coupling::solvers::CouetteSolver< dim > Class Template Reference

implements an analytic Couette flow solver. More...

#include <CouetteSolver.h>

Inheritance diagram for coupling::solvers::CouetteSolver< dim >:

Collaboration diagram for coupling::solvers::CouetteSolver< dim >:

Public Member Functions
	CouetteSolver (const double &channelheight, const double &wallVelocity, const double kinVisc)
	a simple constructor
virtual	~CouetteSolver ()
	a dummy destructor
virtual void	advance (double dt)
	advances one time step dt in time
virtual tarch::la::Vector< dim, double >	getVelocity (tarch::la::Vector< dim, double > pos) const
	returns the velocity vector at a certain channel position
virtual void	setWallVelocity (const tarch::la::Vector< dim, double > wallVelocity)
	changes the velocity at the moving for, refers to Couette scenario
Public Member Functions inherited from coupling::solvers::AbstractCouetteSolver< dim >
virtual	~AbstractCouetteSolver ()
	a dummy destructor

Private Attributes
const double	_channelheight
	height of couette channel
double	_wallVelocity
	velocity of moving wall
const double	_kinVisc
	kinematic viscosity
double	_time
	current time

Detailed Description

template<unsigned int dim>
class coupling::solvers::CouetteSolver< dim >

implements an analytic Couette flow solver.

In our scenario, the lower wall is accelerated and the upper wall stands still. The lower wall is located at zero height.

Author

Philipp Neumann

Template Parameters

dim	refers to the spacial dimension of the simulation, can be 1, 2, or 3

Constructor & Destructor Documentation

CouetteSolver()

template<unsigned int dim>

coupling::solvers::CouetteSolver< dim >::CouetteSolver ( const double & channelheight, const double & wallVelocity, const double kinVisc )

inline

a simple constructor

Parameters

channelheight	the height and width of the channel in y and z direction
wallVelocity	the velocity at the moving wall
kinVisc	the kinematic viscosity of the fluid

Member Function Documentation

advance()

template<unsigned int dim>

virtual void coupling::solvers::CouetteSolver< dim >::advance ( double dt )

inlinevirtual

advances one time step dt in time

Parameters

dt	size of the time step to advance

Implements coupling::solvers::AbstractCouetteSolver< dim >.

getVelocity()

template<unsigned int dim>

virtual tarch::la::Vector< dim, double > coupling::solvers::CouetteSolver< dim >::getVelocity ( tarch::la::Vector< dim, double > pos ) const

inlinevirtual

returns the velocity vector at a certain channel position

for the first entry of the vector is the analytic solution of the Couette scenario returned, given by: u(z,t)= V(1-z/H) - 2V/pi*sum_k=1^infty 1/k*sin(k*pi*z/H)*exp(-k^2 pi^2/H^2 * nu*t) The other two entries are 0

Parameters

pos	the position to return the velocity for

Returns

a velocity vector

Implements coupling::solvers::AbstractCouetteSolver< dim >.

setWallVelocity()

template<unsigned int dim>

virtual void coupling::solvers::CouetteSolver< dim >::setWallVelocity ( const tarch::la::Vector< dim, double > wallVelocity )

inlinevirtual

changes the velocity at the moving for, refers to Couette scenario

Parameters

wallVelocity

value to which the veloctiy will be set

Implements coupling::solvers::AbstractCouetteSolver< dim >.

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The documentation for this class was generated from the following file:

• coupling/solvers/CouetteSolver.h