATOS_CHECK_VARIABLE_KEY(BULK_MODULUS); | ||
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if (rMaterialProperties[STATIC_FRICTION] <= 0.0) { | ||
KRATOS_ERROR | ||
<< "Incorrect or missing STATIC_FRICTION provided in process info for BarkerBercovierMuIRheology3DLaw: " | ||
<< rMaterialProperties[STATIC_FRICTION] << std::endl; | ||
} | ||
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if (rMaterialProperties[DYNAMIC_FRICTION] <= 0.0) { | ||
KRATOS_ERROR | ||
<< "Incorrect or missing DYNAMIC_FRICTION provided in process info for BarkerBercovierMuIRheology3DLaw: " | ||
<< rMaterialProperties[DYNAMIC_FRICTION] << std::endl; | ||
} | ||
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if (rMaterialProperties[INERTIAL_NUMBER_ZERO] <= 0.0) { | ||
KRATOS_ERROR << "Incorrect or missing INERTIAL_NUMBER_ZERO provided in process info for " | ||
"BarkerBercovierMuIRheology3DLaw: " | ||
<< rMaterialProperties[INERTIAL_NUMBER_ZERO] << std::endl; | ||
} | ||
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if (rMaterialProperties[INERTIAL_NUMBER_ONE] <= 0.0) { | ||
KRATOS_ERROR | ||
<< "Incorrect or missing INERTIAL_NUMBER_ONE provided in process info for BarkerBercovierMuIRheology3DLaw: " | ||
<< rMaterialProperties[INERTIAL_NUMBER_ONE] << std::endl; | ||
} | ||
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if (rMaterialProperties[GRAIN_DIAMETER] <= 0.0) { | ||
KRATOS_ERROR | ||
<< "Incorrect or missing GRAIN_DIAMETER provided in process info for BarkerBercovierMuIRheology3DLaw: " | ||
<< rMaterialProperties[GRAIN_DIAMETER] << std::endl; | ||
} | ||
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if (rMaterialProperties[GRAIN_DENSITY] <= 0.0) { | ||
KRATOS_ERROR | ||
<< "Incorrect or missing GRAIN_DENSITY provided in process info for BarkerBercovierMuIRheology3DLaw: " | ||
<< rMaterialProperties[GRAIN_DENSITY] << std::endl; | ||
} | ||
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if (rMaterialProperties[REGULARIZATION_COEFFICIENT] <= 0.0) { | ||
KRATOS_ERROR << "Incorrect or missing REGULARIZATION_COEFFICIENT provided in process info for " | ||
"BarkerBercovierMuIRheology3DLaw: " | ||
<< rMaterialProperties[REGULARIZATION_COEFFICIENT] << std::endl; | ||
} | ||
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if (rMaterialProperties[INFINITE_FRICTION] <= 0.0) { | ||
KRATOS_ERROR | ||
<< "Incorrect or missing INFINITE_FRICTION provided in process info for BarkerBercovierMuIRheology3DLaw: " | ||
<< rMaterialProperties[INFINITE_FRICTION] << std::endl; | ||
} | ||
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if (rMaterialProperties[ALPHA_PARAMETER] <= 0.0) { | ||
KRATOS_ERROR | ||
<< "Incorrect or missing ALPHA_PARAMETER provided in process info for BarkerBercovierMuIRheology3DLaw: " | ||
<< rMaterialProperties[ALPHA_PARAMETER] << std::endl; | ||
} | ||
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if (rMaterialProperties[BULK_MODULUS] <= 0.0) { | ||
KRATOS_ERROR | ||
<< "Incorrect or missing BULK_MODULUS provided in process info for BarkerBercovierMuIRheology3DLaw: " | ||
<< rMaterialProperties[BULK_MODULUS] << std::endl; | ||
} | ||
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return 0; | ||
} | ||
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double BarkerBercovierMuIRheology3DLaw::GetEffectiveViscosity(ConstitutiveLaw::Parameters& rParameters) const { | ||
return rParameters.GetConstitutiveMatrix()(5, 5); | ||
} | ||
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double BarkerBercovierMuIRheology3DLaw::GetEffectiveDensity(ConstitutiveLaw::Parameters& rParameters) const { | ||
const Properties& r_prop = rParameters.GetMaterialProperties(); | ||
const double effective_density = r_prop[DENSITY]; | ||
return effective_density; | ||
} | ||
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void BarkerBercovierMuIRheology3DLaw::save(Serializer& rSerializer) const { | ||
KRATOS_SERIALIZE_SAVE_BASE_CLASS(rSerializer, PfemFluidConstitutiveLaw) | ||
} | ||
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void BarkerBercovierMuIRheology3DLaw::load(Serializer& rSerializer) { | ||
KRATOS_SERIALIZE_LOAD_BASE_CLASS(rSerializer, PfemFluidConstitutiveLaw) | ||
} | ||
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} // Namespace Kratos |
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