Class FDSolution

java.lang.Object
  Solution
      FluidSolution
          FDSolution

public class FDSolution

extends FluidSolution

FDSolution -- contains the finite difference solver.

See Also:

FluidSolution, Solution

Field Summary

protected boolean

isForward True if needs to shiftLevels

Fields inherited from class Solution

df, dfm, dfp, dg, dgm, dgp, dh, dhm, dhp, dx, f, f0, fm, fp, g, gm, gp, h, hm, hp, ic, initialMoments, mesh, method, pde, s, scheme, sm, sp, time, x, x_0, x_1, xOffset, xSize, y_0, y_1, yOffset, ySize

Constructor Summary

FDSolution(RunData runData)
Creates a FDSolution object.

Method Summary

void	discretize(ShapeFunction function) Discretize the initial Shape function and initialize the moments
boolean	hasOption(java.lang.String option) Tells whether the solution implements a option
boolean	next(RunData runData, PhysData physData) Advance the solution forward one step in time.
boolean	previous(RunData runData, PhysData physData) Take the solution backward one step to initialize schemes with 3 time levels.
protected void	shiftLevels() Internal function for copying new -> old

Methods inherited from class Solution

calculateMoments, getTime, getValue, getValue, getWinSize, incTime, limits, measure, momentsDeviation, output, plot, rescale, setIC, setMethod, setPde, setScheme, setTime, updateHeaders

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

isForward

protected boolean isForward

True if needs to shiftLevels

Constructor Detail

FDSolution

public FDSolution(RunData runData)

Creates a FDSolution object.

Parameters:

runData - The run time parameters

Method Detail

next

public boolean next(RunData runData,
                    PhysData physData)

Advance the solution forward one step in time. The equation is set by the internal variable pde and the numerical scheme by the internal variable scheme

Specified by:

next in class Solution

Parameters:

runData - List of run parameters

physData - Physical parameters (e.g. potential)

Returns:

True if a scheme is implemented for that equation

See Also:

RunData

previous

public boolean previous(RunData runData,
                        PhysData physData)

Take the solution backward one step to initialize schemes with 3 time levels. The equation is set by the internal variable pde and the numerical scheme by the internal variable scheme

Specified by:

previous in class Solution

Parameters:

runData - List of run parameters

Returns:

True if an initialisation scheme is implemented for that equation

See Also:

RunData

hasOption

public boolean hasOption(java.lang.String option)

Tells whether the solution implements a option

Specified by:

hasOption in class Solution

Parameters:

option - The the option to implement

Returns:

True if the option is implemented

See Also:

jbone.pdeNames, jbone.schemeNames

discretize

public void discretize(ShapeFunction function)

Discretize the initial Shape function and initialize the moments

Specified by:

discretize in class Solution

Parameters:

function - The initial shape to be approximated

shiftLevels

protected void shiftLevels()

Internal function for copying new -> old