mathcomp.assemble.convdiff
Class ConvDiffHomogen

java.lang.Object
  mathcomp.monitor.DefaultReportable
      mathcomp.monitor.DefaultAlgorithm
          mathcomp.assemble.Assembler
              mathcomp.assemble.LagrangeLinearAssembler
                  mathcomp.assemble.convdiff.AbstractCDA
                      mathcomp.assemble.convdiff.AbstractCDA_cV
                          mathcomp.assemble.convdiff.ConvDiffHomogen

All Implemented Interfaces:

java.lang.Runnable, Algorithm, Reportable

Direct Known Subclasses:

CDH_EF_Flux, CDH_HVM, CDH_RFB, CDH_Shishkin, CDH_SUPG, CDH_WBF, CDH_Weighted

public class ConvDiffHomogen
extends AbstractCDA_cV

An example class that extends AbstractConvDiffModel. A convection-diffusion problem with homogenous dirichlet bounday. For the diffusion parameter we have the variable epsilon for the convection in this assembler we have constant in both directions similar values stores in the double array b.

Author:

ch.wust

Field Summary

Fields inherited from class mathcomp.assemble.convdiff.AbstractCDA

area, aSixth, aThird, d0, d1, epsilon, tau, tauIndex

Fields inherited from class mathcomp.assemble.LagrangeLinearAssembler

gradVector

Fields inherited from class mathcomp.assemble.Assembler

dirichletBoundaryValues, solScale

Constructor Summary

ConvDiffHomogen()

Method Summary

double	evalBX(Node n)
double	evalBY(Node n)
double	evalExactSolution(Node n) For error calculations we need to know the exact solution of a problem.
double	evalF(Node n) Evaluates the right hand side function f on the Node n
double	evalU(double x, double b)
double	evalV(double y, double b)
double	getExactPartialU(double x, double b)
double	getExactPartialV(double y, double b)
double	getExactPartialX(Node n) Direct access to partialX
double	getExactPartialY(Node n) Direct access to partialY
java.lang.String	getPreferredGridFileName() Every Assembler has a preferred grid.
double	getSolScale()
java.lang.String	toString() Set the name of your assembler by overwriting this method in your assembler class.

Methods inherited from class mathcomp.assemble.convdiff.AbstractCDA_cV

approxLHS

Methods inherited from class mathcomp.assemble.convdiff.AbstractCDA

approxConvectionIntegral, getEpsilon, getFlowSegment, getTau, getTauIndex, setEpsilon, setTauIndex, zeta

Methods inherited from class mathcomp.assemble.LagrangeLinearAssembler

createDof, createDofExport, evalApproxGradient, evalApproxSolution, evalBasisFuncOnRef, evalGradXBasisFuncOnRef, evalGradYBasisFuncOnRef

Methods inherited from class mathcomp.assemble.Assembler

addDirichletNodes, assembleGlobal, calcDirichletBoundary, createSurfaces, createSurfaces, evalExactGradient, getDof, getElementMatrix, getErrorCalculator, getGrid, getInfoUrl, getM, getY, report, run, setGrid, setM, setY

Methods inherited from class mathcomp.monitor.DefaultAlgorithm

algoAbortIfNeeded, algoCancel, algoClear, algoCount, algoIncrement, algoMax, isAlgoCancel, setAlgoCount, setAlgoMax

Methods inherited from class mathcomp.monitor.DefaultReportable

getReport, setReport

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface mathcomp.monitor.Reportable

getReport, setReport

Constructor Detail

ConvDiffHomogen

public ConvDiffHomogen()

Method Detail

evalBX

public double evalBX(Node n)

Specified by:

evalBX in class AbstractCDA

evalBY

public double evalBY(Node n)

Specified by:

evalBY in class AbstractCDA

evalF

public double evalF(Node n)

Description copied from class: Assembler

Evaluates the right hand side function f on the Node n

Specified by:

evalF in class Assembler

Parameters:

n - the Node where f is evaluated

Returns:

the evaluation value

evalExactSolution

public double evalExactSolution(Node n)

Description copied from class: Assembler

For error calculations we need to know the exact solution of a problem. If we don't know that, return 0.0 for every node n.

Overrides:

evalExactSolution in class Assembler

Parameters:

n - node where the exact solution should be evaluated

evalU

public double evalU(double x,
                    double b)

evalV

public double evalV(double y,
                    double b)

getExactPartialU

public double getExactPartialU(double x,
                               double b)

getExactPartialV

public double getExactPartialV(double y,
                               double b)

getExactPartialY

public double getExactPartialY(Node n)

Description copied from class: Assembler

Direct access to partialY

Overrides:

getExactPartialY in class Assembler

getExactPartialX

public double getExactPartialX(Node n)

Description copied from class: Assembler

Direct access to partialX

Overrides:

getExactPartialX in class Assembler

getSolScale

public double getSolScale()

Overrides:

getSolScale in class Assembler

toString

public java.lang.String toString()

Description copied from class: Assembler

Set the name of your assembler by overwriting this method in your assembler class.

Specified by:

toString in class Assembler

Returns:

the name of the assembler

getPreferredGridFileName

public java.lang.String getPreferredGridFileName()

Description copied from class: Assembler

Every Assembler has a preferred grid. If this method is not implemented in the specific assembler class, "square.grid" is default.

Overrides:

getPreferredGridFileName in class Assembler

Returns:

the file name of the preferred grid as a String object.