Namespace for Womersley problem. More...

Functions
void	get_boundary_values (const Vector< double > &x, Vector< double > &u)
	Some "solution" for assignment of boundary values. More...

void	source_function (const Vector< double > &x_vect, double &source)
	Zero source function. More...

void	wind_function (const Vector< double > &x, Vector< double > &wind)
	Wind. More...

double	prescribed_volume_flux (const double &time)
	Prescribed volume flux – must be assigned to Prescribed_volume_flux. More...

double	prescribed_pressure_gradient (const double &time)
	Prescribed pressure gradient. More...

Variables
double	Peclet =200.0
	Peclet number. More...

double	Alpha =50.0
	Parameter for steepness of step in boundary values. More...

double	TanPhi =1.0
	Parameter for angle of step in boundary values: 45 degrees. More...

double	Prescribed_volume_flux =0.0
	Prescribed volume flux. More...

double	Alpha_sq =10.0
	Womersley number. More...

double	L_impedance =7.0
	Length of impedance tube. More...

Detailed Description

Namespace for Womersley problem.

Namespace for global parameters: Unforced problem with boundary values corresponding to a steep tanh step profile oriented at 45 degrees across the domain.

Function Documentation

◆ get_boundary_values()

void GlobalPhysicalParameters::get_boundary_values	(	const Vector< double > &	x,
		Vector< double > &	u
	)

Some "solution" for assignment of boundary values.

  {
   u[0]=tanh(1.0-Alpha*(TanPhi*x[0]-x[1]));
  }

References Alpha, Eigen::bfloat16_impl::tanh(), TanPhi, and plotDoE::x.

Referenced by SUPGAdvectionDiffusionProblem< ELEMENT >::actions_before_newton_solve().

◆ prescribed_pressure_gradient()

double GlobalPhysicalParameters::prescribed_pressure_gradient ( const double & time )

Prescribed pressure gradient.

  {
   return 2.0*cos(2.0*MathematicalConstants::Pi*time);
  }

References cos(), and BiharmonicTestFunctions2::Pi.

Referenced by run_prescribed_pressure_gradient().

◆ prescribed_volume_flux()

double GlobalPhysicalParameters::prescribed_volume_flux ( const double & time )

Prescribed volume flux – must be assigned to Prescribed_volume_flux.

  {
   return 2.0*cos(2.0*MathematicalConstants::Pi*time);
  }

References cos(), and BiharmonicTestFunctions2::Pi.

Referenced by run_impedance_tube(), and run_prescribed_flux().

◆ source_function()

void GlobalPhysicalParameters::source_function	(	const Vector< double > &	x_vect,
		double &	source
	)

Zero source function.

  {
   source=0.0;
  }

References TestProblem::source().

Referenced by main().

◆ wind_function()

void GlobalPhysicalParameters::wind_function	(	const Vector< double > &	x,
		Vector< double > &	wind
	)

Wind.

  {
   wind[0]=sin(6.0*x[1]);
   wind[1]=cos(6.0*x[0]);
  }

References cos(), sin(), and plotDoE::x.

Referenced by main().

Variable Documentation

◆ Alpha

double GlobalPhysicalParameters::Alpha =50.0

Parameter for steepness of step in boundary values.

Referenced by get_boundary_values().

◆ Alpha_sq

double GlobalPhysicalParameters::Alpha_sq =10.0

Womersley number.

Referenced by run_impedance_tube(), run_navier_stokes_outflow(), run_prescribed_flux(), and run_prescribed_pressure_gradient().

◆ L_impedance

double GlobalPhysicalParameters::L_impedance =7.0

Length of impedance tube.

Referenced by CollapsibleChannelProblem< ELEMENT >::CollapsibleChannelProblem(), run_impedance_tube(), run_navier_stokes_outflow(), CollapsibleChannelProblem< ELEMENT >::setup_outflow_impedance_elements(), and CollapsibleChannelProblem< ELEMENT >::unsteady_run().

◆ Peclet

double GlobalPhysicalParameters::Peclet =200.0

Peclet number.

Referenced by SUPGAdvectionDiffusionProblem< ELEMENT >::SUPGAdvectionDiffusionProblem().

◆ Prescribed_volume_flux

double GlobalPhysicalParameters::Prescribed_volume_flux =0.0

Prescribed volume flux.

Referenced by run_impedance_tube(), run_prescribed_flux(), CollapsibleChannelProblem< ELEMENT >::setup_outflow_flux_control_elements(), and CollapsibleChannelProblem< ELEMENT >::unsteady_run().

◆ TanPhi

double GlobalPhysicalParameters::TanPhi =1.0

Parameter for angle of step in boundary values: 45 degrees.