Blar i Bergen Open Research Archive på forfatter "Hisken, Helene"
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Blind-prediction: estimating the consequences of vented hydrogen deflagrations for inhomogeneous mixtures in 20-foot ISO containers
Skjold, Trygve; Hisken, Helene; Bernard, Laurence; Mauri, Lorenzo; Atanga, Gordon; Lakshmipathy, Sunil; Lucas, Melodia; Carcassi, Marco; al., et (Peer reviewed; Journal article, 2019-09)This paper summarises the results from a blind-prediction benchmark study for models used for estimating the consequences of vented hydrogen deflagrations, as well as for users of such models. The work was part of the HySEA ... -
CFD Analysis of Explosions with Hydrogen-Methane-Air Mixtures in Congested Geometries
Lucas, Melodia Perez; Hisken, Helene; Skjold, Trygve; Arntzen, Bjørn Johan (Journal article; Peer reviewed, 2022)Hydrogen is an enabler for de-carbonising the energy system in Europe by 2050. In the UK, several projects are investigating the feasibility of gradually blending hydrogen into the natural gas pipelines with the aim to ... -
CFD modelling of hydrogen and hydrogen-methane explosions – Analysis of varying concentration and reduced oxygen atmospheres
Lucas, Melodia Perez; Hisken, Helene; Skjold, Trygve; Arntzen, Bjørn Johan; van Wingerden, Kees (Journal article; Peer reviewed, 2023)This paper evaluates the predictive capabilities of the advanced consequence model FLACS-CFD for deflagrations involving hydrogen. Two modelling approaches are presented: the extensively validated model system originally ... -
Computational fluid dynamics simulations of hydrogen releases and vented deflagrations in large enclosures
Lucas, Melodia; Hisken, Helene; Skjold, Trygve (Peer reviewed; Journal article, 2020-01)This paper presents model predictions obtained with the CFD tool FLACS for hydrogen releases and vented deflagrations in containers and larger enclosures. The paper consists of two parts. The first part compares experimental ... -
Investigation of instability and turbulence effects on gas explosions: experiments and modelling
Hisken, Helene (Doctoral thesis, 2018-03-09)Safe design of industrial facilities requires models that can predict the consequences of accidental gas explosions in complex geometries with sufficient accuracy. Computa- tional fluid dynamics (CFD) models are widely ... -
Simulating vented hydrogen deflagrations: Improved modelling in the CFD tool FLACS-hydrogen
Melodia, Lucas; Atanga, Gordon; Hisken, Helene; Mauri, Lorenzo; Skjold, Trygve (Journal article; Peer reviewed, 2021)This paper describes validation of the computational fluid dynamics tool FLACS-Hydrogen. The validation study focuses on concentration and pressure data from vented deflagration experiments performed in 20-foot shipping ...