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
Evaluation of RANS turbulence models for the hydrodynamic analysis of an axisymmetric streamlined body with special consideration of the velocity distribution in the stern region
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Naval Systems.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This is a master’s thesis provided by the Swedish Defence Research Agency FOI and is written for the Center for Naval Architecture at the Royal Institute of Technology KTH. The objective is to perform a systematic simulation campaign of the flow around an axisymmetric streamlined body in order to evaluate several RANS-based turbulence models implemented in the open source CFD software package OpenFOAM. Of most interest is the low velocity zone at the stern and the wake behind the body. The results are compared with experimental flow measurements and with data obtained by LES, in order to evaluate how accurately the flow is predicted by each turbulence model. The study leads to method recommendations for this type of flows. Simulation results for two different bodies are also compared in order to investigate how the different shapes affect the flow. Also included is an overview of the turbulence modeling theory behind the RANS-methods which are employed. The results demonstrate that the turbulence models k−!,RNGk−!,k−"andk−"SST are suitable for simulation of this class of flows and provide a good prediction of the mean flow around and behind the body.

Place, publisher, year, edition, pages
2012. , 35 p.
Series
Trita-AVE, ISSN 1651-7660 ; 2012:61
National Category
Other Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-104653OAI: oai:DiVA.org:kth-104653DiVA: diva2:565743
Subject / course
Naval Systems
Uppsok
Technology
Examiners
Available from: 2012-11-23 Created: 2012-11-08 Last updated: 2012-11-23Bibliographically approved

Open Access in DiVA

fulltext(1959 kB)1890 downloads
File information
File name FULLTEXT01.pdfFile size 1959 kBChecksum SHA-512
b35893be0da886e7ced7a0a5d11f8407816dcab4d51b8314ff7c380e592588b0f6b80c07a819be4f606c75125ff1f3f4940cd8160f116af60e64ff9b94afd8c0
Type fulltextMimetype application/pdf

By organisation
Naval Systems
Other Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 1890 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: 277 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