BL_Squash Namespace Reference

Functions
double	squash_fct (const double &s)

Variables
double	Delta =0.1
	Boundary layer width. More...
double	Fract_in_BL =0.5
	Fraction of points in boundary layer. More...

Detailed Description

///////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////// Namespace to define the mapping [0,1] -> [0,1] that re-distributes nodal points across the channel width.

Namespace to define the mapping [0,1] -> [0,1] that re-distributes nodal points across the channel width.

Function Documentation

squash_fct()

double BL_Squash::squash_fct

(

const double &

s

)

Mapping [0,1] -> [0,1] that re-distributes nodal points across the channel width

 {
  // Default return
  double y=s;
  if (s<0.5*Fract_in_BL)
   {
    y=Delta*2.0*s/Fract_in_BL;
   }
  else if (s>1.0-0.5*Fract_in_BL)
   {
    y=2.0*Delta/Fract_in_BL*s+1.0-2.0*Delta/Fract_in_BL;
   }
  else
   {
    y=(1.0-2.0*Delta)/(1.0-Fract_in_BL)*s+
     (Delta-0.5*Fract_in_BL)/(1.0-Fract_in_BL);
   }
 
  return y;
 }

References Delta, Fract_in_BL, s, and y.

Referenced by CollapsibleChannelProblem< ELEMENT >::CollapsibleChannelProblem(), and FSICollapsibleChannelProblem< ELEMENT >::FSICollapsibleChannelProblem().

Variable Documentation

Delta

double BL_Squash::Delta =0.1

Boundary layer width.

Referenced by squash_fct().

Fract_in_BL

double BL_Squash::Fract_in_BL =0.5

Fraction of points in boundary layer.

Referenced by squash_fct().