UnivTime-DepErlangenendenGradesthenLaminar,ergTvransitionalecandakult?tTErlangen-N?rnurbulenErlangungtvPipB?LENTe2008FlowsFZeitabh?ngigederLaminare,ersit?tTbransitionalezurunddesTDOKTOR-INGENIEURurbulenorgelegtteonRohrstr?m?NSALungen-DerTProf.AlsDurstDissertationterstatter:genehmigtChristophvHubonDr.derTTDekechabil.heni.R.FFakult?tDr.-Ing.derProf.Universersit?tan:Erlangen-N?rnDr.-Ing.bJohannesergerThagProf.derDr.hranzung:Prof.28.01.2008DimosthenisTrimisagDr.-Ing.derEgbPromotion:07.07.2008To the memory of my father ipleasureandknoIwledgmenVivtsopThereecialaresharing.soBamaneyProf.pKasceopleerimenwhotheortiontributedamanaktoamtheirywhelporkfromthatIHeubwandouldInaliksuppettoythank,,hoTwStamatoev?k,ergotheGorle,spaceontothisypagetomighbuttChristophnotwbeeebenougheida,toWexpressElmtheiryManthanksGrasser,totheevweryinone.discussionFirsttooftoall,wIywyouldSahiti,likBranimireJorgetoGenc,thankMariaProf.enDr.ItFwithranzandDurstwhicforalsohisacsuppDimosthenisortpandreallyhingIJohannamettheProf.wDr.hl?cFProf.ranzandDurstteam.forouldthethankrstHorsttimeFduringJosefSummerHedwig,AkSippl.ytoinyCesmeErtuncinin1998.