Browsing Fakultet for ingeniørvitenskap (IV) by Title
Now showing items 20250-20269 of 23231
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Surface Pressure Reconstruction in Shock Tube Tests Using the Virtual Fields Method
(Chapter, 2022)This study investigates full-field, dynamic pressure reconstruction during shock-structure interactions using optical measurements and the virtual fields method (VFM). Shock wave impacts pose severe challenges to experimental ... -
Surface Pressure Reconstruction in Shock Tube Tests Using the Virtual Fields Method
(Chapter, 2022)This study investigates full-field, dynamic pressure reconstruction during shock-structure interactions using optical measurements and the virtual fields method (VFM). Shock wave impacts pose severe challenges to experimental ... -
Surface roughness in bubble attachment and flotation of highly hydrophobic solids in presence of frother – experiment and simulations
(Journal article; Peer reviewed, 2017)In this paper, the kinetic of the three-phase contact (TPC) formation and the flotation recovery of highly hydrophobic solids with different surface roughness were studied in pure water and aqueous solutions of n-octanol. ... -
Surface roughness of as-printed polymers: a comprehensive review
(Peer reviewed; Journal article, 2023)Surface roughness is gaining increasing recognition in the processing design methods of additive manufacturing (AM) due to its role in many critical applications. This impact extends not only to various AM product manufacturing ... -
Surface Seismic While Drilling - A new method for relief well drilling
(Master thesis, 2013)The first relief wells emerged out of necessity, and have since been shaped by several disastrous events throughout the 20th and 21th century. The modern relief well shows little resemblance to the first relief wells that ... -
Surface structure and wetting characteristics of Collembola cuticles
(Journal article; Peer reviewed, 2014)The cuticles of the arthropods Collembola (springtails) are known to be superhydrophobic, displaying such properties as water-repellence and plastron formation; overhanging surface structures have been suggested as the ... -
Surface volume control through continuous surveillance of drilling data
(Master thesis, 2017)When a new well is being drilled, volume control should be among the most important focus areas for the drilling crew. In every drilling operation, pressures exerted from the formations need to be controlled and overbalance ... -
Surface water waves on depth dependent flows
(Doctoral theses at NTNU;2017:194, Doctoral thesis, 2017)The present thesis provides essential insights into surface water waves propagating atop a horizontal current whose magnitude and direction may vary arbitrarily with water depth. A comprehensive theory in this regard is ... -
Surface wavepackets subject to an abrupt depth change. Part 1. Second-order theory
(Peer reviewed; Journal article, 2021)This paper develops second-order theory for narrow-banded surface gravity wavepackets experiencing a sudden depth transition based on a Stokes and multiple-scales expansion. As a wavepacket travels over a sudden depth ... -
Surface wavepackets subject to an abrupt depth change. Part 2. Experimental analysis
(Peer reviewed; Journal article, 2021)Surface gravity wavepackets in intermediate water depth experiencing an abrupt depth decrease are investigated experimentally. The experiments provide validation for the second-order (in steepness) theory for narrow-banded ... -
Surface Waves Generated by a Translating and Oscillating Source Atop Realistic Shear Flows
(Chapter, 2018)We analyze surface waves generated by a translating, oscillating surface disturbance atop a horizontal background flow of arbitrary depth dependence, with a focus on determining the Doppler resonance. For a critical value ... -
Surface waves modified by subsurface shear currents
(Doctoral theses at NTNU;2019:389, Doctoral thesis, 2019)This thesis presents work studying water waves propagating atop background shear currents. A growing body of research, to which this thesis contributes, indicates that accounting for the effects of shear currents are ... -
Surface Wrinkling with Memory for Programming Adhesion and Wettability
(Peer reviewed; Journal article, 2023)Modulating surface wrinkling is important for a variety of engineering applications. It has been known for more than two decades that the wavelength of surface wrinkles occurring in a metal film–soft polymer system scales ... -
Surface-Charge Alteration at the Carbonate/Brine Interface During Single-Well Chemical-Tracer Tests: Surface-Complexation Model
(Journal article; Peer reviewed, 2018)Water chemistry has been shown to affect oil recovery by affecting surface charge and rock dissolution. The single-well chemical-tracer (SWCT) test is a field method to measure residual oil saturation (Sor), in which ... -
Surfacing Tool for Valve Pockets
(Master thesis, 2010)The objective of this master's thesis was to develop a surfacing tool for valve pocket seal surfaces found in subsea valve trees. The work was initiated by Aker Subsea. Metal-to-metal seals are used in the valves to prevent ... -
Surfactant Enhanced Oil Recovery in Fractured Reservoirs: Simulation study of surfactant spontaneous and dynamic imbibition
(Doctoral theses at NTNU;2019:387, Doctoral thesis, 2019)Water flooding has poor performance in fractured reservoirs with mixed- or oil-wet wettability. Surfactant could be used to improve oil recovery by changing wettability to more water-wet or reducing water/oil interfacial ... -
A Surfactant for Enhanced Heavy Oil Recovery in Carbonate Reservoirs in High-Salinity and High-Temperature Conditions
(Peer reviewed; Journal article, 2020)In view of the difficulty of producing heavy oil from carbonate reservoirs, the surfactant SDY-1 was synthesized by homogeneous solution polymerization with a homogeneous solution polymerization technique using aliphatic ... -
Surge and Swab Pressure Calculation: Calculation of Surge and Swab Pressure Changes in Laminar and Turbulent Flow While Circulating Mud and Pumping
(Master thesis, 2014)Pressure changes due to Surge and Swabs has in many years been a big concern in the industry. If the pressure changes become too high, the formation can fracture, and formation influx can lead to a kick. In worst case ... -
Surge and Swab Simulations
(Master thesis, 2019)Det er nye tider i energisektoren og det er stort fokus på optimal olje- og gassutvinning. Samtidig som verden ønsker å bevege seg i en miljøvennligretning mot mindre utslipp, er vi i stor grad fremdeles avhengige av olje ... -
Surge Mitigation for Pumped Storage Hydropower
(Journal article, 2020)