Blar i Fakultet for ingeniørvitenskap (IV) på tittel
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Hydraulic Scale Modeling of Sediments for Pressurized Sand Traps
(Master thesis, 2018)I senere år har flere norske vannkraftverk opplevd driftsproblemer på grunn av sedimenter i turbinvannet. Dette kan føre til redusert virkningsgrad på turbin og dermed økonomiske tap. Et forskningsprosjekt på sandfang har ... -
Hydraulic scale modelling and thermodynamics of mass oscillations in closed surge tanks
(Journal article; Peer reviewed, 2015)The design and results from a hydraulic scale model of mass oscillations in a hydropower plant with a closed surge tank constructed as an underground rock cavern are presented. The results from the model test of an existing ... -
Hydraulic Scale Modelling of Flow Calming Structures for Hydropower Plants
(Master thesis, 2019)Several large hydropower plants in Norway have been upgraded with a higher installed capacity, but unfortunately, this upgrade has also brought with it operational problems because of sediments entering penstock and causing ... -
Hydraulic Scale Modelling of Pressurized Sand Traps
(Master thesis, 2024)Vannkraftverk har i flere tiår hatt store utfordringer med sedimenter. Hvis disse sedimentene kommer inn i turbinene via ulike kilder, kan det føre til alvorlige skader på turbinen. Dette kan resultere i redusert kraftproduksjon ... -
Hydraulic scale modelling of the rating curve for a gauging station with challenging geometry
(Peer reviewed; Journal article, 2019)Direct discharge measurements during flood events can be challenging from a technical as well as from a safety point of view. Therefore, flood discharges are often estimated by extrapolating a rating curve. Extrapolations ... -
Hydraulic Structures- At the Heart of 21st Century Global Sustainable Development
(Journal article, 2023)For millennia, societal progress, health and prosperous economic growth has been closely linked to development of water infrastructure. Now in the 21st century, humankind faces some immense challenges including increasing ... -
Hydraulic Transient Impact on Surrounding Rock Mass of Unlined Pressure Tunnels
(Peer reviewed; Journal article, 2023)The frequent pressure pulsations due to hydraulic transients in hydropower plants induce cyclic loading on the rock mass that may contribute to increased instances of block falls and increased risk of tunnel collapse over ... -
Hydraulics and Thermodynamics of Closed Surge Tanks for Hydropower Plants
(Doctoral thesis at NTNU;2016:20, Doctoral thesis, 2016)This work has studied the hydraulic and thermodynamics of closed surge tanks for hydropower plants. Surge tanks are applied in hydropower plants to control and reduce the acceleration forces of the water during change of ... -
Hydraulisk jekking ved høytrykksinjeksjon av berg
(Master thesis, 2016)Innlekkasje av vann er en stadig utfordring ved driving av tunnel og bergrom, da konstruksjonene normalt er plassert under grunnvannsspeilet. Vannets opptreden og bevegelse i bergmassen, avhenger av bergmassens hydrauliske ... -
Hydraulisk modellering av et vannledningsnett
(Bachelor thesis, 2020)Formålet med bacheloroppgaven er å finne svakheter i ledningsnettet til Eide Vassverk SA ved bruk av hydraulisk modellering og brannvannssimuleringer. Oppgaven er delt opp i tre hovedmål, der første del er å utarbeide ... -
Hydraulisk modellering av kraftverksdrift i Tokkeåi
(Master thesis, 2017)En todimensjonal hydraulisk modell har blitt konstruert i HEC-RAS 5.0 for elven Tokkeåi (5 km lang) i Telemark. Hovedformål for oppgaven er å vurdere graden av effektkjøring av kraftverk. Elven deler seg i flere løp, noe ... -
Hydraulisk utforming av nedløp fra gateavrenning
(Master thesis, 2015)I denne masteroppgaven er det sett på hvordan den hydrauliske kapasiteten til forskjellige rister varierer med hensyn på helning, vannføring i vegbanen, ristutforming og størrelse. Det er sett på hvordan kapasiteten beregnes ... -
Hydraulisk utforming av nedløp fra gateavrenning
(Master thesis, 2015)I denne masteroppgaven er det sett på hvordan den hydrauliske kapasiteten til forskjellige rister varierer med hensyn på helning, vannføring i vegbanen, ristutforming og størrelse. Det er sett på hvordan kapasiteten beregnes ... -
Hydro i Quatar - Læring og CSR-arbeid
(Master thesis, 2005)Denne oppgåva tek føre seg koplinga mellom Corporate Social Responsibility (CSR) og organisasjonsmessig læring. CSR er ei kjelde til usikkerheit hos leiarar, og leverer uvande problemstillingar for ein ingeniørorganisasjon. ... -
Hydro-Elastic Analysis of a Floating Bridge in Waves Considering the Effect of the Hydrodynamic Coupling and the Shore Sides
(Chapter, 2018)A new numerical method, which is based on three-dimensional (3D) potential flow theory and finite element method (FEM), is used to predict the wave-induced hydroelastic responses of flexible floating bridges. The floating ... -
Hydro-plastic response of beams and stiffened panels subjected to extreme water slamming at small impact angles, Part I: An analytical solution
(Journal article; Peer reviewed, 2019)Water impact (slamming) is a strongly nonlinear phenomenon including significant fluid structure interactions. In the case of slamming with a small impact angle between the structure and water, the coupling between ... -
Hydro-plastic response of beams and stiffened panels subjected to extreme water slamming at small impact angles, Part II: Numerical verification and analysis
(Journal article; Peer reviewed, 2019)An analytical model has been proposed for the response of beams and stiffened panels subjected to extreme flat or nearly flat water impacts in Part I of the two-part companion paper. The model aims to capture the significant ... -
Hydro-plastic slamming
(Chapter, 2019)Ships and offshore structures will unavoidably experience water impacts (slamming) through-out their service time. During slamming, the coupling between hydrodynamic pressure and the elastic structural response, termed as ... -
Hydroacoustically Aided Inertial Navigation for Joint Position and Attitude Estimation in Absence of Magnetic Field Measurements
(Journal article; Peer reviewed, 2017)When an underwater intervention vehicle is close to large metallic structures, e.g. subsea oil and gas facilities, magnetic disturbances might render magnetic field measurements biased or useless. This loss of information ... -
Hydrocarbon generation and migration from Jurassic source rocks in the northern North Sea
(Master thesis, 2012)Hydrocarbon generation and migration modelling from the northern North Sea