PressureCalculator::Implicit Class Reference

Class for implicit pressure calculation. More...

#include <implicit.hpp>

Inheritance diagram for PressureCalculator::Implicit:

Collaboration diagram for PressureCalculator::Implicit:

Public Member Functions
std::vector< double >	calc (Particles &particles) override
	calculate pressure
	~Implicit () override
	Implicit (int dimension, double particleDistance, double re_forGradient, double re_forLaplacian, double dt, double compressibility, double relaxationCoefficient, std::unique_ptr< DirichletBoundaryConditionGenerator::Interface > &&dirichletBoundaryConditionGenerator)
Public Member Functions inherited from PressureCalculator::Interface
virtual	~Interface ()
	destructor

Private Member Functions
void	removeNegativePressure ()
	remove negative pressure for stability

Private Attributes
Particles	particles
std::vector< double >	pressure
	Solution of pressure calculation.
std::unique_ptr< DirichletBoundaryConditionGenerator::Interface >	dirichletBoundaryConditionGenerator
PressurePoissonEquation	pressurePoissonEquation

Detailed Description

Class for implicit pressure calculation.

This class has a Dirichlet boundary condition generator and a pressure Poisson solver. The generator is used within the pressure calculation process and the generated boundary condition is attached to the pressure Poisson equation.

Definition at line 21 of file implicit.hpp.

Constructor & Destructor Documentation

~Implicit()

Implicit::~Implicit ( )

override

Definition at line 48 of file implicit.cpp.

                    {
}

Implicit()

Implicit::Implicit	(	int	dimension,
		double	particleDistance,
		double	re_forGradient,
		double	re_forLaplacian,
		double	dt,
		double	compressibility,
		double	relaxationCoefficient,
		std::unique_ptr< DirichletBoundaryConditionGenerator::Interface > &&	dirichletBoundaryConditionGenerator )

Definition at line 13 of file implicit.cpp.

  {
    auto refValuesForNumberDensity            = RefValues(dimension, particleDistance, reForNumberDensity);
    auto refValuesForLaplacian                = RefValues(dimension, particleDistance, reForLaplacian);
    this->dirichletBoundaryConditionGenerator = std::move(dirichletBoundaryConditionGenerator);
    this->pressurePoissonEquation             = PressurePoissonEquation(
        dimension,
        dt,
        relaxationCoefficient,
        compressibility,
        refValuesForNumberDensity.n0,
        refValuesForLaplacian.n0,
        refValuesForLaplacian.lambda,
        reForLaplacian,
        reForNumberDensity
    );
}

Member Function Documentation

calc()

std::vector< double > Implicit::calc ( Particles & particles )

overridevirtual

calculate pressure

Parameters

particles

particles

Implements PressureCalculator::Interface.

Definition at line 39 of file implicit.cpp.

                                                     {
    auto dirichletBoundaryCondition = dirichletBoundaryConditionGenerator->generate(particles);
    this->pressurePoissonEquation.setup(particles, dirichletBoundaryCondition);
    this->pressure = this->pressurePoissonEquation.solve();
    removeNegativePressure();
 
    return this->pressure;
}

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removeNegativePressure()

void Implicit::removeNegativePressure ( )

private

remove negative pressure for stability

Definition at line 51 of file implicit.cpp.

                                      {
#pragma omp parallel for
    for (auto& p : pressure) {
        if (p < 0) {
            p = 0;
        }
    }
}

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Member Data Documentation

particles

Particles PressureCalculator::Implicit::particles

private

Definition at line 42 of file implicit.hpp.

pressure

std::vector<double> PressureCalculator::Implicit::pressure

private

Solution of pressure calculation.

Definition at line 43 of file implicit.hpp.

dirichletBoundaryConditionGenerator

std::unique_ptr<DirichletBoundaryConditionGenerator::Interface> PressureCalculator::Implicit::dirichletBoundaryConditionGenerator

private

Definition at line 44 of file implicit.hpp.

pressurePoissonEquation

PressurePoissonEquation PressureCalculator::Implicit::pressurePoissonEquation

private

Definition at line 45 of file implicit.hpp.

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The documentation for this class was generated from the following files:

• src/pressure_calculator/implicit.hpp
• src/pressure_calculator/implicit.cpp