Browsing UiS Brage by Title
Now showing items 12121-12140 of 18887
-
Numerical investigation on blast-induced rock fragmentation with different stemming structures
(Peer reviewed; Journal article, 2023-09)Stemming is one of the main concerns in blast of rock engineering due to its impact on explosion energy consumption and rock excavation performance. In this study, blast-induced rock fragmentation under different stemming ... -
Numerical investigation on rock fragmentation under decoupled charge blasting
(Peer reviewed; Journal article, 2023-05)Blasting using decoupled charge is extensively applied in rock excavation and rock fragmentation. In this study, the rock fragmentation induced by blasting using decoupled charge is investigated by combined finite element ... -
Numerical Investigation on the Vortex-Induced Vibration Effects of a Deep Sea Mining Riser
(Masteroppgave/UIS-TN-IKM/2017;, Master thesis, 2017-06-14)In recent times, the deep sea mining industry has attracted growing attention globally as it targets mining activities in deeper waters of up to 6,000 m depth. Many of the technologies used in deep sea mining have been ... -
Numerical investigations of flow around subsea covers at high Reynolds numbers
(Peer reviewed; Journal article, 2021)Two-dimensional (2D) numerical simulations of flow over wall-mounted rectangular and trapezoidal ribs subjected to a turbulent boundary layer flow with the normalized boundary layer thickness of δ/D = 0.73,1.96,2.52 (D is ... -
Numerical investigations of pipe flow downstream a flow conditioner with bundle of tubes
(Peer reviewed; Journal article, 2023-01)Flow conditioners are widely utilized in pipeline systems to improve the precision of flow rate measurement in the pipeline systems of the offshore and subsea oil and gas industry. There is a lack of knowledge about the ... -
Numerical investigations of vehicle collisions and explosions in tunnels
(Master thesis, 2022)Tunnels perform a crucial role when it comes to the transportation system. Because of the possibility of an explosion occurring in the structure, either due to terrorism or an accident, it is important to take it into ... -
Numerical Investigations on the Layout Design of Open Cage Fish Farm
(Master thesis, 2023)Aquaculture, one of the fastest-growing food production method, has become Norway's second-largest export industry in the past decades. In Norway, the high-value fish like Atlantic Salmon are usually raised in multi-cage ... -
Numerical Modeling and Dynamic Analysis of Two-Rotor Floating Offshore Wind Turbines
(PhD thesis UiS;682;, Doctoral thesis, 2023)The exploitation of offshore wind in deep waters by means of floating wind turbines is steadily gaining traction as a suitable option to produce renewable energy. Among the innovative technologies recently proposed, two-rotor ... -
Numerical modeling of recycled fibre reinforced concrete beams and comparison with experimental findings
(Masteroppgave/UIS-TN-IKM/2017;, Master thesis, 2017-06)The presented work has the main focus on fibre reinforced concrete (FRC). FRC is examined in ATENA, and the numerical results are compared to the experimental. The first part of this report treats the concept of nonlinear ... -
Numerical modeling of Reinforced Concrete Squat Shearwalls using FRP
(Master thesis, 2023)Reinforced concrete shear walls are the most common resistance system against lateral loads in reinforced concrete structures. Despite this, many of the reinforced concrete shear walls in the world need to be strengthened ... -
Numerical Modelling and Global Response Assessment of Floating Docks towards Efficient, Safer and Autonomous Docking Operations
(PhD thesis UiS;, Doctoral thesis, 2024)Floating docks are known for their construction efficiency and operational flexibility compared to traditional graving docks. They play an important role in shipyards by serving as essential platforms for vessel construction, ... -
Numerical Modelling and Sensitivity Analysis of Gas Kick Migration and Unloading of Riser
(Chapter, 2019)In deepwater wells there is a risk of gas entering the riser. This can be caused by gas being trapped by the BOP after a well kill operation, or it can be that the BOP was not closed quickly enough upon kick detection. ... -
Numerical modelling of a high temperature borehole thermal energy storage system: Norway case study
(Peer reviewed; Journal article, 2023)Global warming is threatening life on earth. Utilising renewable energy is considered as the most effective measure to minimise anthropogenic CO2 emissions. High-temperature borehole thermal energy storage (BTES) systems ... -
Numerical Modelling of Gas Production and CO2 Injection in Tight Shale Reservoirs for Enhanced Gas Recovery
(PhD thesis;560, Doctoral thesis, 2020-11)Natural gas production from shales has become exceedingly important in satisfying the ever-growing global energy demands. This unconventional hydrocarbon system is globally abundant, with large technically recoverable ... -
Numerical modelling of hydrodynamic responses of Ocean Farm 1 in waves and current and validation against model test measurements
(Peer reviewed; Journal article, 2021)With the continuous growing of the aquaculture industry and increasingly limited fish farming sites at close to shore areas both in Norway and worldwide, there is a need to develop fish farms suitable for aquaculture ... -
Numerical modelling of reverse circulation cementing with density unstable displacements in eccentric annulus
(Master thesis, 2021)This dissertation investigates the mechanics involved in reverse circulation cementing (RCC) with numerical modelling. Numerical simulations are done by utilising a computational fluid dynamics (CFD) software (OpenFOAM). ... -
Numerical Optimisation of a Classical Stochastic System for Targeted Energy Transfer
(Peer reviewed; Journal article, 2022)The paper studies stochastic dynamics of a two-degree-of-freedom system, where a primary linear system is connected to a nonlinear energy sink with cubic stiffness nonlinearity and viscous damping. While the primary mass ... -
Numerical Simulation and Customized DACM Based Design Optimization
(PhD thesis UiS;, Doctoral thesis, 2018)The diverse numerical modelling, analysis and simulation tools that have been developed and introduced to markets are intended to perform the virtual design and testing of products and systems without the construction of ... -
Numerical Simulation and Experimental Study of Reelwell’s Heavy over Light Solution in Vertical Well Sections
(Masteroppgave/UIS-TN-IPT/2016;, Master thesis, 2016-06)Reelwell has developed the Reelwell Drilling Method (RDM), including the Heavy Over Light (HOL) solution. The HOL solution allows drilling with simultaneously use of two different drilling fluids, i.e. a near static ... -
Numerical Simulation of Breaking Wave Loading on Standing Circular Cylinders with Different Transverse Inclined Angles
(Peer reviewed; Journal article, 2020)The purpose of this paper is to numerically simulate the breaking wave past a standing cylinder with different transverse inclined angles. The numerical simulations are carried out by solving the Unsteady Reynolds-Averaged ...