HYDRAULICS BRANCH

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Model Studies Clear Creek Power Conduit Surge Tank

Trinity River Division Central Valley Project

January 25,

Donald Colgate

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INFORMATIONAL ROUTING

A p 9 0

F L11 I '%aew~ng Wxwutarieg BUREAU O11-RZ-C-LJAffA-T-f-09- Xiefy ThVISion of !7 i

HYDRAULIt LABORATORY NOT TO BE RC))ED iln—u FILES

powr 0012ftit, fr,4rfm 3 R r T V~'*jon_—Ce=tr&j 'VeLlAr r -t ive 1

1*1 cowpUan with yvAr SOMOW006w r*qowt 44t 4d I .*;*amber 28, 1~6f, a etuAioe bomw bum m*A* as fWl4ws-

(a) A study to deteridw Vw loostion, six*, aad "r+_*T11R a bettori of parts such that a di*dwrge of 3,2w oft will iass GPO 838856

ftiv the stwo4i$* tbroo*% tb* %wU wA inU the so%* tam vban tke wwtor surfaco In the stwid~plj* is 40 ftwt kl*mr than that in the tav& and so Aft%W that advw*ae pe"we cixAltions will "cwt exist. Theft tests Vero %We on a 1:21 oftle S*dex usi,Ag air as the toot fluid.

i tb ) A study to assure tbat aaaertable fuw *Droutlom w1u exist Awn vater splUa over the top of the &tandp1j* V*o tai* awde ta&. 11ww tests vem =WW with tbe aid of :18 sioale hydrwille aodWl.

-11w surge ts" and StWV40 'kh"in wil.16 be Mquired to 1%=* ice' i contain the f1w %&Job wcujij r*sUlt frm the '%i=jtAU*0" '1 oaA re jection f*m 'eft turbia" Ju tho pawrbouse. Rdn* 1, dis-cbarp tbratk* the turtives to 3#VM cfs, 9,01 the 7-1/2'-fact-diumter 1-04or ""*nwt4cL- is apWocimtoly 5,C* 1,0W feet ime frm tbe inth, ze at tbo reservoir to the surip t4ak oft it The Saveral lwftnawat *f the Surge took is *wvn in rupm 1.

ro"'S" 'be disebarge coofftaients 3ad vx womw* emAworas w-

ftWng to tb* parts sere studied in an sdr --aWcl (Fib ~A). 3w NW*i ~ so eaftotructed that rate of fUw *auld be mawwrod iA the 060ftit tit uWav" "daw4mtraft ~ ut Burst tLnk Cq and In the standpipt *Um the part awdfold. A4r could be fwced out three 4* the part* sinulatiag a 1cod reJection or dram in tbtrov.gh 0-e Torts slailatlug a sudden voter deowd '-hv a turbine.

"r,< ebws the ports as +AmPW.

Form DFC-11 (7-52) Bureau of Reel amation

'oft uw

1"bief A canals ftwwh

I

dim opw&Uca of Us suro took the f1W as ti at US protatyps wJU to @mM%jmwjUy aMcglaR. A wee"t or too after i load r *J*C tM witA the t*tal f1w Ot 3„200 aft aDiat lutpa the standidFe, the imtoar stwfam in fto stsnWps sill `tar ri sIng about 1.1 Zwt Sw ao*=4 vith Verb" li,000 oft pwsli4 threao the pow. 4hen t#o vats rowk" Um top of the standpipe it wri.0 I* rising ng bmt 2,02 Awt per' 660cmd &ad the flow t vm Us For" Vi ll be ebsst 21760 sfo. The vasw tAm* sa*or smMr es at. %M# ter vt

37.2 ftret lb*1aw tAmt is tie stan4,ipe. As t l* 0o tUm", wow will gpill over tb o top of t * *U*41 In *vw isavastag 9"atiti" Frith OW20011PONflasix de Maim Ow its pas Urmo tbo pis dome to tb* doax'1rs+m is differonUal beed scroas the pis until the toul flow ""nub" Mai. 1 j&U1F sups i1.t+D~f , thor. .

air 00401 OM4A Oparstod WWAr Onklu ly aftations ; s U" s *Sri** of UOU Ver* 0"0 in ich

varic" :tU mr aaoad#.t#ms wit osta bliabod and 41"barve arA pr"s. rs s . so tmtt fimMri.U" of awme cow be drum to roproment t

f1M distaribsti. UXVA&t 00 sue.

