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Bu grønt i Bergen
(Master thesis, 2015) -
A bubble coalescence kernel combining the characteristics of the film drainage, energy, and critical velocity models
(Peer reviewed; Journal article, 2023)A novel coalescence kernel with high predictive properties is constructed to be used within the population balance framework. The kernel includes the product of a collision frequency term and a novel binary coalescence ... -
Bubble Effects on Seismic Data caused by Seawater Temperature Variations.
(Master thesis, 2014)At the 76th EAGE Conference in June 2014, professor Martin Landrø proposed a new equation for the air gun bubble time period that includes the effect of varying sea water temperature. The work in this thesis has been to ... -
Bubble evolution and anode surface properties in aluminium electrolysis
(Journal article, 2015)One significant contribution to the anodic potential during aluminum electrolysis is the formation of CO2 bubbles that screen the anode surface. This effect creates an additional ohmic resistance as well as an increased ... -
Bubble Evolution on Different Carbon Anode Designs in Cryolite Melt
(Peer reviewed; Journal article, 2020)The anode potential has been shown to be highly dependent on anode geometry and orientation in the Hall–Héroult process. This work is an experimental laboratory scale study of the effect of anode geometry and orientation ... -
Bubble Formation and Motion in Liquids—A Review
(Journal article; Peer reviewed, 2023)In flotation, a bubble acts as a carrier for attached particles. The properties of the gas–liquid interface of the bubble are one of the main factors determining the bubble motion and flotation efficiency. Monitoring of ... -
Bubble Phenomena and Bubble Properties for Different Carbon Anodes in Cryolite Melt
(Doctoral theses at NTNU;2022:333, Doctoral thesis, 2022)This doctoral work is an experimental laboratory scale study of the effect of anode geometry, anode orientation and carbon anode material on bubble behavior and bubble properties in cryolite melt. The increased knowledge ... -
Bubble Phenomena and Bubble Properties for Horizontal and Vertical Carbon Anode Surfaces in Cryolite Melt Applying a See‐Through Cell
(Peer reviewed; Journal article, 2021)Gas bubble behavior on a carbon anode in a cryolite melt has been studied using a see-through cell. The phenomena studied have been growth, coalescence, detachment, and wetting during electrolysis. The surface orientation ... -
Bucket Foundation in Clay for OWT Subjected to Combined Cyclic Loads
(Master thesis, 2014)This thesis project investigates the bucket foundation in clay subjected to cyclic loads. The cyclic irregular loading history in this thesis was represented by the equivalent number of cycles Neq with a certain level of ... -
Buckling and geometrical nonlinear beam-type analyses of timber structures
(Doktor ingeniøravhandling;2000:56, Doctoral thesis, 2000)An existing co-rotated formulation is presented, and a consistent nonlinear 3D beam element, based on 2nd order theory, and with internal geometric stiffness, is developed for implementation in the formulation. The element ... -
Buckling and Load Shedding in Redundant Plated Ship Structures
(Master thesis, 2016)A linear Finite Element(FE) procedure developed by DNV GL as an alternative to standard design procedures for redundant plated panels has been tested and evaluated. The method is based on modifying the so-called macro ... -
Buckling and Post-Buckling Behaviour of Extruded Aluminium Panels Subject to the Combined Effects of Welding and Pitting Corrosion
(Chapter, 2023)The present study investigates the effects of pitting corrosion and welding, both independently and combined, on the buckling and post-buckling behaviour of extruded aluminium panels. For this purpose, a finite element ... -
Buckling capacity of simulated patch corroded tubular columns – laboratory tests
(Peer reviewed; Journal article, 2019)This paper presents the experimental test results for the buckling capacity of tubular columns exposed to simulated unsymmetrical patch corrosion damage. These tests were performed to investigate how the results of these ... -
Buckling due to external pressure of a composite tube measured by Rayleigh optical backscatter reflectometry and analyzed by finite elements
(Journal article; Peer reviewed, 2018)There is a growing interest in replacing steel tubes that operate in high pressure and high temperature environments with composite tubes. Such applications can include drilling risers and drill strings for the offshore ... -
Buckling due to External Pressure of Tubes Measured by Rayleigh Optical Backscatter Reflectometry.
(Master thesis, 2017)This master s thesis should focus on measuring the buckling suffered by tubes from external pressure. The technique to be studied, is Rayleigh optical backscatter reflectometry (OBR), which through swept wavelength ... -
Buckling initiation in layered hydrogels during transient swelling
(Journal article; Peer reviewed, 2019)Subjected to compressive stresses, soft polymers with stiffness gradients can display various buckling patterns. These compressive stresses can have different origins, like mechanical forces, temperature changes, or, for ... -
Buckling of composite Cable: Simulation and physical testing of buckling of the composite cable inintervention operations within a production tubing
(Master thesis, 2011)Recent advances in drilling technology have enabled wells reaching up to 10 km and beyond. Conventional intervention technology has limitations when reaching into the high deviated and long horizontal sections of these ... -
Buckling of cylindrical members with respect to axial loads
(Master thesis, 2014)Managing technology and taking advantage of the opportunities to further development is essential to ensure increased hydrocarbon recovery and barrier security for upstream energy companies. Interwell is a well intervention ... -
Buckling of Cylindrical Shells with a Granular Core Under Global Bending: Strength Gains and Imperfection Sensitivity
(Master thesis, 2014)Thin cylindrical shells are commonly employed in civil and structural applications in which the dominant loading condition is global bending. In applications such as wind turbine towers and offshore piles, the design of ... -
Buckling of hollow aluminum columns
(Master thesis, 2017)This thesis studies the behaviour of axially loaded circular hollow cylindrical columns in aluminium and is written as a part of the project Design of power pylons in aluminium customised for automatic production . The ...