Browsing Institutt for marin teknikk by Title
Now showing items 1421-1440 of 3431
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Flexible Pipeline for LNG Offloading System
(Master thesis, 2013)A theoretical description of the flexible riser has been presented with emphasis on cryogenic inner bore fluid flow. A description of choice of material and cross-sectional design with respect to cryogenic flexible pipes ... -
Floating Hatchery for Growth of PostSmolt Salmon by using Recirculating Aquaculture System
(Master thesis, 2020)Norge er per dags dato verdens største produsent av atlantisk laks, noe som gjelder allerede før Regjeringens planer om å femdoble produksjonen er tatt i betraktning. Denne målsetningen gjelder dog innen 2050, og for at ... -
A floating membrane solar island study
(Chapter, 2022) -
Floating Production in general, and a Parameter Study of a Flexible Riser for the Goliat FPSO in specific
(Master thesis, 2017)A floating production system (FPS) consists of a floating structure, a mooring system, anchors and risers. Such systems enable production for larger ocean depths. Risers are vertical pipes used for transportation of ... -
Floating spar optimization: A constraint set investigation for the use of simulated annealing for substructure optimization
(Master thesis, 2022)Med det økende behovet for offshore vindutnyttelse settes det opp en forskning som tar sikte på å utvikle et foreløpig designverktøy. Innledningen starter med bakgrunnsinformasjon om hvilken rolle flytende vind vil spille ... -
Floating wind turbine optimization via surrogate modelling
(Master thesis, 2023)In recent years, the interest in deep-water wind energy projects has drastically increased, driven by the considerable wind resource in deep-water locations. In such locations, floating wind turbines are more economically ... -
Flow Around Curved Tandem Cylinders
(Peer reviewed; Journal article, 2022)The flow around curved tandem cylinders of equal diameter has been investigated for the first time, by means of direct numerical simulations. A convex configuration was used. The nominal gap ratio was L/D = 3.0 and a ... -
Flow over a single shallow dimple
(Peer reviewed; Journal article, 2024) -
Flow past porous cylinders and effects of biofouling and fish behavior on the flow in and around Atlantic salmon net cages
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:312, Doctoral thesis, 2013)Norwegian salmon aquaculture has experienced a tremendous growth within the past decades and Norway is today the biggest salmon producer in the world. The growth of aquaculture production was enabled by technological ... -
Flow patterns in a steady lid-driven rectangular cavity with an embedded circular cylinder
(Peer reviewed; Journal article, 2020)A detailed investigation of the flow in a steady lid-driven cavity of depth to width ratio 1:2 containing a circular cylinder is provided. Three different Reynolds numbers (based on the lid velocity and cavity depth) of ... -
Flow topology in the gap and wake of convex curved tandem cylinders
(Journal article; Peer reviewed, 2023)Flow around curved tandem cylinders in the convex configuration has been studied by means of direct numerical simulations, for a Reynolds number of 500 and a nominal gap ratio of 3.0. Spanwise variation of flow regimes, ... -
A flow-through imaging system for automated measurement of ichthyoplankton
(Peer reviewed; Journal article, 2022)Microscopic imaging and morphometric measurement of fish embryos and larvae is essential in environmental monitoring of fish populations and to evaluate larvae development in aquaculture. Traditional microscopy methods ... -
Fluid flow in steady and oscillatory lid-driven square cavities
(Peer reviewed; Journal article, 2017)This paper presents numerical simulations of steady and oscillatory lid-driven cavity flow at different Reynolds numbers with a fixed aspect ratio of 1:1. A projection method (P2 pressure correction method) is applied to ... -
Fluid Structure Interaction Analysis of Abnormal Wave Slamming Event
(Master thesis, 2021)Offshore-konstruksjoner er utsatt for risikoen med voldsomme hydrodynamiske slagkrefter fra brytende bølger eller nær brytende bølger. Beregning av belastningen fra disse hendelsene har vist seg å være utfordrende på grunn ... -
Fluid Structure Interaction Analysis of Abnormal Wave Slamming Events
(Master thesis, 2018)In critical sea states, slamming wave loads may cause severe structural damage to marine structures. The slamming loads are associated with fluid-structure impacts with high pressures and short durations. The structural ... -
Fluid Structure Interaction Analysis of Abnormal Wave Slamming Events
(Master thesis, 2022)I ekstreme sjøtilstandar kan bølgeslag påføre marine konstruksjonar store deformasjonar. Bølgeslag påfører konstruksjonen høge trykk med store variasjonar i tid og stad. Samankoplinga mellom hydrodynamiske laster og ... -
Fluid-structure-interaction analysis of an ice block-structure collision
(Journal article; Peer reviewed, 2015)Due to climate change, production and transportation routes in Arctic regions are becoming more prevalent. When operating in Arctic waters, there is a significant risk of high energy encounters with smaller ice masses such ... -
Flytebro med nytt forankringssystem
(Master thesis, 2013)Hensikten med denne oppgaven er å evaluere et nytt flytebro konsept for Sognefjor- den. Flere grunnleggende design har vist seg å være hensiktsmessige og gjennom- førbare, og konseptet med forankret kunstig sjøbunn inkludert ... -
Foil Motion Control av høyhastighetskatamaraner
(Master thesis, 2019)Skip som opererer ved høye hastigheter utsettes regelmessig for kraftige bølgeinduserte belastninger og vibrasjoner forårsaket av store bevegelser og akselerasjoner. Et neddykket foilsystem kombinert med en kontrollalgoritme ... -
Force actuated real-tme hybrid model testing of a moored vessel: A case study investigating force errors
(Journal article; Peer reviewed, 2018)This paper presents a study where real-time hybrid testing is used to emulate a moored barge. The barge is modelled physically while the mooring forces are simulated numerically and actuated onto the physical substructure. ...