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PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON HYDRAULICS OF DAMS AND RIVER STRUCTURES, 26—28 APRIL 2004. TEHRAN, IRAN

F DR!TSH UBRARY

CCUMEN SLJPP[y CENTRE

13 MAY 2009 CONFERENCE

Hydraulics of Dams and River Structures

NDEXED

Edited b’

Dr. Farhad Yazdandoost K. V Toosi L!,iiversitv o/ Tochno/oc.v, Tohean, Iran

Dr. Jalal Attari Power and Uiier (

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2004 Taylor & Francis Group plc. London. UK ill rithts reserved ,Vo part of this publication or the information contained herein mar he repmduced, els’ctmnic, mechanical, hr ii, ‘j in a retrieval si’s/cm or Iron s,nitted in aol’ form or h our means, the publisher permission Ii’om iiriltc,i prior oil hour h is a otri,it rei to’s ing or oihs’ru’ise,

lltoo,o all an o taksn to nsur the inul,! iti and qualits of thi, j ublu afion and th infoi motion fu?r am’ daniace io properts’ or ‘10 ‘10 o’spon.s ibiliti is ass ,i,ned isv Ihi publishers nor the author ,nra,ne’d herein the information or oust puhitcanon this of or ioe operation 115 11 sisnlt of I’ssbliahs’d by’ AA, l3alkema Publishers, a member ol’Taylor & Francis Group plc wwshalkcana,n1 and ‘s wwiandl’couk /\

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HvdraRics of Dams aria River Structures Yazdandoost & 4 (tar, teds) 2004 Thy,r & Era, c/s Group. London iSBN 90 5809 632 7 --

LiNe of contents

lx I ut I: fltdraulie

5t,iutzires

fir water flows Sir \sater flows md iv ci rolooy I / ( 11(1)1St/I ic-aeration of a

1

in

water engtneenng and hs draulic structures. I3aste processes

diversion

‘lig. t Kelir’,: Pt

tunnel

too

larve-scale hydroelectric scheme

17

I4IA,iri & IL-K. il/ncr

ce--suridee aeration n dani break sva es: an es peritnenta I stUdY IL

/ttii’oi

\cs model nvestlgattons on two-phase chute flow Is Isiviiict: Wi-I. linger & /1.-K, Is//nor

aluation of incipient-aeration point on spillways

43

I -Stoat’ & :1/. )irs/

I iotnkc 01111 rtuiletv Sir entrainment at (jun Dam intake operatlnv at low heads I f,iiii//lii, 4 lao ‘am’ & ( (‘moist ‘.

i) ( ‘1-1) niodelng—insesrim.ratiott 01 potential surtex tiormation at the intakes aruaehm Posserhouse If us iii,,, i., l?ojas-.SS 1/, noa,iu, 14, Ri ‘s ( 4 hanoi Numerical unsteady floss model simulation during the slutee closure of (‘amuaehi Darn I hlawano, C. ( astro, 1. licndes & K. Islart/,iez YacyretiI 1)atn: spillssays modifieation to reduce total disSol\ ed oases concentrations

downstream of’ the dam if) Bun Iito,’a & (‘-1. l’iitt’u

a new war lsdi’oinatrmx /1 I:,y,,ir cs I: Keinhe,’tr llts/oelm’,uiinic

to

eenerate hydropower

/01(05

I irpu lse was es Irons laboratory scale to inea—tsunamis WI! I/a gci; flit. Lriic & -i. /iisofe/

Lxtreine wave transients in reservoirs, their characteristics and interaction with dams Ii., (inc/is/ani, 4. flu/wi; (it. KouIiIas & (L TIsiao-haraib’ 1)vnanuc pressure fluctuatioits at rcal-lihc plunoe pool bottoms S him I? BnU,icii P 1 i/au (

11)9

procedure to evaluate d namic uplift \ n plunge pools P. H?. Bo//uert

01

concrete linings or rock blocks

Instantaneous pressure field on a submerged jump stilling basin 5,4. Lopardo, Cl, futtoe MC. Lopurdo & IM. (,cudo

133

\peets ol vibrations and tatigue of materials related to coherent structures 01 niaeroturbulent flows RI Lopurdo. (‘I. Pinoi: .t 11. Cusui/o & St. C. Lopurdo

Scale effct on pressure tiuctuations over sills in stilling basins JJ Ber:i, E. Lureuo, S. Mum t?rCtti & E. O,si

