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

Francisco Nicolás-Pérez, F.J.S. Velasco, Ramón A. Otón-Martínez, José R. García-Cascales, Ahmed Bentaib and Nabiha Chaumeix
Additional contact information
Francisco Nicolás-Pérez: Lynx Simulations S.L., C/Del Metal 4, 30009 Murcia, Spain
F.J.S. Velasco: Department of Fluids and Thermal Engineering, Universidad Politécnica de Cartagena, Dr. Fleming s/n, 30202 Cartagena, Spain
Ramón A. Otón-Martínez: Department of Engineering and Applied Techniques, University Centre of Defense at the Spanish Air Force Academy, C/López Peña s/n, 30720 San Javier, Spain
José R. García-Cascales: Department of Fluids and Thermal Engineering, Universidad Politécnica de Cartagena, Dr. Fleming s/n, 30202 Cartagena, Spain
Ahmed Bentaib: Institut de Radioprotection et Sûrete Nucléaire, 31 Av. de la Division Leclerc, 92260 Fontanay-aux-Roses, France
Nabiha Chaumeix: INSIS, CNRS, 1C Avenue de la Recherche Scientifique, 45071 Orléans, France

Mathematics, 2021, vol. 9, issue 17, 1-17

Abstract: The numerical modelling of turbulent combustion of H 2 –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 model based on the resolution of the Navier–Stokes equations via large eddy simulation (LES) coupled with a system of ordinary differential equations (ODEs) of the detailed chemical kinetics to simulate the combustion of mixtures of gases and particles. The model was applied to predict the transient evolution of turbulent combustion sequences of mixtures of hydrogen, air and graphite particles under low concentration conditions. When applied to simulate lab-scale combustion experiments, the results showed a good agreement between experimental and numerical data using a detailed chemical kinetic model. Moreover, the model was able to predict some key experimental tendencies and revealed that the presence of a low concentration of graphite particles (~96 g/m 3 ) in the scenario influenced the hydrogen combustion dynamics for mixtures of 20% (in volume) of hydrogen in air. Under these conditions, pressure levels reached at the walls of the sphere were increased and the combustion time was shortened. The results also showed the viability of using this kind of a model for obtaining global combustion parameters such as wall pressure evolution with time.

Keywords: turbulent combustion; LES; two-phase flow (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2227-7390/9/17/2017/pdf (application/pdf)
https://www.mdpi.com/2227-7390/9/17/2017/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jmathe:v:9:y:2021:i:17:p:2017-:d:620353

Access Statistics for this article

Mathematics is currently edited by Ms. Emma He

More articles in Mathematics from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().