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Sunday, July 12, 2020 | History

2 edition of Rock scour due to falling high-velocity jets found in the catalog.

Rock scour due to falling high-velocity jets

International Workshop on Rock Scour Due to High-Velocity Jets (2002 Lausanne, Switzerland)

Rock scour due to falling high-velocity jets

proceedings of the International Workshop on Rock Scour Due to High-Velocity Jets, Lausanne, Switzerland, 25-28 September 2002

by International Workshop on Rock Scour Due to High-Velocity Jets (2002 Lausanne, Switzerland)

  • 124 Want to read
  • 18 Currently reading

Published by A.A. Balkema in Lisse, Exton, PA .
Written in English

    Subjects:
  • Scour (Hydraulic engineering) -- Congresses.,
  • Rock mechanics -- Congresses.,
  • Spillways -- Congresses.

  • Edition Notes

    Includes bibliographical references.

    Statementedited by Anton J. Schleiss & E. Bollaert.
    GenreCongresses.
    ContributionsSchleiss, Anton., Bollaert, Erik.
    Classifications
    LC ClassificationsTC175.2 .I58 2002
    The Physical Object
    Paginationxi, 263 p. :
    Number of Pages263
    ID Numbers
    Open LibraryOL22490764M
    ISBN 109058095185

    US Army Corps of Engineers CHL: Steven Hughes, PhD Scour by Waves and Currents • No analytical methods available • Scour depth increases when even a small current is added to waves • Breaking waves increase scour over scour caused by currents alone • Inverted cone shape is similar for both cases Rule of Thumb Estimate maximum scour depth using formula for currents alone. Bollaert, E. F. R., and Schleiss, A. J., b, Scour of Rock due to the Impact of Plunging High Velocity Jets Part II: Experimental Results of Dynamic Pressures at Pool Bottoms and in One- and Two-Dimensional Closed End Rock Joints: Journal of Hydraulic Research, vol. 41, no. 5, â

      Scouring = to scour is to clean or brighten a surface by vigorously rubbing, typically with detergent or an abrasive substance, such as pumice. ‘She scoured the cooker.’ Synonyms: scrub, wipe, clean, cleanse, abrade, burnish, furbish, polish, buff. Rock Scour Process Jet Hydraulics Scour Resistance of Rock Methods of Analysis Past Present Future Plunge Pool Design Summary. Analysis Techniques Impacting high velocity jet. Erosive Power of Water 0 Rate of Energy Dissipation (W/m 2).

    International Workshop of Rock Scour: Rock Scour Due to Falling High-Velocity Jets. Lisse, The Netherlands, , – Google Scholar [16] MAZIAR M., SCGLEISS A. Dynamic analysis of anchored concrete linings of plunge pools loaded by high velocity jet . concrete lining and rock. Planning and design of river flood protection measures; river hydraulics Reservoir sedimentation, physical processes including turbidity currents, technical measures for sediment removal and preventing turbidity currents Rock scour due to high velocity falling plunging jets downstream of spillways and bottom outlets.


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Rock scour due to falling high-velocity jets by International Workshop on Rock Scour Due to High-Velocity Jets (2002 Lausanne, Switzerland) Download PDF EPUB FB2

This book provides a comprehensive discussion of the newest and best in the field of rock scour assessment due to falling high-velocity jets. It comprises the papers of a workshop organized to bring together engineers and scientists from all over the world to promote the exchange of knowledge on the.

Get this from a library. Rock scour due to falling high-velocity jets: proceedings of the International Workshop on Rock Scour Due to High-Velocity Jets, Lausanne, Switzerland, September [Anton Schleiss; Erik Bollaert;]. This book provides a comprehensive discussion of the newest and best in the field of rock scour assessment due to falling high-velocity jets.

It comprises the papers of a workshop organized to bring together engineers and scientists from all over the world to promote the exchange of knowledge on the complexities of the hydrodynamic-geotechnical scour problem. The workshop covered topics. This paper presents the state-of-the-art on methods to estimate rock scour due to the impingement of plunging high velocity water jets.

The following topics are addressed: empirical formulae, semi-empirical and analytical approaches, determination of extreme pressure fluctuations at plunge pool bottoms and, finally, the transfer of these pressure fluctuations in joints underneath Cited by: Rock Scour due to falling high-velocity jets: Editor: Schleiss, Anton: Bollaert, Erik: Publisher: Balkema: Pages: Peer reviewed: Yes: Audience: International: ISBN: Event name: International Workshop on Rock Scour: Event date: Sept Event place (city): Lausanne: Event country: Switzerland: Abstract Author: Erik Bollaert, Sébastien Erpicum, Michel Pirotton, Anton Schleiss.

