| Titre : |
Modelling of Turbulence-Combustion Interactions for the Simulation of Fires in Confined and Ventilated Enclosures |
| Titre original : |
Modélisation des interactions combustion-turbulence pour la simulation des incendies en milieux confinés et ventilés |
| Type de document : |
thèse |
| Auteurs : |
Uday CHIKKABIKKODU KRISHNA MURTHY, Auteur ; Arnaud MURA, Directeur de thèse ; Franck RICHARD, Directeur de thèse ; Germain BOYER, Directeur de thèse ; Institut PPRIME UPR CNRS 3346 - FTC, Commanditaire ; Arnaud TROUVÉ, Rapporteur ; Stéphane JAY, Rapporteur ; Béatrice PATTE-ROULAND, Examinateur ; Cédric GALIZZI, Examinateur |
| Année de publication : |
2024 |
| Importance : |
259 p. |
| Note générale : |
NNT 2024ESMA0014
Dedication
Acknowledgements
Abstract & Keywords
Table of Contents
List of Figures
List of Tables
Nomenclature
Appendices
Bibliography
Abstract
Keywords |
| Catégories : |
Combustibles
Combustion
Flamme
Incendies
Modélisation CFD
Monoxyde de carbone
Suie
Transfert de chaleur
Turbulence
|
| Résumé : |
INTRODUCTION AND GENERAL CONTEXT
Fire Safety in Nuclear Installations
Compartment Fires
Reactive Flow Modelling
Objectives of the Thesis
Organization of the Manuscript
GOVERNING EQUATIONS
Thermo-Chemistry of Gas Mixtures
Navier-Stokes Equation for Low Mach Number Flows
Multi-Species Transport Coefficients
Simplified Description of the Composition of Multi-Component Flow
TURBULENCE MODELLING
Statistical Description of Turbulence
Averaged or Filtered Equations
Reynolds Stress Closure Model - Boussinesq Hypothesis
Closure Models for Unresolved Fluxes
Statistics in LES
TURBULENT NON-PREMIXED COMBUSTION
Fast Chemistry Models
Finite Rate Chemistry
Flame Structures Comparison
Consideration of Turbulence
STEADY LAMINAR FLAMELET MODEL
Introduction
Flamelet Description in the Mixture Fraction Space
Flamelet Description in Physical-Space
Strain-Rate and Scalar Dissipation Rate
Presumed Probability Density Functions
Averages and Filtered Scalar Transport Equations
Flamelet Generation and Analysis
RANS Simulation of the Piloted Sandia Jet Flame D
Conclusions
MULTIPLE-INLET FLAMELET MODEL
Introduction
Description of Multiple-Inlet Flows
Flamelet Modelling of Multiple-Inlet Flows
APPLICATIONS OF THE MULTIPLE-INLET FLAMELET MODEL TO THE ADELAIDE JHC BURNER
Experimental Configuration of the JHC Burner
Flamelet Generation Analysis
RANS Simulations of the Adelaide JHC Burner
LES of the Adelaide JHC Burner
APPLICATION OF THE FLAMELET MODELS TO FIRE SCENARIOS
General Context
Application of the Flamelet Model to the LES of a Pool Fire
Application of the Multiple-Inlet Flamelet Model to the LES of a Compartment Fire
Conclusions
CONCLUSIONS AND PERSPECTIVES
|
| En ligne : |
https://theses.fr/2024ESMA0014 |
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