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Numerical study of a Francis turbine over wide operating range: Some practical aspects of verification
(Peer reviewed; Journal article, 2020)Hydropower plays an essential role in maintaining energy flexibility. Modern designs focus on sustainability and robustness using different numerical tools. Automatic optimization of the turbines is widely used, including ... -
Numerical study of a novel procedure for installing the tower and Rotor Nacelle Assembly of offshore wind turbines based on the inverted pendulum principle
(Journal article; Peer reviewed, 2017)Current installation costs of offshore wind turbines (OWTs) are high and profit margins in the offshore wind energy sector are low, it is thus necessary to develop installation methods that are more efficient and practical. ... -
A numerical study of a size-dependent finite-element based unit cell with primary and secondary voids
(Peer reviewed; Journal article, 2021)Aluminium alloys contain various types of intermetallic particles with different sizes, such as constituent particles and dispersoids. The main mechanism of ductile fracture in these materials is assumed to be nucleation ... -
Numerical study of a well boat operating at a fish farm in current
(Journal article; Peer reviewed, 2019)Dynamic response of a well boat operating at a fish farm in current is investigated numerically. An objective is to determine the operational conditions of the well boat. In terms of the fish farm, a realistic set-up (with ... -
Numerical study of a well boat operating at a fish farm in long-crested irregular waves and current
(Journal article; Peer reviewed, 2019)The dynamic response of a coupled well boat–fish farm system in irregular long-crested waves and current is analyzed numerically in the time domain. The main purpose is to investigate the influence of the well boat on the ... -
Numerical Study of Air Flow in Air Cavities for Pitched Wooden Roofs
(Master thesis, 2020)I Norge sees ofte eneboliger og andre typer småhus med skrå tretak. Luftede skrå tretak med et lufthulrom under takets tekning er av betydning for å sikre tørre forhold for takkonstruksjonen og samtidig holde lav temperatur ... -
Numerical study of bilge-keel effect on parametric roll and water on deck for an FPSO
(Chapter; Peer reviewed, 2015)This research activity represents the logical continuation of the work documented in [1] and [2] on water on deck and parametric roll for an FPSO in regular waves. Here the same numerical method, based on a domain-decomposition ... -
Numerical study of closed rigid fish cages in waves and comparison with experimental data
(Journal article; Peer reviewed, 2021)Closed fish cages have gained increased interest in marine aquaculture. However, knowledge on the seakeeping behaviour of a floating closed cage and the influence of the contained water inside the cage are still limited. ... -
Numerical study of curved-mesh tailoring of free-surface shear profile
(Master thesis, 2019)Krummede nettinger blir ofte brukt til å endre hastighetsprofilet i testområdet i eksperimentelle anlegg. De eksisterende uttrykkene som kan brukes til å bestemme formen på nettingen, gitt strømningsforholdene opp- og ... -
Numerical study of discharge adjustment effects on reservoir morphodynamics and flushing efficiency: An outlook for the unazuki reservoir, Japan
(Journal article; Peer reviewed, 2021) -
Numerical study of ductile failure under non-proportional loading
(Journal article; Peer reviewed, 2019)This paper investigates two numerical methods for predicting the initiation of ductile failure under moderately and strongly non-proportional loading paths. Two distinct phenomena are considered as indicators for the ... -
Numerical study of fillet welds subjected to quasi-static and impact loading
(Journal article; Peer reviewed, 2017)Fillet welding is widely used in connections in civil engineering and marine structures. Thus, understanding the behavior of fillet welds under various types of loading is important, and numerical simulations can provide ... -
Numerical study of flow calming structures in hydropower plants
(Master thesis, 2021)For å forlenge livsløpet til hydrauliske turbiner er det nødvendig å minimere skader forårsaket av sedimentslitasje. En mulig løsning er å forbedre sandfanget for å redusere mengden sedimenter som når turbinene. I dette ... -
A Numerical Study of Flow Structures and Flame Shape Transition in Swirl-Stabilized Turbulent Premixed Flames Subject to Local Extinction
(Peer reviewed; Journal article, 2023)Large Eddy Simulations (LES) of turbulent lean-premixed flames of V and M-shape are presented. A simple algebraic closure with the ability to capture finite-rate chemistry effects is used for subgrid reaction rate modeling. ... -
Numerical Study of Hydrocarbon Charge Reduction Methods in HVAC Heat Exchangers
(Peer reviewed; Journal article, 2021)Required refrigerant charge in heat pump systems with propane is analyzed. Two systems are compared: The first a direct heat pump, with fin-and-tube heat exchangers, and the second an indirect system, with plate heat ... -
Numerical study of hydrogen adsorption
(Master thesis, 2012)The main objective of this thesis is to describe the transient thermodynamics during physisorption of hydrogen gas using a commercial numerical software.Simulations of thermal effects during adsorption are valuable tools ... -
Numerical study of hydrogen influence on void growth at low triaxialities considering transient effects
(Peer reviewed; Journal article, 2019)Assuming that hydrogen enhances localised plasticity, as one of the leading mechanisms proposed in the lit- erature, the void growth and coalescence are modified by local softening and ductile failure features depend on ... -
Numerical Study of Hydrogen Inhibition of Char
(Master thesis, 2015)It has been known for a long time that hydrogen in the gas phase tend to inhibit gasification of char at low and intermediate temperatures. At higher temperatures, however, there are indications that hydrogen may speed up ... -
Numerical Study of Hydrogen Inhibition of Char Gasification Using Detailed Hetero- and Homogeneous Chemical Kinetics
(Journal article; Peer reviewed, 2016)It has been known for a long time that hydrogen in the gas phase tends to inhibit gasification of char at low and intermediate temperatures. At higher temperatures, however, there are indications that hydrogen may speed ... -
Numerical study of ice-induced loads and responses of a monopile-type offshore wind turbine in parked and operating conditions
(Journal article; Peer reviewed, 2016)Offshore wind is an attractive source of renewable energy. In regions with cold climates, such as Canada, the Baltic Sea, and Bohai Bay, a good understanding of ice loads is essential to design a reliable and cost effective ...