Blar i Fakultet for ingeniørvitenskap (IV) på tittel
Viser treff 15264-15283 av 23284
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Numerical Simulation of Fracture Geomechanics: Geothermal, CCS and Petroleum applications
(Doctoral theses at NTNU;2019:370, Doctoral thesis, 2019) -
Numerical Simulation of Free-Surface Waves past Two Semi-Submerged Horizontal Circular Cylinders in Tandem
(Journal article; Peer reviewed, 2017)Two-dimensional (2D) numerical simulations are performed to investigate free surface waves past two semi-submerged horizontal circular cylinders in tandem. The 2D simulations are carried out by solving the Unsteady ... -
Numerical Simulation of Friction Losses in Tunnels with Strip Roughness
(Master thesis, 2018)To estimate friction introduced by plastering strips inside of laboratory tunnels, an equation named after Reidar Birkeland is used at NTNU. In this thesis, four different geometries with three different strip distances ... -
Numerical Simulation of Fully Nonlinear Interaction Between Regular and Irregular Waves and a 2D Floating Body
(Chapter, 2019)A fully nonlinear Navier-Stokes/VOF numerical wave tank, developed within the open-source CFD toolbox OpenFOAM, is used to investigate the response of a moored 2D floating body to nonlinear wave loads. The waveDyMFoam ... -
Numerical Simulation of Gas Coning of a Single Well Radial in a Naturally Fractured Reservoir
(Master thesis, 2012)Gas coning is the tendency of the gas to drive oil downward in an inverse cone due to the downward movement of gas into the perforations of a producing well thereby reducing oil production and the overall recovery efficiency ... -
Numerical Simulation of Hydrodynamics Around Net Meshes Using REEF3D
(Chapter, 2020)Hydrodynamics and turbulence around net meshes have drawn more and more attention because it is closely related to forces on the structures and safety issues of offshore fish farms. In terms of numerical modeling of forces ... -
Numerical Simulation of Ice-Rubble Mound Breakwater Interactions
(Master thesis, 2018)Offshore activity in energy production, fishing, shipping, and tourism is projected to increase in the Arctic and Sub- Arctic. This projected increase in offshore activity means the supporting coastal infrastructure needs ... -
Numerical Simulation of Installation of XL Monopile for Offshore Wind Turbines
(Master thesis, 2016)There has to be a significant increase in the share of power supplied by renewable energies to reduce global emission, simultaneously as the wealth is rising in the newly industrialized countries. Wind energy is one of the ... -
Numerical Simulation of Interactions between Water Waves and a Moored-Floating Breakwater
(Chapter, 2018)Floating breakwaters offer a cost-efficient alternative to common emerged rubble mound breakwaters in deep water coastal areas or harbors with poor seabed conditions. Often, simple box type structures with a suitable mooring ... -
Numerical Simulation of Low Salinity Water Flooding Assisted with Chemical Flooding for Enhanced Oil Recovery
(Master thesis, 2012)World proved oil reserve gradually decreases due to the increase production but decrease new field discovery. The focus on enhance oil recovery from the existing fields has become more interesting in the recent years. Since ... -
Numerical Simulation of Low Salinity Water Flooding: Wettability Alteration for Enhanced Oil Recovery
(Master thesis, 2010)Injection of low salinity water into the reservoir has been observed and tested in laboratories to have increased the oil recovery up to a maximum of 40 percent. Chemical and physical mechanism that modifies reservoir fluid ... -
Numerical Simulation of Monopile Vibratory and Impact Installation in Saturated Sand
(Master thesis, 2021)Installasjon av offshore monopeler ved bruk av vibrolodd er antydet å ha flere fordeler sammenlignet med den konvensjonelle metoden ved bruk av fallodd. Det er usikkerhet knyttet til anslag av aksiell og lateral bæreevne ... -
Numerical Simulation of Multiphase Pipelines
(Master thesis, 2007)The multiphase flow simulators OLGA 5 and LEDA version 1.05 are tested against experimental data and field data. Experimental data on gas-condensate flow in a high pressure flow loop (inclined pipe project), and on air-water ... -
Numerical simulation of piggyback pipelaying under current loadings
(Peer reviewed; Journal article, 2023)For piggyback pipelaying operations, current-induced force and its effect on the piggyback pipe have not been thoroughly studied. In the present study, an improved method in hydrodynamic load calculation and structural ... -
Numerical simulation of pore pressure in rock joints during pressure transient in an unlined hydropower tunnel
(Chapter, 2020)Recent experimental result shows that pressure transients of both short and long time periods; i.e. water hammer and mass oscillation; can travel into the rock mass of an unlined hydropower tunnel through rock joints. It ... -
Numerical simulation of sediment flushing in reservoirs
(Master thesis, 2018)As we saw, sediment can be a major factor in decreasing the lifespan, efficiency and profit of a hydropower plant. Countries and companies have to have countermeasures against the sedimentation, where high yields are ... -
Numerical Simulation of slug flow in a micro-channel
(Master thesis, 2007)Multiphase dynamics and characteristics of slug flow in micro channels are investigated computationally by means of advanced numerical simulation methods. Although, due to its importance in many engineering and biomedical ... -
Numerical Simulation of Solidifying Flow - Numerisk simuleringing av størking
(Master thesis, 2018)This thesis consists of deriving and testing a numerical model for convection dominated solid-liquid phase transitions. Two scientific articles represents the main body of the thesis, but a short documentation of the work ... -
Numerical Simulation of Submarine Slides in Bjørnafjorden Using Rheological Models
(Master thesis, 2019)The continuous development of the world creates the need for submarine transport and communication. Consequently, seafloor instabilities may create complications in the everyday life of humans. A sustainable design for the ... -
Numerical simulation of surge wave instability of long distance transport of multiphase flow
(Master thesis, 2018)The surge wave is an unstable flow phenomenon that may occur in the wet gas pipelines. The dramatic decrease in gas flow rate or the stopping of gas production due to other reasons would cause the liquid accumulation at ...