Blar i Fakultet for ingeniørvitenskap (IV) på tittel
Viser treff 10466-10485 av 23088
-
Hydrodynamics of non-circular bluff bodies
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:302, Doctoral thesis, 2011)The present doctoral thesis is devoted to investigate and study the complex three-dimensional wake flow dynamics from different types of non-circular bluff bodies. The bluff body configuration considered in this work is ... -
Hydrodynamisk studie av en 2D geometri lik fisk under bevegelse
(Master thesis, 2019)Denne masteroppgaven viser resultater fra simuleringer av en NACA0012 foil i statiske og bevegeligetilfeller. En innledende studie har hatt som formål å simulere en statisk foil og å få til resultatertilsvarende det som ... -
Hydrodynamisk studie av flytende vindturbiner i ekstreme forhold
(Master thesis, 2019)En økende etterspørsel etter fornybare energiressurser har støttet opp under nye studier og videre utvikling av offshore flytende vindturbiner på dypt vann. Utfordringer knyttet til denne teknologien er sterk vind og høye ... -
Hydrodynamiske beregninger med bølgeoverflater
(Master thesis, 2011)Innledningsvis ble noe av det teoretiske grunnlaget for oppgaven gitt. De viktigste antagelsene var at strømningen er isotermisk og at fluidene er antatt å være inkompressible. Videre er det gått igjennom hvodan man setter ... -
Hydrodynamiske beregninger vha GPU
(Master thesis, 2010)Om man skal gjøre prediksjoner av hydrodynamiske egenskaper til større marine strukturer i dag, er den vanligste måten fremdeles modellforsøk, empiri og lineærteori. Viskøse CFDsimuleringer ved hjelp av RANSmetoder har ... -
Hydrodynamiske utfordringer av flytende vindturbiner i grunnere dybder
(Master thesis, 2019)Idag er alle flytende vindturbiner installert på dypt vann(>100 m). Nærhet til kyst og tilgjengelige områder, gjør derimot også installasjon på vanndybder fra 50-70 m lønsomt. Men, ved denne vanndybden oppstår det tekniske ... -
Hydroelastic Analysis of Flexible Wedges
(Master thesis, 2013)This thesis presents a simulation method for analyzing the coupled water entry problem of elastic bodies. The water entry problem is investigated using the software STAR CCM+ for computational fluid dynamics and Abaqus for ... -
Hydroelastic behaviour of a structure exposed to an underwater explosion
(Journal article; Peer reviewed, 2015)The hydroelastic interaction between an underwater explosion and an elastic plate is investigated num- erically through a domain-decomposition strategy. The three-dimensional features of the problem require a large ... -
Hydroelastic response of a flexible spar floating wind turbine: Numerical modelling and validation
(Journal article; Peer reviewed, 2023)This study examines the hydroelastic response of a large floating wind turbine (FWT) through coupled numerical analysis. Four numerical models with different levels of complexity in the hydrodynamic and structural modelling ... -
Hydroelastic response of a submerged structure to an underwater explosion
(Chapter, 2014)The use of composite structures in offshore engineering has revamped the problem of Fluid Structure Interaction (FSI) during underwater blasts because they enhance the FSI effect and increase the shock resistance of ... -
Hydroelastic response of concrete shells during impact on calm water
(Peer reviewed; Journal article, 2023)Many ocean structures located offshore are supported by large vertical concrete columns. High and steep storm waves – in the process of breaking – may induce large local slamming loads on these columns. The present work ... -
Hydroelastic slamming response in the evolution of a flip-through event during shallow-liquid sloshing
(Journal article; Peer reviewed, 2014) -
Hydroelastic slamming response in the evolution of a flip-through event during shallow-liquid sloshing
(Journal article; Peer reviewed, 2014)The evolution of a flip-through event [6] upon a vertical, deformable wall during shallow-water sloshing in a 2D tank is analyzed, with specific focus on the role of hydroelasticity. An aluminium plate, whose dimensions ... -
Hydroelasticity analysis of a vessel-shaped fish cage under incident, diffraction and radiation wave fields
(Peer reviewed; Journal article, 2023)Vessel-shaped fish cages are promising large aquaculture structures developed in recent years, with an overall length of nearly 400 m. In this paper, a coupled hydroelasticity model of a vessel-shaped fish cage is used to ... -
Hydrogen and Wet Gas Compressor Analysis
(Master thesis, 2020)Verdens energiproduserende industri står overfor flere utfordringer i sin søken etter å minimere ut- slippene av drivhusgasser. Nyvinninger i lav- og nullutslipps energiproduksjon og forventninger om videre innovasjon ... -
Hydrogen as a Maritime Fuel – Can Experiences with LNG Be Transferred to Hydrogen Systems?
(Journal article; Peer reviewed, 2021) -
Hydrogen assisted crack growth in iron: a simulations approach
(Doctoral theses at NTNU;2021:32, Doctoral thesis, 2021)Hydrogen enhances crack growth, limiting the lifetime of industrial components. Despite the abundance of research into hydrogen enhanced crack growth and its proposed mechanisms, none of the models can explain all the ... -
Hydrogen diffusion in C 1 ′ phase clathrate hydrate
(Peer reviewed; Journal article, 2023) -
Hydrogen Embrittlement as a Conspicuous Material Challenge─Comprehensive Review and Future Directions
(Peer reviewed; Journal article, 2024)Hydrogen is considered a clean and efficient energy carrier crucial for shaping the net-zero future. Large-scale production, transportation, storage, and use of green hydrogen are expected to be undertaken in the coming ... -
Hydrogen embrittlement effect observed by in-situ hydrogen plasma charging on a ferritic alloy
(Journal article; Peer reviewed, 2018)To study the hydrogen embrittlement (HE) effect, a novel in-situ slow strain rate tensile test together with in-situ hydrogen (H) charging by H-plasma was conducted in an environmental scanning electron microscope (ESEM). ...