1 Me re ati.omftip Wtow►n p reasuros tbaromomt Um sywtea varied +Ma the ratios at smawats of f3.w *bar4xd. VUw from %b e rosM it caU b distrIWAad in any eambimAian Qf. ( 1) an doh the cacla it, (2) up the stssd 7e, or 3) wt armq% the pft-"

nt+mm tank. %bow the a*wUtio,w we" be six.lar but vwvweod f r1owr in opp+esita dirwUa,n. Two 4wrts (Plawme 3 and 3) love be" ftum to emsb1e drmtarwdmati mn or Ue pvomm rem.).MwtIQnehsias t0t*004 hOM In tip be" is *04 b*04 in tho VAXW to* Or kom or sssta"A f1w rotles.

ft* +100barw ea+rft" isl4 nt Op fw tie pwt walftla Vas eamprw frm 00 motion

the dim" 1 iU& ttaroAO tie

Iair aalwlemucm of wavity Ss kmad difftnmtta be Us stapApipo

and fiat surge Ua k, f of vaiw r

2

`a ! dill "Xt rAtAw thrau* t Silk' Systwo :hmaged. the 1`emIts ai. v platted IA rlawr INs 4 C.

y, tt *w of the p "Ism rwp ~"

,~,'

.. marts vas that a

difftrou sb gig a f 1w or 302M rift mt thromo UO ports* * Usk a

diseherV oosf flO*vt of 0.?'5 (rIVY* 4) the totsl T=t *row vas UtOrMlast to be 83.90 64PWO I"t. The x Oow ram 14rt diaww1 ms we sbwa an fries 7. The tests disclosed tbat s rrroo PWOSSUM 000ditiass did. ast *art ova Or SOW tba 't SUrft&W.

(Tbmw stauos Vero NWW asmuming o aomblmA disclarip of s 2W aft out 'u'cuab the powU mxA ur tboe st&* +

fUw first is the standpiye,, the waiter surf in tkt stamWye wlU be sb t 37.2 toot boles the top of the Vigo sttb 2 J60 aft %ft"lxW 0"40 t ae PMU A "W t10 thO dlf"`, *rft%W 'mss tb# sue" surft in tbo wtandgp r► *xA Viat iA the ta* WIU ;"Whaf.ly doero4eie VIU a ear"OpxAlax increwft in tit# f'law o the top of Ue standyl?s. With a 6-lm -radius Best (ft*uro 8A) the f2.cw ovw 'bet !toss va" *ling to *be aatsido sur- ft" of the pipe (?t4we 8t) =Ul the disabery rmudma ab t goo ofs Ob"o it vow spriM fro* and fall ft a a" vmWye to the vator surf&* in Ukie swop tank. As Vw free unbroken nappe taf.2s

ttue she teak eater s=IU* svx* err the a mpyo vim. very dopeodias au tba mat an. *f+l vation of the talk 'VIII w wulwm sad admit b* a l tAm ; ool- tivo or to atl v* . Yiv s mbows the f Uw 000ditims for $15 oft vith a awtivo *ouw* uvAer the name e taw stx t*̀IUW W a P%* sU*ed 'by

iftt

y Ow ~

- en to ~ *

fit

sf? 9 ""l *U

awatleas tjw strew bw* ' aft a Pmth edumbat dirrarout Wwo 0 Shown w +A* POW ~ Alah has tot 'bom va"A .

yy~~~~,, jj

s f` ssae it#~oaa O #r the to or 'fit ~.ipe With

an the wale of %he V#*&rA a pat of U! Ganow vex* ftb4 ttt tO raVIA obamp • ftoee, O"dj .Mw were uww$f sftctwy.. tba0cro x tbo shape of 'w ar e*% iow dkwood to uhlove OU44 pV61etA'ble 'frJAw.

