Title of article :
SolutionofneutrontransportequationusingDaubechies’waveletexpansionintheangulardiscretizationOriginalResearchArticle
Author/Authors :
LiangzhiCao، نويسنده , , HongchunWu، نويسنده , , YouqiZheng، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Daubechies’waveletexpansionisintroducedtodiscretizetheangularvariablesoftheneutrontransportequationwhentheneutronangularfluxvariesveryacutelywiththeangulardirections.Animprovementismadebycouplingone-dimensionalwaveletexpansionanddiscreteordinatemethodtomaketwo-dimensionalangulardiscretizationefficientandstable.Theangulardomainisdividedintoseveralsubdomainsfortreatingthevacuumboundaryconditionexactlyintheunstructuredgeometry.Asetofwaveletequationscoupledwitheachotherisobtainedineachsubdomain.Aniterativemethodisutilizedtodecouplethewaveletmoments.Thenumericalresultsofseveralbenchmarkproblemsdemonstratethatthewaveletexpansionmethodcanprovidemoreaccurateresultsbylower-orderexpansionthanotherangulardiscretizationmethods.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