147

Analysis of the air rubber dam using “ANSYS” Ii 5frvuv,-Iuiiron,i. ‘I 11. .Vui’thI & 1.11. [tori

157

4. Ene’:g’t drv.siputors Plunge pool scour in prototype and laboratory S. Pug/lure, WI’!. [luger & IL-P.M/nor Experimental investigations on high—velocity jet characteristics and its influence on plunge pool rock scour RI. .tlunNo, P. FR. Bo//aeri & .4.1 Schlciss

165

1 73

Etfct of sill arrangement on maxinnim scour depth DS of abruptly enlarged tilling basins ‘f .M.A’egrn Energy dissipation and hydrodynamic fbrces of aerated flow over macro-roughness linings for overtopped embankment dams 1ndre.J’fluios. .1 -t &o/lut & .4.J.St’/i/efvs

I 59

l’xperiinental study of energ loss at drops FLS!ii.siri’i—,Iu/imoii, I’, i/must & ‘14. B/na

107

Dam safty: the usc of guidance documents for the training of Inspecting Engineers I?. Freer

205

.

f. I?e.veri’oir ‘i0dj!je,1ldiiUil Impacts of Sanmenxia Dam and management strategtcs JIb & 7. ) lJbnt

2I3

New approach in determining useful life of reserxoirs IS. f’oh, RH, Loie/ess & If1. Sivum

229

Fhe use of labyrinth weir in a reservoir hushing system .11/ /.oili’.c & IS. hoh

237

.

Niititerical and physical modelling concerning the removal of’ sediment deposits from ccr\ irs II, S hotter/c/n, .1!. Th’uhu,’r & F i\nne: (ionzule: \ pplication of fine sediment behavior to sedimentation management in

\iiwa I )am, .lapan ft I mode, 5.1. Okuoo & C )bkomori If

)

of escroir sedimentation due to turbidity currents by technical measures lit’ & tI \(ii/oe,,s

245

ti *pprcd spi1stvs

273

tuergy dissipation along stepped spillways ti Iülcntin, PU kblkar’ & H.-E. .Whsor Velocity and pressure field in skimming flow in stepped spillwetys I. Imador. AL Linchex Junv 4 Dolz F Vdnchez-7’mNeque & ./ Puenas in Siepped spillways lbr embankment dams. Review. progress and development tnerflow hydraulics It C hanson if CA. Gonzalez flirt

279

287

2: River Sirusiun’s

7. Scouring and sedinwaitation annind stnw.ures Recent views on the origin of river meandering and braiding

297

us. )kdhsi

lime-dependent local scour at piled bridge Ibundations U. Olivetti, .4. Rnssi ct Wit ilagc’r Time evolution of scour at comparatively long abutments CS’tS Fuel it .4.11 Cardoso Local seour downstream ol’grade control structures C Adduce’, tI La Ron,, f 1? title

305

Scouring profile at channel junction .s:si. BuiyIsei. .1. Xazari 4 .4.R. Poem!

327

311 319

8. •Vumerieal approcuIwc iss ktdnwLvnarnkw n/river flow ns An improved implicit solution for the NV dimensional shallow water equatio using unstructured grids S (Console & IC Bechteler surtbce A fully mesh-less l.agrngian numerical method for prediction of free water I. Fsrhwli 4 8. .itak-lshsiani Numerical study of flood routing in compound channels .s:a. .4youkadeh & .1. Lahiri A finite volume method lbr sols ing SWE in rivers on complex topographies 1). Fwtrhi & iL-& .tiinesr weirc Application of a Boussinesq-type equation to flow over trapezoidal profile Fenton .11.). n & Zerihu T ynamics of three-dimensional density currents lydrod I & Fisrsccahadi .

9. River response in hydraulic sinwnsres Hxperimental analysis on thc hydraulic efficiency of mudflow breakers f. .1rnsanlni. C Dairi. Della Pasta, St Lanhc: L. Rampctnelll & 11. Rljghc’ui Sub-critical flow in open channel junction .1. &‘hrangi. Sit. &nhei & fR. I)aemi Boundary shear stress distribution in a V-shaped channel It Slohan,madi & D. 1K Knight

335 345 353 361 369 377

385

•

VII

393 401

10 [Jvcltoinfin’maiic

a/)[)/W(ItiOflS

(ardi If Bay harrage and n anaging the impounded ss ater quality if. I. /il/QO1i&?i