Title of article
Asphericalharmonics—Finiteelementdiscretizationoftheself-adjointangularfluxneutrontransportequationOriginalResearchArticle
Author/Authors
LiangzhiCao، نويسنده , , HongchunWu، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
8
From page
2232
To page
2239
Abstract
Thesphericalharmonics(PN)methodiswidelyusedinsolvingtheneutrontransportequation,butithassomedisadvantages.OneofthemcomesfromthecomplexityofthePNequations.Anotheronecomesfromthedifficultyofdealingwiththevacuumboundaryconditionexactly.Inthispaper,thePNmethodisappliedtotheself-adjointangularflux(SAAF)neutrontransportequationandasetofPNmomentsequationscoupledwitheachotherareobtained.Aniterativemethodisutilizedtodecouplethemandsolvethemmomentbymoment.ThecorrespondingvacuumboundaryconditionisderivedbasedontheMarshakboundarycondition.Thespatialvariablesarediscretizedonunstructured-meshesbyuseofthefiniteelementmethod(FEM).Thenumericalresultsofseveralproblemsdemonstratethatthismethodcanprovidehighprecisionresultsandavoidtherayeffect,whichappearsinthediscreteordinate(SN)method,withrelativelyhighcomputationalefficiency.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2007
Journal title
Nuclear Engineering and Design Eslah
Record number
941438
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