Blar i USN Open Archive på forfatter "Vågsæther, Knut"
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Structural response analysis of explosions in hydrogen-air mixtures in tunnel-like geometries
Bratland, Magne; Bjerketvedt, Dag; Vågsæther, Knut (Peer reviewed; Journal article, 2021)This paper presents a structural response analysis based on the results of experiments involving gas explosions in inhomogeneous hydrogen-air mixtures in a channel. The channel was 3 m long, with a cross-section of 100 mm ... -
Study of Fluidization Regimes using OpenFOAM Computational Fluid Dynamics
Welahettige, Prasanna Kumara Welahetti; Lie, Bernt; Vågsæther, Knut; Moldestad, Britt Margrethe Emilie (Journal article; Peer reviewed, 2017)The objective of this study was using computational fluid dynamics simulation with OpenFOAM to study the fluidization properties for four types of particles classified as Geldart A, B, C and D. Fluidization regimes were ... -
Teoretisk analyse av rørstrømning under flytende hydrogenbunkring
Aavik, Nils Jørgen (Master thesis, 2022)Denne oppgaven hadde som mål å bruke teoretiske modeller for å estimere trykktapet ved flytende hydrogenbunkring og å studere hydrogenfasen gjennom systemet. Massestrøm studeres også ved å bruke to metoder for kurvetilpasning ... -
Thermal Design of Future Medium Voltage Switchgear
Fjeld, Elin; Rondeel, Wilhelm; Vågsæther, Knut; Saxegaard, Magne; Skryten, Pål; Attar, Elham (Conference object; Peer reviewed, 2015)Air is a desirable alternative to SF6 in medium voltage (MV) switchgear. However, the thermal properties of air is poorer compared with SF6, and this paper presents a first step in the process of finding an optimized thermal ...