A Review of Computional Fluid Dynamics (CFD) Modeling of Gas Explosions

Source, dispersion and combustion modelling of an accidental release of hydrogen in an urban environment

“…Case 2: the second curve corresponds to the detailed modelling of all 18 vessels, assuming 2 jets (nos. 3,17). The sudden drop at approximately 50 s is because the three vessels that feed jet 3 are empty.…”

“…shallow layer type or box models, the computational fluid dynamics (CFD) modelling approach gives more realistic predictions of dispersion in complex geometries [2]. The CFD approach has also been widely used to predict gas explosion phenomena [3], although simple empirical models also exist, e.g. TNT equivalency methods [4].…”

Numerical analysis of release, dispersion and combustion of liquid hydrogen in a mock-up hydrogen refuelling station

“…The combustion model is based on the eddy-dissipation model developed by Hjertager (1982aHjertager ( , 1982bHjertager ( , 1989. The model has been extensively validated by Hjertager and his co-workers in Hjertager (1993), Hjertager and Solberg (1999) and Popat, Catlin, Arntzen, Lindstedt, Hjertager, Solberg, T., et al (1996). The expression of the chemical reaction rate for turbulent combustion is given by the expression of the rate of change of the fuel partial density:…”

CFD modelling of hydrogen release, dispersion and combustion for automotive scenarios

“…The model employed is based on the eddy-dissipation model developed by Hjertager (1982aHjertager ( , b, 1989. The model has been extensively validated by Hjertager and his co-workers in Hjertager (1993), Hjertager and Solberg (1999) and Popat et al (1996).…”