The role of CFD combustion modelling in hydrogen safety management – VIII: Use of Eddy Break-Up combustion models for simulation of large-scale hydrogen deflagration experiments

•Three modifications of the Eddy Break-Up combustion model are considered: basic with Said-Borghi correction, extended to quasi-laminar flame propagation, and augmented with weighted laminar flame speed.•The models are assessed by simulating two upward flame propagation combustion experiments, performed in large-scale vessels of different volumes.•Differences between results, obtained with different models, are much larger in the wider vessel than in the narrower one.•The quasi-laminar term in the progress variable transport equation source term may exert considerable influence when simulating deflagration in large vessels.