Predictions of turbulent, premixed flame propagation in explosion tubes☆
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LES – DFSD modelling of vented hydrogen explosions in a small-scale combustion chamber
2021, Journal of Loss Prevention in the Process IndustriesCitation Excerpt :The most frequently used CFD techniques include the Reynolds-averaged Navier-Stokes (RANS) approach, direct numerical simulation (DNS) and large eddy simulations (LES) (Versteeg and Malalasekera, 2007). Than RANS approach has been successfully used to investigate the safety aspect of accidents and explosions for applicable structures (Catlin et al., 1995; Efthimiou et al., 2017; Huang et al., 2020; Popat et al., 1996). The RANS technique has also been applied to large scale applications, providing adequate results within the defined applications (Baraldi et al, 2010, 2017; Marangon et al., 2009; Vyazmina and Jallais, 2016).
Numerical studies of premixed hydrogen/air flames in a small-scale combustion chamber with varied area blockage ratio
2020, International Journal of Hydrogen EnergyOn the mechanism of pressure rise in vented explosions: A numerical study
2018, Process Safety and Environmental ProtectionCitation Excerpt :Thanks to the improvements in computational technology and resources, CFD is becoming a more attractive and reliable tool as an alternative to experiments in process industries. Reynolds-averaged Navier-Stokes (RANS) methods have been applied in studying explosions for safety-related structures (Birkby et al., 2000; Catlin et al., 1995; Popat et al., 1996). While RANS-based method remains as the major numerical tool in explosion-related studies, the accuracy is generally not sufficient and a certain degree of tuning of model parameters is usually required.
The role of CFD combustion modeling in hydrogen safety management – IV: Validation based on non-homogeneous hydrogen–air experiments
2016, Nuclear Engineering and DesignLarge Eddy simulation of hydrogen-air premixed flames in a small scale combustion chamber
2015, International Journal of Hydrogen EnergyCitation Excerpt :The importance to study deflagrating flames came from the fact of their wide applications in industry and accidental explosions. However, there are already a significant amount of studies reporting data in vented explosions in laboratory chambers [3–12]. Different parameters are reported in these studies, mainly pressure and/or velocity, but the information remains limited because of the difficulty of making detailed measurements [13].
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The calculations reported in this paper were made using a modified version of the Mantis Numerics Ltd. code, COBRA. This paper is published by permission od British Gas Plc.