vtkLagrangianMatidaIntegrationModel.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkLagrangianMatidaIntegrationModel_h
#define vtkLagrangianMatidaIntegrationModel_h

#include "vtkFiltersFlowPathsModule.h" // For export macro
#include "vtkLagrangianBasicIntegrationModel.h"

VTK_ABI_NAMESPACE_BEGIN
class VTKFILTERSFLOWPATHS_EXPORT vtkLagrangianMatidaIntegrationModel
  : public vtkLagrangianBasicIntegrationModel
{
public:
  vtkTypeMacro(vtkLagrangianMatidaIntegrationModel, vtkLagrangianBasicIntegrationModel);
  void PrintSelf(ostream& os, vtkIndent indent) override;
  static vtkLagrangianMatidaIntegrationModel* New();

  // Needed for multiple signatures polymorphism
  using Superclass::FunctionValues;

  int FunctionValues(vtkLagrangianParticle* particle, vtkDataSet* dataSet, vtkIdType cellId,
    double* weights, double* x, double* f) override;


  vtkSetVector3Macro(Gravity, double);
  vtkGetVector3Macro(Gravity, double);

protected:
  vtkLagrangianMatidaIntegrationModel();
  ~vtkLagrangianMatidaIntegrationModel() override;

  static double GetRelaxationTime(double dynVisc, double diameter, double density);

  static double GetDragCoefficient(const double* flowVelocity, const double* particleVelocity,
    double dynVisc, double particleDiameter, double flowDensity);

  double Gravity[3] = { 0, 0, -9.8 };

private:
  vtkLagrangianMatidaIntegrationModel(const vtkLagrangianMatidaIntegrationModel&) = delete;
  void operator=(const vtkLagrangianMatidaIntegrationModel&) = delete;
};

VTK_ABI_NAMESPACE_END
#endif