Title of article :
DecompositionsofbubblyflowPIVvelocityfieldsusingdiscretewaveletsmulti-resolutionandmulti-sectionimagemethodOriginalResearchArticle
Author/Authors :
Je-EunChoi، نويسنده , , MasahiroTakei، نويسنده , , Deog-HeeDoh، نويسنده , , Hyo-JaeJo، نويسنده , , YassinA.Hassan، نويسنده , , JavierOrtiz-Villafuerte، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
9
From page :
2055
To page :
2063
Abstract :
Currently,wavelettransformsarewidelyusedfortheanalysesofparticleimagevelocimetry(PIV)velocityvectorfields.Thisisbecausethewaveletprovidesnotonlyspatialinformationofthevelocityvectors,butalsoofthetimeandfrequencydomains.Inthisstudy,adiscretewavelettransformisappliedtorealPIVimagesofbubblyflows.Thevectorfieldsobtainedbyaself-madecross-correlationPIValgorithmwereusedforthediscretewavelettransform.Theperformancesofthediscretewavelettransformswereinvestigatedbychangingthelevelofpowerofdiscretization.Theimagesdecomposedbywaveletmulti-resolutionshowedconspicuouscharacteristicsofthebubblyflowsforthedifferentlevels.Ahighspatialbubbleconcentratedareacouldbeevaluatedbytheconstructeddiscretewavelettransformalgorithm,inwhichhigh-leveledwaveletsplaydominantrolesinrevealingtheflowcharacteristics.
Journal title :
Nuclear Engineering and Design Eslah
Serial Year :
2008
Journal title :
Nuclear Engineering and Design Eslah
Record number :
895160
Link To Document :
https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=895160
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