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Numerical and Physical Analysis on the Response of a Dam’s Radial Gate to Extreme Loading Performance
(Peer reviewed; Journal article, 2020)Maintaining the reservoir safety of large dams has considerable importance for the public where they are constructed in heavily populated and industrialized areas. The extreme hydrodynamic force caused by ground acceleration, ... -
Numerical and physical modelling of oil spreading in broken ice
(Dr. ingeniøravhandling, 0809-103X; 2002:130, Doctoral thesis, 2003)The present work focus on oil spreading in broken ice, and the content of this thesis falls into three categories: • The physical and numerical modelling of oil spreading in ice. • Ice models, and parameters describing ... -
Numerical approach for generic three‐phase flow based on cut‐cell and ghost fluid methods
(Peer reviewed; Journal article, 2019)In this paper, we introduce numerical methods that can simulate complex multiphase flows. The finite volume method, applying Cartesian cut‐cell is used in the computational domain, containing fluid and solid, to conserve ... -
Numerical approaches for thermochemical conversion of char
(Peer reviewed; Journal article, 2022)This paper gives a review of the current state of the art for numerical simulations of char conversion. In particular, it presents models that have been developed to describe the physical and chemical phenomena that ... -
Numerical approximation of conformal mappings
(Master thesis, 2010)A general introduction to conformal maps and the Riemann mapping theorem is given. Three methods for numerically approximating conformal maps from arbitrary domains to the unit disc are presented: the Schwarz-Christoffel ... -
Numerical Approximation of Temperature Distribution in Deep Water Wells
(Master thesis, 2019)Dagens metoder for Early Kick Detection ved boring av dype vannbrønner er basert på flyt målere eller aktiv volumkontroll. Det vil si at man måler netto gevinst eller netto tap av sirkulasjon på et gitt tidspunkt. Man vil ... -
Numerical aspects of anisotropic failure in soft biological tissues favor energy-based criteria: A rate-dependent anisotropic crack phase-field model
(Journal article; Peer reviewed, 2018)A deeper understanding to predict fracture in soft biological tissues is of crucial importance to better guide and improve medical monitoring, planning of surgical interventions and risk assessment of diseases such as ... -
Numerical Aspects of Flow Based Local Upscaling
(Master thesis, 2013)We start this thesis by giving an introduction to reservoir simulation and upscaling in particular. The most common upscaling techniques, including power averaging methods and flow based local and global methods [10], are ... -
Numerical assessment of a double-acting offshore vessel's performance in level ice with experimental comparison
(Journal article; Peer reviewed, 2014)In this paper a numerical model is used to investigate the level ice performance of a double-acting intervention vessel, and the results are compared with a limited set of experimental data. The icebreaking capability and ... -
Numerical assessment on a novel bio-inspired joint under complex loading.
(Master thesis, 2024)For å møte etterspørselen etter stadig større overflater i arkitektonisk ingeniør- og konstruksjonsindustri (AEC), er forskningsinnsatsen rettet mot utvikling av forskjellige teknologiske løsninger for installasjon av ... -
Numerical benchmarking of fluid–structure interaction: An isogeometric finite element approach
(Journal article; Peer reviewed, 2016)In this paper we describe and evaluate an isogeometric finite element program, IFEM-FSI, for doing coupled fluid–structure interaction simulations. We investigate the role played by employing higher polynomial orders and ... -
Numerical bifurcation for the capillary Whitham equation
(Journal article, 2017)The so-called Whitham equation arises in the modeling of free surface water waves, and combines a generic nonlinear quadratic term with the exact linear dispersion relation for gravity waves on the free surface of a fluid ... -
Numerical calculation of flow acoustic
(Master thesis, 2013)Yelling and vibration are large problems discovered by natural gas transport in the North Sea. It is believed these problems occur in flexible pipes that are used to transport natural gas. The flexible risers often called ... -
Numerical calculation of ship appendage resistance using CFD
(Master thesis, 2019)Formålet med avhandlingen er å undersøke tileggs motstanden fra en baug tunnelpropell, ved hjelp av Computational Fluid Dynamics programvare. Og for å finne en mulig måte å estimere den ekstra motstanden på. Forskningsspørsmålene ... -
Numerical characterization of the hydrodynamic damping in a circular hydrofoil cascade
(Master thesis, 2024)The growing awareness of climate change and the related environmental impacts is driving a progressive transformation in the energy market, with an increasing relevance of the role of renewable energy sources. However, due ... -
Numerical conservative solutions of the Hunter–-Saxton equation
(Peer reviewed; Journal article, 2021)In the article a convergent numerical method for conservative solutions of the Hunter–Saxton equation is derived. The method is based on piecewise linear projections, followed by evolution along characteristics where the ... -
Numerical Evaluation of Modal Properties Change of Railway Bridges during Train Passage
(Journal article; Peer reviewed, 2017)During the passage of vehicles over a bridge, both systems (vehicle and bridge) are coupled together. This coupling is generally accounted for in vehicle-bridge interaction analyses. It is also commonly acknowledged that ... -
Numerical Evaluation of Rotordynamic Coefficients for Compliant Foil Gas Seal
(Peer reviewed; Journal article, 2020)Compliant foil gas seal is one of the advanced cylindrical gas seal technologies and can be commonly used in the secondary flow system of an aero-engine. It can enhance the dynamic stability of the aero-engine by meeting ... -
Numerical Evaluation of T-stress under Mixed Mode Loading Through the Use of Coarse Meshes
(Journal article; Peer reviewed, 2018)The present paper investigates the employment of coarse meshes in evaluating the T-stress with the displacement method. Several finite element analyses have been carried out with different mesh refinements and accuracies. ... -
Numerical evaluation on parametric choices influencing segmentation results in radiology images—a multi-dataset study
(Peer reviewed; Journal article, 2021)Medical image segmentation has gained greater attention over the past decade, especially in the field of image-guided surgery. Here, robust, accurate and fast segmentation tools are important for planning and navigation. ...