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|Title:||Comparison of Modelling Approaches for CFD Simulations of High Pressure Hydrogen Releases|
|Authors:||PAPANIKOLAOU EFTHYMIA; BARALDI Daniele|
|Citation:||Proceedings of the 4th International Conference on Hydrogen Safety (ICHS) 2011 p. 1-13|
|Publisher:||IA-HySafe, University di Pisa, Sandia National Laboratories|
|Type:||Articles in periodicals and books|
|Abstract:||Several approaches have been used in the past to model the source of a high pressure under-expanded jet such as the computationally expensive resolution of the jet shock structure and the simpler pseudosource or notional nozzle approaches. In each approach assumptions are made introducing inaccuracies in the CFD calculations. This work assesses the effect of different source modeling approaches on the accuracy of CFD calculations by comparing simulation results to experimental data of the axial distribution of the flow velocity and H2 concentration.|
|JRC Directorate:||Nuclear Safety and Security|
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