Change search
ReferencesLink to record
Permanent link

Direct link
Dynamic Modelling and Analysis of Submerged Floating Tunnels
Norwegian University of Science and Technology, Faculty of Engineering Science and Technology, Department of Structural Engineering.
2012 (English)MasteroppgaveStudent thesis
Abstract [en]

Investigations are performed on the capabilities of Computational Fluid Dynamics (CFD) to model a transient transcritical flow around a Submerged Floating Tunnel (SFT). The aim of this inquiry is to examine the possibility of modeling the effect of Vortex Induced Vibrations (VIV) on a circular cylinder, through a coupling between a 2D CFD simulation, and a 3D FEM analysis of the structure trough strip theory. To validate such an approach, it is essential to verify that the CFD analysis yields accurate results. A simulation has been performed on the flow around a circular cylinder with Re=3.6⋅〖10〗^6, based on the solution of the 2D Unsteady Reynolds Averaged Navier-Stokes (URANS) equations with the Realizable k-ϵ turbulence model using enhanced wall treatment. The hydrodynamic values obtained is the time averaged drag coefficient (CD,avrg), the root-mean-square lift coefficient (CL,rms), and the non-dimensional shedding frequency (St). The analysis yields a St=0.26, which is within published experimental values, in contrast to published numerically obtained results.

Place, publisher, year, edition, pages
Institutt for konstruksjonsteknikk , 2012. , 58 p.
Keyword [no]
ntnudaim:7890, MTBYGG Bygg- og miljøteknikk, Konstruksjon
URN: urn:nbn:no:ntnu:diva-18424Local ID: ntnudaim:7890OAI: diva2:565918
Available from: 2012-11-08 Created: 2012-11-08

Open Access in DiVA

fulltext(2318 kB)3595 downloads
File information
File name FULLTEXT01.pdfFile size 2318 kBChecksum SHA-512
Type fulltextMimetype application/pdf
cover(297 kB)42 downloads
File information
File name COVER01.pdfFile size 297 kBChecksum SHA-512
Type coverMimetype application/pdf
attachment(44690 kB)106 downloads
File information
File name ATTACHMENT01.zipFile size 44690 kBChecksum SHA-512
Type attachmentMimetype application/zip

By organisation
Department of Structural Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 3595 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

Total: 243 hits
ReferencesLink to record
Permanent link

Direct link