Blar i NTNU Open på forfatter "Ervik, Åsmund"
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Multiscale modelling using molecular dynamics and interfacecapturing methods for two-phase flow simulation of droplets covered with surfactants or asphaltenes, and applications to electrocoalescence
Ervik, Åsmund (Doctoral thesis at NTNU;2016:174, Doctoral thesis, 2016)THE WORK PRESENTED in this thesis attempts to improve our fundamental understanding of the interfacial properties of water drops in crude-oil. Model fluids consisting of aliphatic oil with surfactants, as well as real ... -
Storage Tank Concepts for Liquefied Hydrogen
Cristea, Vlad (Master thesis, 2020) -
Swirl-Bypass Nozzle for CO2 Two-Phase Ejectors: Numerical Design Exploration
Ringstad, Knut Emil; Banasiak, Krzysztof; Ervik, Åsmund; Hafner, Armin (Journal article; Peer reviewed, 2022)In this work, a novel ejector design concept of a swirl-bypass nozzle is proposed to improve off-design performance of CO2 two-phase ejectors. The swirl-bypass nozzle allows part of the flow to bypass into the ejector ... -
The Local Level-Set Extraction Method for Robust Calculation of Geometric Quantities in the Level-Set Method
Ervik, Åsmund (Master thesis, 2012)The level-set method is an implicit interface capturing method that can be used in two or more dimensions. The method is popular e.g. in computer graphics, and as here, in simulations of two-phase flow. The motivation for ... -
The transition in settling velocity of surfactant-covered droplets from the Stokes to the Hadamard–Rybczynski solution
Ervik, Åsmund; Bjørklund, Erik (Journal article, 2017)The exact solution for a small falling drop is a classical result by Hadamard and Rybczynski. But experiments show that small drops fall slower than predicted, giving closer agreement with Stokes’ result for a falling hard ...