Scour of rock due to the impact of plunging high velocity jets Part II: Experimental results of dynamic pressures at pool bottoms and in one- and two-dimensional closed end rock joints.

Journal of Hydraulic Research: Vol. 41, No. 5, pp. Scour of rock due to the impact of plunging high velocity jets Part II: Experimental results 3 Table 1 Main characteristics of vertical plunging circular jets. Jet Jet Jet Froude Reynolds Weber Fall L/D j Pool Y/D j Jet turb. Breakup Degree of diam.

disch. veloc. number number number height depth int. length spread D j QV j F j Re j We j LY TuL. the free falling jet entrains air. formation of rock scour due to high-velocity jet The influence of pool geometry and induced flow patterns in rock scour by high-velocity plunging jets.

Book. Scour of rock due to the impact of plunging high velocity jets Part II: Experimental results of dynamic pressures at pool bottoms and in one- and two-dimensional closed end rock joints.

Journal of Hydraulic Research Crossref, ISI, Google Scholar. Melo, J.F. Reduction of plunge pool floor dynamic pressures due to jet air entrainment. In Proceedings of the Workshop on Rock Scour Due to Falling High-Velocity Jets, 25–28 September Edited by A.J.

Schleiss and E.F. Bollaert. Swets and. In Rock Scour Due to High-velocity Jets, – Switzerland: EPFL Lausanne. Proc. Intl. Workshop [Google Scholar] Bollaert, E. and Schleiss, A. Scour of rock due to the impact of plunging high velocity jets 1: Experimental results of dynamic pressures at pool bottoms and in one- and two-dimensional closed end rock joints.

Scour and Erosion AquaVision Engineering offers specific consulting in the field of scour and erosion at hydraulic structures. Examples are scour formation in natural rock or plunge pools downstream of high-head dams, or also erosion, abrasion and/or destruction of concrete linings of energy dissipation structures such as stilling basins, spillway chutes, etc.

Dr E. Bollaert co-organized the. Scour of rock due to the impact of plunging high velocity jets Part I: A state-of-the-art review By ERIK BOLLAERT and ANTON SCHLEISS, Journal of Hydraulic Research, IJHR, VolNumber 5, pp.

– Discussers: LUIS G. CASTILLO, Thermic and Fluids Engineering Department, Technical University of Cartagena, Paseo Alfonso XIII. the book “Rock Scour due to falling hi gh-v elocity jets”, published in (Swets & Zeitlinger, The Nether lands) and co - author of the USSD Bulletin “Erosion of unlined spillways”.

INFLUENCE OF ROCK SCOUR GEOMETRY ON DYNAMIC PRESSURES DUE TO JET IMPACT PEDRO MANSO ERIK BOLLAERT ANTON SCHLEISS Laboratory of Hydraulic Constructions (LCH), Swiss Federal Institute of Technology Lausanne (EPFL) EPFL-ENAC-LCH Lausanne, Switzerland The direct impact of falling jets on the riverbed downstream of high dams is often used for.

Scour of rock may occur downstream of dam spillways, as a result of the impact of high-velocity jets. The phenomenon is traditionally assessed by means of (semi-) empirical methods.

These partially neglect basic physical processes responsible for rock mass breakup. Rock Scour Due to Falling High-Velocity Jets Anton J. Schleiss, Erik Bollaert This work discusses the state of the art in the field of rock scour assessment due to falling high-velocity jets.

The scour depth also varies with the height of the falling jet. A great height would cause high kinetic energy of the falling jet (Damle et al., ). The angle of penetration of a ski-jump jet into the pool would also be important from the perspective of geometry and depth of scour hole.

Proceedings of the International Workshop on Rock Scour Due to High-velocity Jets, Lausanne, Switzerland, September Rock Scour Due to Falling High-Velocity Jets 作者: Schleiss, Anton J. (EDT)/ International Workshop on Rock Scour Due/ Schleiss, Anton J./ Bollaert, Erik 出版社: Routledge 页数: 定价: 装帧: HRD ISBN:.

International Workshop of Rock Scour: Rock Scour Due to Fa- lling High-Velocity Jets. Lisse, The Netherlands,[16] MAZIAR M., SCGLEISS A. Dynamic analysis of an- chored concrete linings of plunge pools loaded by high velocity jet impacts issuing from dam spillways[J].

Dam Engineering,20(4): [17].A scaled physical hydraulic model was constructed to determine the scour hole geometry in rock material. The main objective of the study was to determine the scour hole geometry formed in rock as a result of to an impinging jet by using a physical model and analysing the factors that cause scouring.Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link).