The Up *Oomw Oetva" £ indlies toymi the Outside wall of *ba pipm,, oleVIV dowsw%A 30# It4ft Via bwI%O*A4AvA samomt to Vw =wt. us Imw put of ' lip sly dog► and bask W f240 Us IN FiSu" 12 ftur trimaWlar piers at %be treat Wit " psis ww* io+tw'ULU d to srltit it f1w wA sir aemUom err the rA*ppe (F%W* ate).

?"w wIth tms deslaw voo M-Imut y for d ry up to 4W aft and UUOM 914 oft. 100~1 WA 9W oft 00 paroowa 0o is slopi 14wUoo of the lip is cam*act rr#.0 Um faow boomw aeSative&lI*wA the stagy to olin to tho murflam MWWO as . To m=%U this +ram tow 3-iook-V 410" one % L-1 tbo lips me 45* ftto emb p r. p'14 w vii i e AmsiV faar &U "oeborSow (moo ICS). MW dimmoi of tb* tot. of tbo 0^043pe arse sb*wa is riou a U. Fib U Owe the x^U of the upper + f*Aw off' the f"m nwAo roar lvApr 4ifforamt di*aba rvo am The reoauvwWWA Aesi, p pipe cr4wt., wd the talc watw wart** vMeh wwA wit if a tatel **KU M& tUw of 3jPPW off vwm pumolug Ord t parts sad o tho top of tbo pipe.

4

FIGURE 1

156' Square

Mdx, storage Elev !926.4 Elev 1930.0 C Y_ E1eV 1920.0, ---

E l e v 1906',0 I „ Elev 19025 .-,

Res Elev 1902.0

Note Storage capacity betuleen Elevs 1827.0and 1926,0 is 975,900 cu. ff.

Elev 1827.0 - normal - operatinq VAS. for 3200 efs - through the turbines

_-44'diam surge tank

Ports - - --16' I.D. stand pipe

Elev 1713.25- . ;-IT!5'1.0 power conduit

Elev 1691.T5 >--- To power house —~- i

-* --Approx 56,000' to reservoir —4—~

PROFILE ALONG ~ of POWER CONOUIT

TRINITY RIVED 0105WN - CVP

CLEAR CREED GOWER CONDUIT SURGE TANK

General arrangemenf

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FIGURE 7

cv

90

cq Y_

ym M. abouf HALF PLAN S-B Conduif Throuqh the Ports

B f j~ ~ B

-Conduit 6"R PLAN Surge ti Tank

at r Floor

rSurqe Tank

7

Stard Pipe Elev

Pods 1.5 V

SECTION A-A

~ >- Power Conduit 3:- TRINITY RIVER DIVISION - CVP _ Power P

CLEAR CREEK POWER CONDUIT SURGE TANK

ELEVATION

INTERSECTION of CONDUIT RacornrmendQ Port Dir"o-Inslons

AND SURGE TANV, Tofa I area of ports =83.695 sq.f t,

5- 867.;

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38I - F

FIGURE H

0

HORIZONTAL DISTANCE FROM CREST - F+- 8 6 4 2 0 2 4 6 8 10 12_14 16 18

6 ~ ~ -~-----~~-r-------r°-- Area where oT a ra f io rt

4 - -- ---- ~`

-

1 p--

z-- \ _ ~,

14 1920

i LL 16

to 18 - - - ; ac► — t h s~- La

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kn 2 2 CL

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- 1,530 # Y ~—~ b

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7 i

Ld Off 28i -

> 30

815

(J rg e ~a.r► k `~ _

~ 355 i

s O.

TRINITY RIVER DIVISION — CV P

CLEAR CREEK POWER CONDUIT — SURGE TANK

Water surface profiles for flow over the top of the stand- pipe ) recommended design. Total flows 3200 cfs, remainder flows through the port.

FIGURE I?-

/a ll

N

~f

radius

ELEVATION

SECTION A-A

M I

PLAN

-'P T

12

ELEVATION

SECTION B'-B

0

vo

AL JA

~.gso IR Aeration slats 14)-

-Tria nqula r piers (4 )

PLAN

Cresf elevation 1920.0_

18'0,D,

ELEVATION

TOP of STAND PI PE

TRINITY RIVER DIVISION — CVP

CLEAR CREEK POWER CONDUIT SURGE TANK

Recommended crast for the tap of the sfand pipe

Hydraulic model scale 1:18

K.—