Namespace for definition of flag boundaries. More...

Classes
class	TopOfFlag
	GeomObject that defines the upper boundary of the flag. More...

class	BottomOfFlag
	GeomObject that defines the lower boundary of the flag. More...

class	TipOfFlag
	GeomObject that defines the tip of the flag. More...

Functions
Vector< double >	upper_tip (const double &t)
	Time-dependent vector to upper tip of the "flag". More...

Vector< double >	lower_tip (const double &t)
	Time-dependent vector to bottom tip of the "flag". More...

void	setup (Time *time_pt)
	Create all GeomObjects needed to define the cylinder and the flag. More...

Variables
double	Period =10.0
	Period of prescribed flag oscillation. More...

double	H =0.2
	Height of flag. More...

double	L =3.5
	Length of flag. More...

double	Centre_x =2.0
	x position of centre of cylinder More...

double	Centre_y =2.0
	y position of centre of cylinder More...

double	Radius =0.5
	Radius of cylinder. More...

double	Amplitude =0.33
	Amplitude of tip deflection. More...

Time *	Time_pt =0
	Pointer to the global time object. More...

TopOfFlag *	Top_flag_pt =0
	Pointer to GeomObject that bounds the upper edge of the flag. More...

BottomOfFlag *	Bottom_flag_pt =0
	Pointer to GeomObject that bounds the bottom edge of the flag. More...

TipOfFlag *	Tip_flag_pt =0
	Pointer to GeomObject that bounds the tip edge of the flag. More...

Circle *	Cylinder_pt =0

Detailed Description

Namespace for definition of flag boundaries.

Function Documentation

◆ lower_tip()

Vector<double> Flag_definition::lower_tip ( const double & t )

Time-dependent vector to bottom tip of the "flag".

   {
    double tmp_ampl=Amplitude;
    if (t<=0.0) tmp_ampl=0.0;
    Vector<double> lowertip(2);
    lowertip[0]= Centre_x+Radius*sqrt(1.0-H*H/(4.0*Radius*Radius))+L;
    lowertip[1]= Centre_y-0.5*H-
     tmp_ampl*sin(2.0*MathematicalConstants::Pi*t/Period);
    return lowertip;
   } // end of bottom tip

References Amplitude, Centre_x, Centre_y, H, L, Period, BiharmonicTestFunctions2::Pi, Radius, sin(), sqrt(), and plotPSD::t.

Referenced by Flag_definition::BottomOfFlag::position(), and Flag_definition::TipOfFlag::position().

◆ setup()

void Flag_definition::setup ( Time * time_pt )

Create all GeomObjects needed to define the cylinder and the flag.

Create GeomObject that bounds the upper edge of the flag

Create GeomObject that bounds the bottom edge of the flag

Create GeomObject that bounds the tip edge of the flag

  {
   // Assign pointer to global time object
   Time_pt=time_pt;
   
   // Create GeomObject of type Circle that defines the
   // central cylinder.
   Cylinder_pt=new Circle(Centre_x,Centre_y,Radius);
   
   Top_flag_pt=new TopOfFlag;
   
   Bottom_flag_pt=new BottomOfFlag;
   
   Tip_flag_pt=new TipOfFlag;
  
  }

References Bottom_flag_pt, Centre_x, Centre_y, Cylinder_pt, Radius, Time_pt, Tip_flag_pt, and Top_flag_pt.

Referenced by ElasticCollapsibleChannelMesh< ELEMENT >::ElasticCollapsibleChannelMesh(), ElasticRefineableCollapsibleChannelMesh< ELEMENT >::ElasticRefineableCollapsibleChannelMesh(), main(), run_impedance_tube(), run_navier_stokes_outflow(), HelmholtzPointSourceProblem< ELEMENT >::setup_point_source(), and TurekNonFSIProblem< ELEMENT >::TurekNonFSIProblem().

◆ upper_tip()

Vector<double> Flag_definition::upper_tip ( const double & t )

Time-dependent vector to upper tip of the "flag".

   {
    double tmp_ampl=Amplitude;
    if (t<=0.0) tmp_ampl=0.0;
    Vector<double> uppertip(2);
    uppertip[0]= Centre_x+Radius*sqrt(1.0-H*H/(4.0*Radius*Radius))+L;
    uppertip[1]= Centre_y+0.5*H-
     tmp_ampl*sin(2.0*MathematicalConstants::Pi*t/Period);
    return uppertip;
   }  