Blar i NTNU Open på tittel
Viser treff 65134-65153 av 101211
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Numerical solution of partial differential equations in time-dependent domains
(Master thesis, 2008)Numerical solution of heat transfer and fluid flow problems in two spatial dimensions is studied. An arbitrary Lagrangian-Eulerian (ALE) formulation of the governing equations is applied to handle time-dependent geometries. ... -
Numerical Solution of Stochastic Differential Equations by use of Path Integration: A study of a stochastic Lotka-Volterra model
(Master thesis, 2011)Some theory of real and stochastic analysis in order to introduce the Path Integration method in terms of stochastic operators. A theorem presenting sufficient conditions for convergence of the Path Integration method is ... -
Numerical solution of the dynamics of director fields in nematic liquid crystals
(Doctoral thesis at NTNU;2015:303, Doctoral thesis, 2015)Since their discovery in the late 1800s, liquid crystals have become an important part of the technology of the modern world. As a consequence the study of anisotropic liquids in general, and liquid crystals in particular, ... -
Numerical Solution og Coupled CFD Problems by the Domain Decomposition Method
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:102, Doctoral thesis, 2004)In this thesis we look at the efficient numerical solution of two complex multi-physics problems which both have very important applications. The first problem is related to the numerical simulation of extrusion of aluminium. ... -
Numerical solutions of stochastic partial differential equations
(Doktoravhandlinger ved NTNU, 1503-8181; 89, Doctoral thesis, 2002)The main part of this thesis is devoted to the analysis of stochastic partial differential equations of Wick-type. In particular, we study numerical approximations of solutions to boundary value problems for such equations. The ... -
Numerical Solutions of Three- Dimensional Von Kármán and Bödewadt Heat and Fluid Flow Problems
(Doctoral theses at NTNU;2018:77, Doctoral thesis, 2018) -
Numerical Solutions of Traffic Flow on Networks: Using the LWR-Model and the Godunov Scheme
(Master thesis, 2014)This paper shows how to create a simulationtool for traffic flow in a network using the Lighthill--Witham--Richards model and the Godunov scheme. First some basic rules about conservation laws are described and how to solve ... -
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 Supernova Remnants
(Master thesis, 2013)Supernovae are very luminous events, on the scale of entire galaxies, and deposit mass and large amounts of energy in to the surrounding interstellar medium. In this workthe effect of a supernova on the surrounding medium ... -
Numerical studies of the scattering of light from a two-dimensional randomly rough interface between two dielectric media
(Journal article; Peer reviewed, 2016)The scattering of polarized light incident from one dielectric medium on its two-dimensional randomly rough interface with a second dielectric medium is studied. A reduced Rayleigh equation for the scattering amplitudes ... -
Numerical studies of the transmission of light through a two-dimensional randomly rough interface
(Journal article; Peer reviewed, 2017)The transmission of polarized light through a two-dimensional randomly rough interface between two dielectric media has been much less studied, by any approach, than the reflection of light from such an interface. We have ... -
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 ... -
Numerical studies on wave forces and moored ship motions in intermediate and shallow water
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:238, Doctoral thesis, 2012)Wave forces and motions of a moored ship in intermediate and shallow water depth are investigated numerically in the present thesis. The studies are carried out in the framework of potential flow theory. Three numerical ...