Browsing by Author "Fossum, Hannibal E."
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Computational fluid dynamics simulations of local wind in large urban areas
Fossum, Hannibal E.; Helgeland, Anders (2020-09-29)The present report details the methodology and parameters used for high-fidelity computational fluid dynamics (CFD) simulations of wind in large urban areas. In particular, a 150 km2 area of Oslo is used as an example, ... -
Computational fluid dynamics simultations of flow and dispersion in the aerosol test chamber
Fossum, Hannibal E.; Reif, Bjørn Anders Pettersson (2012-10-19)This report presents findings from computer simulations of the air flow and the dispersion of aerosols inside a rectangular 12 m3 Aerosol Test Chamber. Methodologically, the Large Eddy Simulation approach is used, in ... -
Luftbåren smitte av virale luftveisinfeksjoner fra et aerosolfysisk perspektiv
Åkervik, Espen; Fossum, Hannibal E.; Dybwad, Marius; Helgeland, Anders (2020-06-16)Luftbåren smitte foregår gjennom at infeksiøst materiale følger med dråper av ulik størrelse ut fra verten gjennom respiratoriske aktiviteter som pust, tale, sang, host eller nys. For de vanlige aktivitetene som pusting, ... -
Measurements of hydrocarbon flame propagation in a channel
Åkervik, Espen; Fossum, Hannibal E.; Henriksen, Mathias; Bjerketvedt, Dag (2021-05-25)Assessing the risk of gas explosions associated with Li-ion batteries in confined geometries is challenging. When a Li-ion battery cell undergoes so-called thermal runaway, internal reactions in the cell can lead to the ... -
Simulation of bomb residue deposition following the Oslo bombing July 22, 2011
Wingstedt, Emma M. M.; Fossum, Hannibal E.; Reif, Bjørn Anders Pettersson (2012-11-16)The objective of the present study is to simulate the dispersion and make an assessment on the shape and concentration of the deposition of particle residues originating from the improvised explosive device used on July ...