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Computational Fluid Dynamics (CFD) Investigations of Flow-Induced Vibrations of Two Rigidly Coupled Cylinders at High Reynolds Number
(Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2020)Two degree-of-freedom (2-DoF) flow-induced vibrations (FIV) of a single cylinder and two rigidly coupled cylinders are numerically investigated at the Reynolds number of 3.6 × 10^6. Two-dimensional (2D) Unsteady ... -
Computational Fluid Dynamics (CFD) simulation of two-dimensional(2D) cross sectional flow around twin-box girder bridge
(Masteroppgave/UIS-TN-IKM/2017;, Master thesis, 2017-06-15)Flow around a twin-box bridge with a fixed spacing between the decks has been investigated using the two dimensional (2D) Unsteady Reynolds-Averaged Navier–Stokes (URANS) equations with the k–ω Shear Stress Transport (SST) ... -
Computational Fluid Dynamics (CFD) study to optimize simulated pressure drop across liner hangers: A field trail approach to improve well integrity by optimizing ECD simulations during well cementing.
(Masteroppgave/UIS-TN-ISØP/2020;, Master thesis, 2020-06-15)Optimizing cementing parameters during the cement job is a challenging task. Accurate pre-job analysis is essential to elude breakdown of the formation to obtain a successful cement job. If the equivalent circulation density ... -
Computational fluid dynamics simulation of buoyant mixing of miscible fluids in a tilted tube
(Peer reviewed; Journal article, 2021)Buoyancy-driven flows and mixing of fluids with different densities occur frequently both in nature and as part of industrial processes within chemical and petroleum engineering. This work investigates the buoyant exchange ... -
Computational fluid dynamics simulation of flying discs
(Master thesis, 2021)This manuscript is divided in two parts. First, a comprehensive review of flight dynamics and disc-wing aerodynamics literature is presented. It discusses the aerodynamic characteristics of circular planform wings and the ... -
Computational investigation of the aerodynamic performance of reversible airfoils for a bidirectional tidal turbine
(Peer reviewed; Journal article, 2021)A reversible airfoil is an airfoil that has equal performance when the flow is reversed. Such airfoils are relevant for many different applications, including use in ventilation fans, helicopter rotors, wind turbines and ... -
Computational Statistics and Data Analysis: Robustness of the Linear Mixed Effects Model to Non-normality of Longitudinal Data.
(Masteroppgave/UIS-TN-IMN/2016;, Master thesis, 2016-06)The Linear mixed effects model is based on one of the assumptions, which is that data are normally distributed as the errors and random effects in the model are assumed to have normal distributions; but in practice, ... -
Computer assisted history matching : A comprehensive study of methodology
(Masteroppgave/UIS-TN-IPT/2013;, Master thesis, 2013-06-17)History matching is an important step in reservoir simulation study. The objective is to validate a reservoir model before it is used for prediction. In conventional way, people do history matching by manually adjusting ... -
Computer tomographic assessment of gastric volume in major trauma patients:impact of pre-hospital airway management on gastric air
(Peer reviewed; Journal article, 2020-07)Background Gastric dilation is frequently observed in trauma patients. However, little is known about average gastric volumes comprising food, fluids and air. Although literature suggests a relevant risk of gastric ... -
Computer Vision in Wind Turbine Blade Inspections: An Analysis of Resolution Impact on Detection and Classification of Leading-Edge Erosion
(Master thesis, 2023)Wind turbines, as critical components of the renewable energy industry, present unique maintenance challenges, particularly in remote or challenging locations such as offshore wind farms. These are amplified in the inspection ... -
Concave Drilling Curve
(Journal article; Peer reviewed, 2013)Drilling expenses have increased sharply in recent years. Average meters drilled per day significantly influences exploration costs. Hence it is important to understand the factors that determine this drilling metric. In ... -
Concentric cylinder viscometer flows of Herschel-Bulkley fluids
(Peer reviewed; Journal article, 2019)Drilling fluids and well cements are example non-Newtonian fluids that are used for geothermal and petroleum well construction. Measurement of the non-Newtonian fluid viscosities are normally performed using a concentric ... -
Concept design of self-contained remotely controlled running tool
(Masteroppgave/UIS-TN-IKM/2009;, Master thesis, 2011) -
Concept design of self-contained remotely controlled running tool
(Masteroppgave/UIS-TN-IKM/2009;, Master thesis, 2011) -
Concept Evaluation and Analysis of Soft-Landing System for subsea modules
(Master thesis, 2021)The offshore installation is a large process that will face several obstacles, including unpredictable ocean conditions. During the landing stage, the installation platform restricts the movement of the equipment. Furthermore, ... -
Concept evaluation of tethered station keeping system for a mono-hull floating offshore vertical axis wind turbine
(Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06-14)The objective of this thesis is to perform a concept evaluation of novel station keeping concept for offshore vertical axis wind turbines based on the well-known tension leg platform (TLP) principle. The main characteristic ... -
Concept of a FLNG vessel for the Russian Arctic shelf
(Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-06)The implementation of FLNG will introduce flexibility and mobility in the gas market. When we use pipeline transportation, the producer and the buyer are connected for decades by the created infrastructure, while in using ... -
Concept of a Pipeline Protection against Ice Ridges and Vortex-Induced Vibrations
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)The development of offshore oil and gas fields involves a few challenges concerning the pipeline on-bottom protection, particularly in the Arctic zone. In the shallow waters the ice ridges may make dangerous gouges, hence, ... -
The concept of plausibility in a risk analysis context: Review and clarifications of defining ideas and interpretations
(Peer reviewed; Journal article, 2022)The plausibility concept has gained increasing attention in recent years in risk analysis settings. A number of definitions exist, most of which interpret plausibility as an expression of uncertainty. The concept is ... -
The concept of urban scale area efficiency, with a case study of Urban Sjøfront, Stavanger, Norway
(Masteroppgave/UIS-TN-IØRP/2011;, Master thesis, 2011)This thesis focuses on area efficiency in the urban scale. It uses Urban Sjøfront in Stavanger as a case study. Area efficiency can be defined as reducing the need and use of new built form and land, through using excising ...