Browsing NTNU Open by Author "Birkevold, Jens"
Now showing items 1-4 of 4
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Divergence-free Isogeometric Methods for Flow in Porous Media
Birkevold, Jens (Master thesis, 2012)This thesis is focused on solving the Darcy flow problem using divergence-free isogeometric methods, and comparing these results to the ones obtained using traditional finite element methods with Taylor Hood elements. A ... -
Drag Forces and deformation of aquaculture cages – full-scale towing tests in the field
Gansel, Lars Christian; Oppedal, Frode; Birkevold, Jens; Tuene, Stig Atle (Journal article; Peer reviewed, 2018)Fish cages can experience strong loads due to hydrodynamic forces in the sea. Numerical models are often used to estimate drag forces on net cages, and the development and validation of such models is mostly based on ... -
Experimental study of installation procedure and volume estimation of tarpaulin for chemical treatment of fish in floating cages
Volent, Zsolt; Birkevold, Jens; Stahl, Annette; Lien, Andreas Myskja; Sunde, Leif Magne; Lader, Pål Furset (Journal article; Peer reviewed, 2017)In the salmon industry chemical delousing is done by enclosing the cage in a tarpaulin, and then mixing the chemical agent in the enclosed water volume. Correct dosage is important to obtain the wanted effect, and in order ... -
Modellforsøk med dukbasert avlusing Beskrivelse av gjennomføringen av modellforsøk i Hirtshals - Foreløpig rapport
Volent, Zsolt; Birkevold, Jens; Stahl, Annette (Research report, 2014)Det er avgjørende å ha god kontroll på volumet under en avlusing, for å kunne beregne innblanding av lusemidler, slik at en oppnår ønsket behandlingskonsentrasjon. En for høy konsentrasjon kan skade fisken, og for lav ...