IBGeometries.h

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// $Id$
//==============================================================================
//==============================================================================
 
#ifndef _IB_GEOMETRIES_H
#define _IB_GEOMETRIES_H
 
#include "ImmersedBoundaries.h"
 
class RealFunc;
 
 
class Hole2D : public Immersed::Geometry
{
public:
  Hole2D(double r = 1.0, double x = 0.0, double y = 0.0) : R(r), Xc(x), Yc(y) {}
 
  virtual double Alpha(double X, double Y, double = 0.0) const;
 
  virtual ElementBlock* tesselate() const;
 
protected:
  double R;  
  double Xc; 
  double Yc; 
};
 
 
class Oval2D : public Hole2D
{
public:
  Oval2D(double r, double x0, double y0, double x1, double y1);
 
  virtual double Alpha(double X, double Y, double) const;
 
  virtual ElementBlock* tesselate() const;
 
private:
  double X1; 
  double Y1; 
  double D2; 
  double LR; 
};
 
 
class PerforatedPlate2D : public Immersed::Geometry
{
public:
  PerforatedPlate2D() {}
  explicit PerforatedPlate2D(Hole2D* hole) : holes({hole}) { }
  virtual ~PerforatedPlate2D();
 
  void addHole(double r, double x, double y);
  void addHole(double r, double x0, double y0, double x1, double y1);
 
  virtual double Alpha(double X, double Y, double) const;
 
  virtual ElementBlock* tesselate() const;
 
private:
  std::vector<Hole2D*> holes; 
};
 
 
class GeoFunc2D : public Immersed::Geometry
{
public:
  explicit GeoFunc2D(RealFunc* f = nullptr, double p = 1.0, double eps = 0.5);
 
  virtual double Alpha(const Vec3& X) const;
 
private:
  RealFunc* myAlpha; 
  double myExponent; 
  double  threshold; 
};
 
#endif