PIV MEASUREMENT OF PLANE OFFSET JET DISCHARGED INTO WATER OF FINITE DEPTH(Free and Confined Jet)

Abstract

iDepartmenC of Rcscarchlnterdisciplinnor}' Graduate SctK)()l oE' Medieinc Eif)d Engineering, UnlrJetsity of Yamanashi 4-3-] 1 1}ikedtt, Kofu 4or}-8511, Japan. tsunoda@ya[llanaShi.acjP *]Canon inc,, 10-2, Shimomflxukt.) 3-chome. OhL:i-ku,Tol"'o l46-S501, japan *]DepartmenLol'EducationhiterdiscipliiiaryG!'aduateSehoolofMedici]ea]dEngineering,UniversityofYamanushi ABSTRACT P]ane guhrnen/ged turbulcmt water jet discharged parullel to the offset bottom waL! in Lhe channcl with a finite water depth-,as investigated cxperitnenta]ly Depending o" inc depth of the nezzlc and its height fi'(Mn the bottom, the jet defiects towards either of the two beLmdaries, that is, tlie fu)c surface oi' the salid wall.[)etailed data on the velocity ficld measured b}, using the PIV method are giveti in Qrder to examine the inflLtence of aie opposing boundary upon the defiecting jet and the diffitrcnoc of thejet develepinent between the deflection to thc free bounda]'y and that to the selid boundar}: Tlic mean velocity profi]es imd the spread rates of thc jet are eompared with thc.}se of a crmventicmal pkumc free jet applying a curved co[Tdinate s},stein along thcjct centerlitie, sft.te Lt･/1 . Fi.o. 1 Expcrimcntal apparatus and PIV setup.