Class for explicit pressure calculation. More...

#include <explicit.hpp>

Inheritance diagram for PressureCalculator::Explicit:

Collaboration diagram for PressureCalculator::Explicit:

Public Member Functions
std::vector< double >	calc (Particles &particles) override
	calculate pressure

	~Explicit () override

	Explicit (double n0, double soundSpeed, int dimension, double particleDistance)

Public Member Functions inherited from PressureCalculator::Interface
virtual	~Interface ()
	destructor

Private Attributes
double	n0

double	soundSpeed

Detailed Description

Class for explicit pressure calculation.

This class calculates pressure explicitly.

Definition at line 14 of file explicit.hpp.

Constructor & Destructor Documentation

◆ ~Explicit()

Explicit::~Explicit ( )

override

Definition at line 12 of file explicit.cpp.

12 {

13}

◆ Explicit()

Explicit::Explicit	(	double	n0,
		double	soundSpeed,
		int	dimension,
		double	particleDistance )

Definition at line 7 of file explicit.cpp.

                                                                                       {
    this->soundSpeed = soundSpeed;
    this->n0         = RefValues(dimension, particleDistance, re).n0;
}

Member Function Documentation

◆ calc()

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

overridevirtual

calculate pressure

Parameters

particles particles

Implements PressureCalculator::Interface.

Definition at line 15 of file explicit.cpp.

                                                     {
    std::vector<double> pressure;
    pressure.resize(particles.size());
 
#pragma omp parallel for
    for (const auto& pi : particles) {
        if (pi.type == ParticleType::Ghost) {
            pressure[pi.id] = 0;
        } else {
            auto ni  = pi.numberDensity;
            auto c   = this->soundSpeed;
            auto rho = pi.density;
 
            if (ni > n0) {
                pressure[pi.id] = c * c * rho * (ni - n0) / n0;
            } else {
                pressure[pi.id] = 0;
            }
        }
    }
 
    return pressure;
}

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Member Data Documentation

◆ n0

double PressureCalculator::Explicit::n0

private

Definition at line 26 of file explicit.hpp.

◆ soundSpeed

double PressureCalculator::Explicit::soundSpeed