Blar i Fakultet for ingeniørvitenskap (IV) på tittel
Viser treff 15062-15081 av 22911
-
Numerical Simulations of Sloshing and the Thermodynamic Response Due to Mixing
(Journal article; Peer reviewed, 2017)In this paper, we apply computational fluid dynamics (CFD) to study the thermodynamic response enhanced by sloshing inside liquefied natural gas (LNG) fuel tanks. An existing numerical solver provided by OpenFOAM is used ... -
Numerical simulations of staged biomass grate fired combustion with an emphasis on NOx emissions
(Peer reviewed; Journal article, 2015)In the present paper NOx emissions from biomass combustion was studied, with the objective to demonstrate the applicability of stationary computational fluid dynamics simulations, including a detailed representation of the ... -
NUMERICAL SIMULATIONS OF SUBMERGED AND PRESSURISED X65 STEEL PIPES
(Chapter, 2013)While in service, pipelines may from time to time be exposed to impact loads from anchors or trawl gear. A lot of parameters influence the behaviour of the pipeline during impact, e.g. the diameter and thickness of the ... -
Numerical Simulations of Swimming Fish
(Master thesis, 2017)A profound understanding of how a fish swims may be used to design innovative propulsion units with higher efficiency than the conventional screw propellers. The gain of such understanding may be aided by the use of ... -
Numerical simulations of the flow around single and tandem circular cylinders close to a plane wall
(Doctoral thesis at NTNU;2016:43, Doctoral thesis, 2016)In order to model the turbulent flow around cylindrical structures in various configurations, Large Eddy Simulations (LES) are used in the present work. LES utilize a highly accurate model at reasonable time-consumption, ... -
Numerical Simulations of the Turret Mooring System for Knarr FPSO in Harsh Environment
(Master thesis, 2020)Abstract will be available on 2023-07-01 -
Numerical Simulations of Viscous Flow Around Stepped Circular Cylinder
(Master thesis, 2012)A stepped cylinder could be a desired design for an offshore buoy or SPAR platform. The geometry of a stepped cylinder consists of a small diameter cylinder (d) placed on top of a large diameter cylinder (D). This master ... -
A Numerical Solution for Modelling Mooring Dynamics, Including Bending and Shearing Effects, Using a Geometrically Exact Beam Model
(Peer reviewed; Journal article, 2021)During the operation of moored, floating devices in the renewable energy sector, the tight coupling between the mooring system and floater motion results in snap load conditions. Before snap events occur, the mooring line ... -
Numerical solution of cahn-hilliard system by adaptive least-squares spectral element method
(Journal article, 2018)There is a growing interest in the phase-field approach to numerically handle the interface dynamics in multiphase flow phenomena because of its accuracy. The numerical solution of phase-field models has difficulties in ... -
Numerical solution of Navier Stokes by use of SPH
(Master thesis, 2010)Smoothed Particle Hydrodynamics is in many hydrodynamic problems a very suitable method, especially those with large deformations and free surfaces. Simulations of large impacts and multiphase flows may be a strong area ... -
Numerical Solutions of Three- Dimensional Von Kármán and Bödewadt Heat and Fluid Flow Problems
(Doctoral theses at NTNU;2018:77, Doctoral thesis, 2018) -
A numerical solver for coupled dynamic simulation of glacial ice impacts considering hydrodynamic-ice-structure interaction
(Peer reviewed; Journal article, 2021)Glacial ice features pose great threats on the safety of ships and offshore structures in the arctic. House sized bergy bits or growlers are of particular concern because of the detection capability limits of marine radars. ... -
Numerical Solvers for Transient Two-Phase Flow
(Doctoral Theses at NTNU, 1503-8181; 2013:202, Doctoral thesis, 2013)Certain numerical methods have been well developed for solving one-dimensional two-phase flow (e.g. gas and liquid) problems in the literatures during the last two decades. Based on the existing methods, the present work ... -
Numerical studies of mitral valve regurgitation
(Master thesis, 2011)Mitral regurgitation (MR) has been studied through the use of computational fluid dynamics (CFD).The ambition of the work is to improve understanding of mitral regurgitation fluid dynamics in order to improve quantification ... -
Numerical studies of particle clustering in circular cylinder wake flows
(Doctoral theses at NTNU;2022:51, Doctoral thesis, 2022)The emphasis of this thesis is to investigate how inertial point particles are clustered and dispersed in the wake of a circular cylinder with an uniform free stream. The numerical simulations that directly solved Navier-Stokes ... -
Numerical studies of viscous flow around bluff bodies
(Doctoral thesis at NTNU;2015:94, Doctoral thesis, 2015)A bluff body, i.e. an object with blunt rather than streamlined shape, exposed to external flow gives rise to a multitude of flow patterns depending on the timeand length-scales, the free-stream velocity, and the viscosity ... -
Numerical Studies of Viscous Flow Around Step Cylinders
(Doctoral theses at NTNU;2021:122, Doctoral thesis, 2021)A step cylinder consists of a small diameter cylinder (d) attached coaxially to a large diameter cylinder (D). Structures with a similar shape as the step cylinder have been extensively used in many marine engineering ap- ... -
Numerical studies of viscous flow around straight and curved tandem cylinders
(Doctoral theses at NTNU;2024:81, Doctoral thesis, 2024)The physics of flow around straight and curved cylinders in tandem is investigated by means of direct numerical simulations (DNS), for transitional and turbulent flow regimes. For straight tandem cylinders in the reattachment ... -
Numerical studies on ductile failure of aluminium alloys
(Doctoral theses at NTNU;2017:284, Doctoral thesis, 2017)Numerical modelling and simulation are becoming increasingly important for structural design and assessment, and they are essential tools for engineers facing the challenges and demands imposed by the modern society. Using ... -
Numerical studies on the dynamic behavior of a superlong curved pontoon bridge under wind and wave actions
(Chapter, 2019)Floating bridges serve as attractive solutions where classical bridge concepts are not possible. However, compared to more commonly encountered bridge concepts such as cablesupported bridges, their dynamic behavior remains ...