Capabilities and limitations of Large Eddy Simulation with perfectly stirred reactor assumption for engineering applications of unsteady, hydrogen combustion sequences

Autor: F. J. S. Velasco, Nabiha Chaumeix, A. Bentaib, F. Nicolás-Pérez, R.A. Otón-Martínez, Jose Ramon Garcia-Cascales

Publikováno v: Engineering Applications of Computational Fluid Mechanics, Vol 15, Iss 1, Pp 1452-1472 (2021)
Engineering Applications of Computational Fluid Mechanics
Engineering Applications of Computational Fluid Mechanics, 2021, 15 (1), pp.1452-1472. ⟨10.1080/19942060.2021.1974092⟩
Engineering Applications of Computational Fluid Mechanics, Taylor & Francis, 2021, 15 (1), pp.1452-1472. ⟨10.1080/19942060.2021.1974092⟩

International audience; This work evaluates the capabilities of Large Eddy Simulation with perfectly stirred reactor (PSR) assumption and detailed chemistry to predict unsteady, premixed, hydrogen combustion sequences. The model was benchmarked with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b27e79082063af6eabaabb4cba98562
https://doaj.org/article/de8fcde1fffa46898da3a1165f2e0adc

Mathematical Modelling of Turbulent Combustion of Two-Phase Mixtures of Gas and Solid Particles with a Eulerian–Eulerian Approach: The Case of Hydrogen Combustion in the Presence of Graphite Particles

Autor: Ahmed Bentaib, Nabiha Chaumeix, R.A. Otón-Martínez, F.J.S. Velasco, F. Nicolás-Pérez, Jose Ramon Garcia-Cascales

Publikováno v: Mathematics, Vol 9, Iss 2017, p 2017 (2021)
Mathematics
Mathematics, MDPI, 2021, 9 (17), pp.2017. ⟨10.3390/math9172017⟩
Volume 9
Issue 17

International audience; The numerical modelling of turbulent combustion of H2–air mixtures with solid graphite particles is a challenging and key issue in many industrial problems including nuclear safety. This study presents a Eulerian–Eulerian

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8dc1811013c31f66fdb4df39891c58a8
https://www.mdpi.com/2227-7390/9/17/2017

Evaluation of different models for turbulent combustion of hydrogen-air mixtures. Large Eddy Simulation of a LOVA sequence with hydrogen deflagration in ITER Vacuum Vessel

Autor: Jose Ramon Garcia-Cascales, Ahmed Bentaib, F.J.S. Velasco, F. Nicolás-Pérez, Nabiha Chaumeix, R.A. Otón-Martínez

Publikováno v: Fusion Engineering and Design
Fusion Engineering and Design, Elsevier, 2020, 161, pp.111901. ⟨10.1016/j.fusengdes.2020.111901⟩

International audience; The modelling of premixed combustion in the presence of a turbulent field in three-dimensional (3-D) confined scenarios was studied in this work, and applied to hydrogen combustion within ITER vacuum vessel (VV). Two different

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::581069891557d1b734d2690740efc315
https://doi.org/10.1016/j.fusengdes.2020.111901

Analysis of Several Numerical Schemes for the Characterization of Solid Propellant Combustion

Autor: C. López-Muñoz, R.A. Otón-Martínez, J. Serna, R. A. Gonzalo-Ugarte, Alejandro López-Belchí, F.J.S. Velasco, R. Mur, D. Moratilla-Fernández, Francisco José Ruiz Rey, Jose Ramon Garcia-Cascales

Publikováno v: Scopus-Elsevier

Prediction of solid propellant combustion behaviour is of major importance to guarantee its safety use. In this work, the application of some numerical schemes to solve propellant combustion problem is explored. These are MacCormack-TVD and Rusanov n

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::559ac17517235d28e931ecfe4eff29be
https://doi.org/10.12783/ballistics2017/16953

An approach formulated in terms of conserved variables for the characterisation of propellant combustion in internal ballistics

Autor: F. Vera-García, F. J. Ramírez-Fernández, F.J.S. Velasco, Jose Ramon Garcia-Cascales, G. Monreal-González, R.A. Otón-Martínez

Publikováno v: International Journal for Numerical Methods in Fluids. 79:394-415

Summary A model formulated in terms of conserved variables is proposed for its use in the study of internal ballistic problems of pyrotechnical mixtures and propellants. It is a transient two-phase flow model adapted from the non-conservative Gough m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cdc65b63f0b4d9bdd665d9f3bbb4f74f
https://doi.org/10.1002/fld.4056