study of the flow field through the runner of a propeller turbine using ...

2 downloads 0 Views 1MB Size Report
Finally, the evolution of the vortex axial velocity along its axis is presented. KEYWORDS. Axial hydraulic turbine, runner, stereoscopic PIV, leading edge vortex.
UG,$+5,QWHUQDWLRQDO0HHWLQJRIWKH:RUNJURXSRQ&DYLWDWLRQDQG'\QDPLF3UREOHPVLQ +\GUDXOLF0DFKLQHU\DQG6\VWHPV2FWREHU%UQR&]HFK5HSXEOLF

678'@ ,Q DGGLWLRQ WR WKH GHYHORSPHQWRIWKHVHVLWHVUHKDELOLWDWLRQRIH[LVWLQJSRZHUSODQWVDOVRPRWLYDWHVWKHUHVHDUFK IRUDEHWWHUXQGHUVWDQGLQJRIWKHSKHQRPHQDHQFRXQWHUHGLQWKLVNLQGRIWXUELQHV8SWRQRZ WRRXUNQRZOHGJHWKHRQO\GDWDDYDLODEOHRQWKHIORZWKURXJKVXFKUXQQHUVLVSURYLGHGE\WKH &)' FDOFXODWLRQ 7KLV SDSHU SUHVHQWV WKH LQYHVWLJDWLRQ RI WKH LQWHUEODGH FKDQQHO RI D VL[ EODGHGSURSHOOHUWXUELQHZLWKWKHXVHRID'3,9V\VWHP7KHH[SHULPHQWVHWXSDQGWKHGDWD



&RUUHVSRQGLQJDXWKRU+\GUDXOLF0DFKLQHU\/DERUDWRU\/DYDOXQLYHUVLW\$YHGHOD0HGHFLQH4XHEHF 4F&DQDGD*9$SKRQHID[HPDLOVHEDVWLHQEHDXOLHX#XODYDOFD 165

,$+5:*0HHWLQJRQ&DYLWDWLRQDQG'\QDPLF3UREOHPVLQ+\GUDXOLF0DFKLQHU\DQG6\VWHPV%UQR

SURFHVVLQJ ZLOO ILUVW EH SUHVHQWHGIROORZHG E\ D GLVFXVVLRQ DERXW WKH UHVXOWV DQG HVSHFLDOO\ WKHOHDGLQJHGJHYRUWH[   (;3(5,0(17)5$0(:25. 7KH WXUELQH PRGHO ZKLFK LV FXUUHQWO\ XQGHU LQYHVWLJDWLRQ DW WKH +\GUDXOLF 0DFKLQHU\ /DERUDWRU\ /$0+  LV D VL[ EODGHG SURSHOOHU WXUELQH 7KH LQOHW LV FRPSRVHG RI  JXLGH YDQHVDQGVWD\YDQHV$VHFWLRQYLHZRIWKHPRGHOLVVKRZQLQILJ0DQ\H[SHULPHQWV KDYHEHHQUHDOLVHGRQWKLVPRGHOLQFOXGLQJ/'9DQG3,9PHDVXUHPHQWFDPSDLJQVDVZHOODV XQVWHDG\ILYHKROHVSUHVVXUHSUREHLQYHVWLJDWLRQV%HIRUHWKHUHDOLVDWLRQRIWKHPHDVXUHPHQW FDPSDLJQ GLVFXVVHG LQ WKLV SDSHU LQIRUPDWLRQ ZHUH FROOHFWHG RQ WKH IORZ ZLWKLQ WKH GUDIW WXEHWKHUXQQHURXWOHWDQGDWWKHURWRUVWDWRULQWHUIDFH  = ; %@LQ)LJ   

