weakly_compressible_navier_stokes_data.h

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//    |  /           |
//    ' /   __| _` | __|  _ \   __|
//    . \  |   (   | |   (   |\__ `
//   _|\_\_|  \__,_|\__|\___/ ____/
//                   Multi-Physics
//
//  License:         BSD License
//                   Kratos default license: kratos/license.txt
//
//  Main authors:    Jordi Cotela
//                   Ruben Zorrilla
//
 
 
#pragma once
 
// System includes
 
 
// External includes
 
 
// Project includes
#include "includes/constitutive_law.h"
 
// Application includes
#include "fluid_dynamics_application_variables.h"
#include "custom_utilities/fluid_element_data.h"
#include "utilities/element_size_calculator.h"
 
namespace Kratos {
 
 
 
template< size_t TDim, size_t TNumNodes >
class WeaklyCompressibleNavierStokesData : public FluidElementData<TDim,TNumNodes, true>
{
public:
 
 
using NodalScalarData = typename FluidElementData<TDim,TNumNodes, true>::NodalScalarData;
using NodalVectorData = typename FluidElementData<TDim,TNumNodes, true>::NodalVectorData;
using ShapeFunctionsType = typename FluidElementData<TDim,TNumNodes, true>::ShapeFunctionsType;
using MatrixRowType = typename FluidElementData<TDim,TNumNodes, true>::MatrixRowType;
 
 
NodalVectorData Velocity;
NodalVectorData Velocity_OldStep1;
NodalVectorData Velocity_OldStep2;
NodalVectorData MeshVelocity;
NodalVectorData BodyForce;
 
NodalScalarData Pressure;
NodalScalarData Pressure_OldStep1;
NodalScalarData Pressure_OldStep2;
NodalScalarData Density;
NodalScalarData SoundVelocity;
 
double DynamicViscosity;
double DeltaTime;      // Time increment
double DynamicTau;     // Dynamic tau considered in ASGS stabilization coefficients
double Resistance;     // Darcy's law resistance (permeability inverse)
 
double bdf0;
double bdf1;
double bdf2;
 
// Auxiliary containers for the symbolically-generated matrices
BoundedMatrix<double,TNumNodes*(TDim+1),TNumNodes*(TDim+1)> lhs;
array_1d<double,TNumNodes*(TDim+1)> rhs;
 
double ElementSize;
 
 
void Initialize(const Element& rElement, const ProcessInfo& rProcessInfo) override
{
    // Base class Initialize manages constitutive law parameters
    FluidElementData<TDim,TNumNodes, true>::Initialize(rElement,rProcessInfo);
 
    const Geometry< Node >& r_geometry = rElement.GetGeometry();
    const Properties& r_properties = rElement.GetProperties();
    this->FillFromHistoricalNodalData(Velocity,VELOCITY,r_geometry);
    this->FillFromHistoricalNodalData(Velocity_OldStep1,VELOCITY,r_geometry,1);
    this->FillFromHistoricalNodalData(Velocity_OldStep2,VELOCITY,r_geometry,2);
    this->FillFromHistoricalNodalData(MeshVelocity,MESH_VELOCITY,r_geometry);
    this->FillFromHistoricalNodalData(BodyForce,BODY_FORCE,r_geometry);
    this->FillFromHistoricalNodalData(Pressure,PRESSURE,r_geometry);
    this->FillFromHistoricalNodalData(Density,DENSITY,r_geometry);
    this->FillFromHistoricalNodalData(Pressure_OldStep1,PRESSURE,r_geometry,1);
    this->FillFromHistoricalNodalData(Pressure_OldStep2,PRESSURE,r_geometry,2);
    this->FillFromNonHistoricalNodalData(SoundVelocity, SOUND_VELOCITY, r_geometry);
    this->FillFromProperties(DynamicViscosity,DYNAMIC_VISCOSITY,r_properties); //TODO: This needs to be retrieved from the EffectiveViscosity of the constitutive law
    this->FillFromProcessInfo(DeltaTime,DELTA_TIME,rProcessInfo);
    this->FillFromProcessInfo(DynamicTau,DYNAMIC_TAU,rProcessInfo);
 
    const Vector& BDFVector = rProcessInfo[BDF_COEFFICIENTS];
    bdf0 = BDFVector[0];
    bdf1 = BDFVector[1];
    bdf2 = BDFVector[2];
 
    // Get data from element database
    this->FillFromElementData(Resistance, RESISTANCE, rElement);
 
    // Calculate element characteristic size
    ElementSize = ElementSizeCalculator<TDim,TNumNodes>::MinimumElementSize(r_geometry);
}
 
void UpdateGeometryValues(
    const unsigned int IntegrationPointIndex,
    double NewWeight,
    const MatrixRowType& rN,
    const BoundedMatrix<double, TNumNodes, TDim>& rDN_DX) override
{
    FluidElementData<TDim,TNumNodes, true>::UpdateGeometryValues(IntegrationPointIndex,NewWeight,rN,rDN_DX);
}
 
static int Check(const Element& rElement, const ProcessInfo& rProcessInfo)
{
    const Geometry< Node >& r_geometry = rElement.GetGeometry();
 
    for (unsigned int i = 0; i < TNumNodes; i++)
    {
        KRATOS_CHECK_VARIABLE_IN_NODAL_DATA(VELOCITY,r_geometry[i]);
        KRATOS_CHECK_VARIABLE_IN_NODAL_DATA(MESH_VELOCITY,r_geometry[i]);
        KRATOS_CHECK_VARIABLE_IN_NODAL_DATA(BODY_FORCE,r_geometry[i]);
        KRATOS_CHECK_VARIABLE_IN_NODAL_DATA(PRESSURE,r_geometry[i]);
    }
 
    return 0;
}
 
 
};
 
 
 
}