Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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
Numerical modeling of a slotted flip bucket spillway system – The Shibuya Hydropower Project. 
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Hydraulic Engineering.
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Hydraulic Engineering.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Numerisk modellering av ett skidbacksutskov i Shibuya vattenkraftsystem. (Swedish)
Abstract [en]

CFD is today a big part of the design process in hydraulic engineering and is more economical and time efficient than traditional scale models. But, there are still issues concerning the agreement with scale models in large and complex geometries.

In this degree project a high head, five channeled, slotted flip bucket spillway system is analyzed with the CFD software FLUENT and compared with existing scale model results.

The sought hydraulic parameters in each channel were the discharge capacity, the pressure distribution and the throw distance from the flip buckets.

The discharge capacity and pressure distribution was practically equal for all five channels and only the throw distance from Channel 1 deviated from the others. The agreement with data from the scale model is quite low.

The biggest error sources behind the bad agreement may depend on the lack of computational power which led to bad choice of cell size, model delimitations and simplifications.

CFD models can easily be built up by people without experience in hydraulics which can lead to fatal errors when building up the model and interpreting results. Hence, long experience in CFD or verification of the numerical results with several different hydraulic parameters is the only way to guarantee qualitative results from CFD modeling.

Place, publisher, year, edition, pages
2011. , 20 p.
Series
TRITA-LWR Degree Project, ISSN 1651-064X ; LWR-EX-11-06
Keyword [en]
Computational fluid dynamics, FLUENT, VOF, Open channel flow, Slotted flip bucket spillway, Discharge capacity
National Category
Water Engineering
Identifiers
URN: urn:nbn:se:kth:diva-96227OAI: oai:DiVA.org:kth-96227DiVA: diva2:529767
Subject / course
Hydraulic Engineering
Educational program
Master of Science in Engineering - Urban Management
Uppsok
Technology
Supervisors
Examiners
Available from: 2012-05-31 Created: 2012-05-31 Last updated: 2012-05-31Bibliographically approved

Open Access in DiVA

fulltext(3025 kB)862 downloads
File information
File name FULLTEXT01.pdfFile size 3025 kBChecksum SHA-512
dd6cc6f40508e647a538e93b2e844f48d58c34598013784c9a9df6a39abf9418956f2d00808898efa20c18782b2be7dbf1fd74c0cf8bb303c17f7bbaad881de5
Type fulltextMimetype application/pdf

By organisation
Hydraulic Engineering
Water Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 862 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: 404 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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