C5

2SHUDWLQJSRLQW

5HODWLYH9HORFLW\DW5 î5UHI

5HODWLYH9HORFLW\DW5 î5UHI

5HODWLYH9HORFLW\DW5 î5UHI

1RUPDOL]HGFLUFXPIHUHQWLDOSRVLWLRQ

1RUPDOL]HGFLUFXPIHUHQWLDOSRVLWLRQ



1RUPDOL]HGFLUFXPIHUHQWLDOSRVLWLRQ

5HODWLYH9HORFLW\DW5 î5UHI

 5HODWLYH9HORFLW\DW5 î5UHI

5HODWLYH9HORFLW\DW5 î5UHI

>$@



2SHUDWLQJSRLQW

>%@ 

1RUPDOL]HGFLUFXPIHUHQWLDOSRVLWLRQ

1RUPDOL]HGFLUFXPIHUHQWLDOSRVLWLRQ

5HODWLYH9HORFLW\DW5 î5UHI

 5HODWLYH9HORFLW\DW5 î5UHI



2SHUDWLQJSRLQW

>&@



1RUPDOL]HGFLUFXPIHUHQWLDOSRVLWLRQ 5HODWLYH9HORFLW\DW5 î5UHI

>'@

1RUPDOL]HGFLUFXPIHUHQWLDOSRVLWLRQ

1RUPDOL]HGFLUFXPIHUHQWLDOSRVLWLRQ

1RUPDOL]HGFLUFXPIHUHQWLDOSRVLWLRQ

5HODWLYH9HORFLW\DW5 î5UHI

2SHUDWLQJSRLQW  5HODWLYH9HORFLW\DW5 î5UHI

5HODWLYH9HORFLW\DW5 î5UHI

1RUPDOL]HGFLUFXPIHUHQWLDOSRVLWLRQ

1RUPDOL]HGFLUFXPIHUHQWLDOSRVLWLRQ



>(@

1RUPDOL]HGFLUFXPIHUHQWLDOSRVLWLRQ









&U

)LJXUH7KHQRUPDOL]HGUHODWLYHYHORFLW\FRPSRQHQWVIRUFRQVWDQWUDGLXVVXUIDFHV7KHEDFNJURXQJ JUD\VFDOHUHSUHVHQWVWKHUDGLDOYHORFLW\DQGWKHYHFWRUVWKHWDQJHQWLDODQGD[LDOYHORFLWLHV

 7KHUHDUHDORWRIQRQXQLIRUPLWLHVDWRSHUDWLQJSRLQW)LUVWWKHUHLVDKLJKUHODWLYHYHORFLW\ ]RQHORFDWHGQHDUWKHWUDLOLQJHGJH ]RQH>&@LQ)LJ RIWKHVXFWLRQVLGHRIWKHEODGHWKDWLV UHODWLYHO\ FRQVWDQW DV WKH UDGLDO SRVLWLRQ LQFUHDVH ,W LV SULQFLSDOO\ GXH WR WKH KLJK YDOXHV RI WDQJHQWLDOYHORFLW\SUHVHQWLQWKLVDUHD,QDGGLWLRQWRWKLVSKHQRPHQRQDQRWKHU]RQHRIKLJK

169

,$+5:*0HHWLQJRQ&DYLWDWLRQDQG'\QDPLF3UREOHPVLQ+\GUDXOLF0DFKLQHU\DQG6\VWHPV%UQR

UHODWLYH YHORFLW\ GHYHORSV DV WKH UDGLDO SRVLWLRQ LQFUHDVHV 7KLV ]RQH LV ORFDWHG LQ WKH XSSHU SDUW RI WKH PHDVXUHPHQW DUHD QHDU WKH VXFWLRQ VLGH RI WKH EODGH ]RQH >'@ LQ )LJ  ,W LV PDLQO\FDXVHGE\WKHUDGLDOFRPSRQHQWZKLFKUHDFKHVLWVKLJKHUYDOXHVLQWKLVUHJLRQ$WWKLV SRLQWQRFRPSRQHQWGLVWLQJXLVKHVE\DVWURQJHUJUDGLHQWDVWKH\DOOVKRZLPSRUWDQWYDULDWLRQV WKURXJKWKHFKDQQHO  2SHUDWLQJSRLQW

 5HODWLYH9HORFLW\DW= î5UHI

5HODWLYH9HORFLW\DW= î5UHI

5HODWLYH9HORFLW\DW= î5UHI



2SHUDWLQJSRLQW

5HODWLYH9HORFLW\DW= î5UHI

 5HODWLYH9HORFLW\DW= î5UHI

5HODWLYH9HORFLW\DW= î5UHI

2SHUDWLQJSRLQW  5HODWLYH9HORFLW\DW= î5UHI

5HODWLYH9HORFLW\DW= î5UHI

2SHUDWLQJSRLQW  5HODWLYH9HORFLW\DW= î5UHI

5HODWLYH9HORFLW\DW= î5UHI

 5HODWLYH9HORFLW\DW= î5UHI

 5HODWLYH9HORFLW\DW= î5UHI

 

1RUPRIUHODWLYHYHORFLW\



 )LJXUH1RUPDOL]HGUHODWLYHYHORFLW\ EDFNJURXQG DQGUHODWLYHIORZDQJOHV FRQWRXUV IRUFRQVWDQW ]VXUIDFHV7KHWKUHHOLQHVUHSUHVHQWWKHFRQVWDQWUDGLXVVXUIDFHVSORWWHGLQ)LJ

 2SHUDWLRQSRLQWDOVRH[KLELWVD]RQHRIKLJKUHODWLYHYHORFLW\RQWKHVXFWLRQVLGHRIWKHEODGH ]RQH>(@LQ)LJ +RZHYHULWLVORFDWHGFORVHUWRWKHEODGHLQFRPSDULVRQRISRLQWVDQG 7KHDUHDRQZKLFKWKLVKLJKUHODWLYHYHORFLW\H[WHQGVLVDOVRVPDOOHUWKDQIRUWKHILUVWDQGWKH WKLUG FDVH 2Q WKH RXWHU UDGLDO SRVLWLRQ WKLV ]RQH KDV FRQVLGHUDEO\ GHFUHDVHG ZLWKLQ WKH

170

,$+5:*0HHWLQJRQ&DYLWDWLRQDQG'\QDPLF3UREOHPVLQ+\GUDXOLF0DFKLQHU\DQG6\VWHPV%UQR

PHDVXUHPHQWDUHD,WLVQRWHGWKDWDQLQFUHDVHRIWKHIORZUDWHLVPRYLQJWKHSHDNYDOXHWRD UDGLDO SRVLWLRQ FORVHU WR WKH KXE DQG WKDW DQ LQFUHDVH RI VSHFLILF HQHUJ\ KDV WKH HIIHFW RI VKLIWLQJ LW FORVHU WR WKH EODGH SURILOH DV VKRZQ LQ )LJ )RU RSHUDWLQJ SRLQW  WKH PDLQ JUDGLHQWDFURVVWKHFKDQQHOLVIRXQGLQWKHUDGLDOYHORFLW\EXWWKHD[LDOFRPSRQHQWDOVRVKRZV LPSRUWDQWYDULDWLRQ&RQVLGHULQJWKHWDQJHQWLDOFRPSRQHQWLWGRHVQRWYDU\VLJQLILFDQWO\RQD FLUFXPIHUHQWLDOEDVLV  9257(;&(17(5/,1(,'(17,),&$7,21

C5

$VLWLVVKRZQLQ)LJVRPHQRWDEOHYRUWLFLW\ LQWKH³=´GLUHFWLRQ YDULDWLRQVDUHSUHVHQWIRU RSHUDWLQJSRLQWDQG)LJVKRZVREVHUYDWLRQVWKDWZHUHUHDOLVHGIRURSHUDWLRQVHWXS XQGHU FDYLWDWLRQ FRQGLWLRQV LH WKH YDOXH RI VLJPD ZDV ORZHU WKDQ GXULQJ WKH 3,9 PHDVXUHPHQW $FFRUGLQJWRWKLVILJXUHWKLVKLJKYRUWLFLW\LVGXHWRWKHOHDGLQJHGJHYRUWH[ WKDWSDVVHVWKURXJKWKHPHDVXUHPHQWDUHD    2SHUDWLQJSRLQW     2SHUDWLQJSRLQW Ȧ

Ȧ

Ÿ>V@





2SHUDWLQJSRLQW



Ÿ>V@









2SHUDWLQJSRLQW



Ȧ

Ȧ

Ÿ>V@

Ÿ>V@





 )LJXUH9RUWLFLW\D[LDOFRPSRQHQWIRUD[LDOFURVVVHFWLRQRIWKHPHDVXUHPHQWDUHD)URPOHIWWRULJKW DQGWRSWRERWWRPRSHUDWLQJSRLQWDQG

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

171

,$+5:*0HHWLQJRQ&DYLWDWLRQDQG'\QDPLF3UREOHPVLQ+\GUDXOLF0DFKLQHU\DQG6\VWHPV%UQR

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³;@

3UDVDG$.6WHUHRVFRSLF3DUWLFOH,PDJH9HORFLPHWU\([SHULPHQWVLQ)OXLG   6SULQJHU9HUODJSS

>@

%HDXOLHX6'HVFKrQHV&,OOLHVFX0)UDVHU5)ORZ)LHOG0HDVXUHPHQW7KURXJK WKH5XQQHURID3URSHOOHU7XUELQH8VLQJ6WHUHRVFRSLF3,9WK,QWHUQDWLRQDO6\PSRVLXP RQ3DUWLFOH,PDJH9HORFLPHWU\0HOERXUQH$XVWUDOLD$XJXVW

>@

*UDIWLHDX[ / 0LFKDUG 0 *URVMHDQ 1 &RPELQLQJ 3,9 32' DQG YRUWH[ LGHQWLILFDWLRQ DOJRULWKPV IRU WKH VWXG\ RI XQVWHDG\ WXUEXOHQW VZLUOLQJ IORZV 0HDVXUHPHQW6FLHQFHDQG7HFKQRORJLHV  SS

>@

/HVLHXU 0 7XUEXOHQFH LQ )OXLGV )RXUWK 5HYLVHG DQG (QODUJHG (GLWLRQ 6SULQJHU 1HWKHUODQGVSS

>@

+H\HV $/ -RQHV 5) 6PLWK '$5 :DQGHULQJ RI :LQJ7LS 9RUWLFHV WK LQWHUQDWLRQDOV\PSRVLXPRQDSSOLFDWLRQRIODVHUWHFKQLTXHVWRIOXLGPHFKDQLFV/LVERQ 3RUWXJDO-XO\

>@

*UHNXOD 0 %DUN * ([SHULPHQWDO 6WXG\ RI &DYLWDWLRQ LQ D .DSODQ 0RGHO 7XUELQH &$9WKLQWHUQDWLRQDO6\PSRVLXPRQFDYLWDWLRQ-XQH

 120(1&/$785( &] &U &șURW   &șVWD  

           

1RUPDOL]HGD[LDOYHORFLW\ 1RUPDOL]HGUDGLDOYHORFLW\ 1RUPDOL]HGWDQJHQWLDO YHORFLW\LQWKHURWDWLRQDO UHIHUHQFHIUDPH  1RUPDOL]HGWDQJHQWLDO YHORFLW\LQWKHVWDWLRQDU\ UHIHUHQFHIUDPH 

Ȧ Ÿ

ș  șU  ¨ș  ;

Suggest Documents