Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Design of aerators for prevention of cavitation – The Höljes Dam.
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Hydraulic Engineering.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Utformning av luftningsanordningar för förhindrande av kavitation - Höljesdammen. (Swedish)
Abstract [en]

Major cavitation damages can seriously endanger the stability of hydraulic structures, in worst case lead to dam failure. To remedy the effect of cavitation on spillway chutes the most common method today is aeration of the flow.

Aerators introduce air to the bottom layers of the flow, enough to prevent damages to occur in the concrete lining. The design of an aerator system is of a complex manner due to the many involving parameters such as the channel slope, ramp angle, Froude number, flow velocity.

In this report the susceptibility of the Höljes Dam to cavitate has been outlined with the result that this would occur at an extreme and most unlikely situation and remedial measures have been proposed. The design of an aerator system has been proposed as the result from theoretical research.

A physical hydraulic model to assess the efficiency of a proposed aerator design is

highly recommended.

Alternative causes to the damages observed in the spillway chute are discussed.

Place, publisher, year, edition, pages
2012. , 33 p.
Series
TRITA-LWR Degree Project, ISSN 1651-064X ; LWR-EX-12-03
Keyword [en]
Cavitation; Spillway chute; Flow characteristics; Aeration; Aerator; Stagnation pressure
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-99352OAI: oai:DiVA.org:kth-99352DiVA: diva2:541974
Educational program
Master of Science in Engineering - Urban Management
Uppsok
Technology
Examiners
Available from: 2012-07-26 Created: 2012-07-26 Last updated: 2012-07-26Bibliographically approved

Open Access in DiVA

fulltext(3049 kB)1166 downloads
File information
File name FULLTEXT01.pdfFile size 3049 kBChecksum SHA-512
85e66ac87b34e5b101bcaece195ee948f028d67c845ca06f87d02b9607dc7dad1930b0a3f29fe0448489e351b36a65d1f7fee059bc2e77a6b58f7ba777d3345f
Type fulltextMimetype application/pdf

By organisation
Hydraulic Engineering
Civil Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 1166 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 463 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf