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Thermodynamics, Numerical Waves, Interfaces, Combustion Team

Thermal effects in rotating systems

Waves and immersed interfaces

Modeling of reactive multiphase flows

Modeling and simulation of forest fire propagation

Mixture thermodynamics

Thermodynamics, Numerical Waves, Interfaces, Combustion Team
Présentation

The TONIC team is developing an activity of modeling of strongly multi-scale phenomena. It covers in particular multiphase and/or reactive flows, from the scale of the isolated injector (a few mm) to the scale of a fully developed forest fire (several hectares). 
Adapted numerical methods are developed in parallel, in particular for soil imaging (detection of slicks by acoustic analysis), or for the modeling of radiative transfers.

In parallel to these multi-scale developments, analytical work is carried out to support the construction of models. An important research effort is devoted to the modeling of the thermodynamics of multiphase mixtures (thermochemical equilibrium calculations, complex thermodynamic closures), or to the development of reduced kinetic models for combustion.

+ Modeling of reactive multiphase flows
+ Waves and immersed interfaces
+ Modeling and simulation of forest fire propagation
+ Mixture thermodynamics
+ Thermal effects in rotating systems

Team leader

  • Pierre BOIVIN
    Chargé de Recherche CNRS - HDR
    équipe Thermodynamique Ondes Numérique Interfaces Combustion
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Annuaire personnel permanent

  • Pierre BOIVIN
    Chargé de Recherche CNRS - HDR
    équipe Thermodynamique Ondes Numérique Interfaces Combustion
  • Guillaume CHIAVASSA
    Professeur Centrale Méditerranée
    équipe Thermodynamiques, Ondes, Numérique, Interfaces et Combustion
  • Dominique MORVAN
    Professeur des Universités AMU - émérite
    équipe Thermodynamiques, Ondes, Numérique, Interfaces et Combustion
  • Evelyne NEAU
    Professeur des Universités AMU - émérite
    équipe Thermodynamique Ondes Numérique Interfaces Combustion
  • Isabelle RASPO
    Chargée de Recherche CNRS
    équipe Thermodynamiques, Ondes, Numérique, Interfaces et Combustion
  • Stéphane VIAZZO
    Maître de Conférences AMU - HDR
    équipe Thermodynamiques, Ondes, Numérique, Interfaces et Combustion
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Doctorants, Post-Doctorants et CDD

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Dernières publications de l'équipe

  • 2025
    Hippolyte Lerogeron, Pierre Boivin, Vincent Faucher, Julien Favier. A Numerical Framework for Fast Transient Compressible Flows Using Lattice Boltzmann and Immersed Boundary Methods. International Journal for Numerical Methods in Engineering, 2025, 126 (3), ⟨10.1002/nme.7647⟩. ⟨hal-04958000⟩ Plus de détails...

    A Numerical Framework for Fast Transient Compressible Flows Using Lattice Boltzmann and Immersed Boundary Methods

    This article is dedicated to the development of a model to simulate fast transient compressible flows on solid structures using immersed boundary method (IBM) and a lattice Boltzmann solver. Ultimately, the proposed model aims at providing an efficient algorithm to simulate strongly‐coupled fluid‐structure interactions (FSI). Within this goal, it is necessary to propose a precise and robust numerical framework and validate it on stationary solid cases first, which is the scope of the present study. Classical FSI methods, such as body‐fitted approaches, are facing challenges with moving or complex geometries in realistic conditions, requiring computationally expensive re‐meshing operations. IBM offers an alternative by treating the solid structure geometry independently from the fluid mesh. This study focuses on the extension of the IBM to compressible flows, and a particular attention is given to the enforcement of various thermal boundary conditions. A hybrid approach, combining diffuse forcing for Dirichlet‐type boundary conditions and ghost‐nodes forcing for Neumann‐type boundary conditions is introduced. Finally, a simplified model, relying only on diffuse IBM forcing, is investigated to treat specific cases where the fluid solid interface is considered as adiabatic. The accuracy of the method is validated through various test cases of increasing complexity.
    Hippolyte Lerogeron, Pierre Boivin, Vincent Faucher, Julien Favier. A Numerical Framework for Fast Transient Compressible Flows Using Lattice Boltzmann and Immersed Boundary Methods. International Journal for Numerical Methods in Engineering, 2025, 126 (3), ⟨10.1002/nme.7647⟩. ⟨hal-04958000⟩
    Journal: International Journal for Numerical Methods in Engineering
    Date de publication: 07-02-2025
    Auteurs:
    Liste des documents:
    Digital object identifier (doi): http://dx.doi.org/10.1002/nme.7647
    Voir la publication sur Hal
  • 2025
    Gabriel Meletti, Stéphane Abide, Uwe Harlander, Isabelle Raspo, Stéphane Viazzo. On the influence of the heat transfer at the free surface of a thermally driven rotating annulus. Physics of Fluids, 2025, 37 (3), pp.034101. ⟨10.1063/5.0248712⟩. ⟨hal-05007412⟩ Plus de détails...

    On the influence of the heat transfer at the free surface of a thermally driven rotating annulus

    Experiments on rotating annuli that are differentially heated in the radial direction have largely contributed to a better understanding of baroclinic instabilities. This configuration creates waves at a laboratory scale that are related to atmospheric circulations. Pioneer studies in baroclinic tanks have shown that experiments with low aspect ratios are more suitable to reproduce small-scale inertia gravity waves, but these tanks have a larger free surface, which leads to higher interactions with their surrounding environment. Considering the heat transferred through the free surface, the present work investigates its impacts on the baroclinic instability using direct numerical simulations (DNS).
    Gabriel Meletti, Stéphane Abide, Uwe Harlander, Isabelle Raspo, Stéphane Viazzo. On the influence of the heat transfer at the free surface of a thermally driven rotating annulus. Physics of Fluids, 2025, 37 (3), pp.034101. ⟨10.1063/5.0248712⟩. ⟨hal-05007412⟩
    Journal: Physics of Fluids
    Date de publication: 01-01-2025
    Auteurs:
    Liste des documents:
    Digital object identifier (doi): http://dx.doi.org/10.1063/5.0248712
    Voir la publication sur Hal
  • 2025
    Ksenia Kozhanova, Song Zhao, Raphaël Loubère, Pierre Boivin. A hybrid a posteriori MOOD limited lattice Boltzmann method to solve compressible fluid flows – LBMOOD. Journal of Computational Physics, 2025, 521, Part 2, pp.113570. ⟨10.1016/j.jcp.2024.113570⟩. ⟨hal-04802259⟩ Plus de détails...

    A hybrid a posteriori MOOD limited lattice Boltzmann method to solve compressible fluid flows – LBMOOD

    In this paper we blend two lattice-Boltzmann (LB) numerical schemes with an a posteriori Multi-dimensional Optimal Order Detection (MOOD) paradigm to solve hyperbolic systems of conservation laws in 1D and 2D. The first LB scheme is robust to the presence of shock waves but lacks accuracy on smooth flows. The second one has a second-order of accuracy but develops non-physical oscillations when solving steep gradients. The MOOD paradigm produces a hybrid LB scheme via smooth and positivity detectors allowing to gather the best properties of the two LB methods within one scheme. Indeed, the resulting scheme presents second order of accuracy on smooth solutions, essentially non-oscillatory behaviour on irregular ones, and, an ‘almost fail-safe’ property concerning positivity issues. The numerical results on a set of sanity test cases and demanding ones are presented assessing the appropriate behaviour of the hybrid LBMOOD scheme in 1D and 2D.
    Ksenia Kozhanova, Song Zhao, Raphaël Loubère, Pierre Boivin. A hybrid a posteriori MOOD limited lattice Boltzmann method to solve compressible fluid flows – LBMOOD. Journal of Computational Physics, 2025, 521, Part 2, pp.113570. ⟨10.1016/j.jcp.2024.113570⟩. ⟨hal-04802259⟩
    Journal: Journal of Computational Physics
    Date de publication: 01-01-2025
    Auteurs:
    Liste des documents:
    Digital object identifier (doi): http://dx.doi.org/10.1016/j.jcp.2024.113570
    Voir la publication sur Hal
  • 2025
    J. Carmona, I. Raspo, V. Moureau, P. Boivin. A simple explicit thermodynamic closure for multi-fluid simulations including complex vapor–liquid equilibria: Application to NH3-H2O mixtures. International Journal of Multiphase Flow, 2025, 182, pp.105044. ⟨10.1016/j.ijmultiphaseflow.2024.105044⟩. ⟨hal-05007303⟩ Plus de détails...

    A simple explicit thermodynamic closure for multi-fluid simulations including complex vapor–liquid equilibria: Application to NH3-H2O mixtures

    This paper presents a new thermodynamic closure formulation appropriate for the simulation of subcritical multiphase flows, where two liquid/vapor components need to be considered, in addition of an arbitrary number of perfect gas non-condensable components. Assuming each component to follow the Noble-Abel Stiffened Gas (NASG) equation of state allows to derive a fully explicit formulation for the mixture pressure. A matching phase transition solver is then proposed to compute efficiently and accurately the thermochemical equilibrium of the said mixture. The model capabilities are then illustrated through a two-dimensional simulation of a liquid ammonia tank leak into 80%-saturated humid air, where water is found to significantly condensate when interacting with the ammonia jet.
    J. Carmona, I. Raspo, V. Moureau, P. Boivin. A simple explicit thermodynamic closure for multi-fluid simulations including complex vapor–liquid equilibria: Application to NH3-H2O mixtures. International Journal of Multiphase Flow, 2025, 182, pp.105044. ⟨10.1016/j.ijmultiphaseflow.2024.105044⟩. ⟨hal-05007303⟩
    Journal: International Journal of Multiphase Flow
    Date de publication: 01-01-2025
    Auteurs:
    Liste des documents:
    Digital object identifier (doi): http://dx.doi.org/10.1016/j.ijmultiphaseflow.2024.105044
    Voir la publication sur Hal
  • 2024
    D. Morvan, G. Accary. How to Properly Account for Slope Effect in Byram’s Convective Number: A New Proposal. Fire Technology, 2024, ⟨10.1007/s10694-024-01670-1⟩. ⟨hal-04960163⟩ Plus de détails...

    How to Properly Account for Slope Effect in Byram’s Convective Number: A New Proposal

    A modified expression of Byram's convective number is proposed to account for the effect of slope in wildland fires. Instead of decomposing the forces of wind and buoyancy, as is done for fire propagating over flat terrain, both forces are projected in directions parallel and perpendicular to the ground. For steep slopes, this correction results in a convective number that is significantly different from the formulation proposed by Nelson Jr (Int J Wildland Fire 24:1001-1007, 2015. 10.1071/ WF14155). A database consisting of 11 experimental fires carried out in shrublands was used to support the use of the new convective number formula. In addition, 14 numerical simulations were carried out to better highlight the action of induced wind on wildfires behaviour.

    D. Morvan, G. Accary. How to Properly Account for Slope Effect in Byram’s Convective Number: A New Proposal. Fire Technology, 2024, ⟨10.1007/s10694-024-01670-1⟩. ⟨hal-04960163⟩
    Journal: Fire Technology
    Date de publication: 27-10-2024
    Auteurs:
    Liste des documents:
    Digital object identifier (doi): http://dx.doi.org/10.1007/s10694-024-01670-1
    Voir la publication sur Hal
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Dernières rencontres scientifiques

Actualités Archives récentes

Projets en cours

Soutenances de thèses et HDR

Archives récentes Archives
21 février 2024 - Study of Thermoacoustic Instabilities using the Lattice Boltzmann Method / PhD Defense Karthik Bhairapurada
Doctorant : Karthik BHAIRAPURADA

Date : le mercredi 21 février 2024 à 14h00 dans l’amphithéâtre du LMA ; 4, impasse Nikola Tesla ; 13013 Marseille

Abstract : In the quest to address global warming, renewable energy has emerged as a critical focus. Yet, the reality of our current energy landscape makes the complete abandonment of combustion technologies unfeasible. Innovations such as 'Lean Burn' combustion and the integration of cleaner fuels like Hydrogen offer a compromise, balancing immediate energy demands with environmental objectives. However, these advancements also introduce significant challenges, especially the heightened risk of thermoacoustic instabilities in combustion systems, which could lead to catastrophic failures.
Traditional experimental methods for studying and mitigating these instabilities are not only prohibitively expensive but also often impractical. Consequently, there is a growing advocacy for the adoption of advanced numerical methods as efficient and cost-effective alternatives. This thesis underscores the potential of one such method, known as the Lattice Boltzmann Method (LBM). LBM is a numerical method renowned for its distinctive algorithmic structure that facilitates linear interactions between adjacent nodes and enables the local evaluation of non-linear terms. These inherent features endow LBM with computational efficiency and low dissipation properties for acoustics transport, making it a promising tool for simulating flame-acoustic interactions and addressing thermoacoustic instabilities.
This research validates the capabilities of LBM in effectively resolving such instabilities. Through foundational assertions of simple flame-acoustic interactions and simulations within narrow channels, the reliability of the method for investigating combustion instabilities across various scenarios is established. Furthermore, the thesis also explores the field of 'Combustion Noise', demonstrating the potential of LBM in investigating sound generation and propagation phenomena, particularly in hydrogen-fueled combustion scenarios. Finally, the robustness and versatility of LBM in handling thermoacoustic instabilities of turbulent reactive flows in complex geometries are demonstrated through the simulation of an aeronautical burner configuration called PRECCINSTA.
Overall, guided by the importance of innovative numerical methods in bridging the gap between current energy needs and long-term environmental sustainability, this thesis underscores the potential of LBM. Through varied investigations, it not only highlights the capabilities of the method but also contributes to a broader understanding of thermoacoustic phenomena across various settings.

Jury

Mr. Pierre BOIVIN                             Chargé de Recherche, CNRS, France                              Directeur de thèse
Mr. Bruno DENET                             Professeur, AMU, France                                                   Co-Directeur de thèse
Ms. Françoise BAILLOT                   Professeure, CORIA, France                                              Rapporteur
Mr. Vadim KURDYUMOV                 Senior Researcher, CIEMAT, Espagne                               Rapporteur
Mr. Luc VERVISCH                          Professeur, CORIA, France                                                Examinateur
Mr. Laurent GICQUEL                      Senior Researcher, CERFACS, France                              Examinateur
Mr. Julien FAVIER                            Professeur, AMU, France                                                    Président
10 mars 2023 - Modélisation des écoulements induits par le feu à l'aide des méthodes de Lattice Boltzmann / Soutenance de thèse Mostafa Taha
Doctorant : Mostafa TAHA

Date : le 10 mars 2023 à 14h00 / Amphi 3 ; Centrale Marseille - Plot 6

Résumé : En raison de leur coût de calcul attractif, leurs capacités pour le calcul massivement parallèle, et la facilité à traiter des géométries complexes en utilisant des maillages cartésiens à plusieurs niveaux, les méthodes de Boltzmann sur réseau (LBM) ont connu un intérêt accru dans les domaines universitaire et industriel lors de la dernière décennie. Dans ce travail de doctorat, et pour la première fois, une méthode de Boltzmann sur réseau hybride à base de pression est développée pour simuler des écoulements contrôlés par les forces de flottabilité caractéristiques des incendies avec haute fidélité. Les formulations compressibles et à faible nombre de Mach sont considérées et sont couplées avec des modèles de turbulence et de combustion à l'état de l'art afin de prédire correctement le comportement instationnaire et les caractéristiques de ces écoulements. La cohérence, la mise en œuvre et la robustesse de la LBM proposée sont vérifiées par des cas test canoniques 1-D et 2-D, impliquant la colonne de pression 1-D et les instabilités 2-D de Rayleigh-Bénard et Rayleigh-Taylor. Le modèle LBM est ensuite appliqué à la simulation aux grands échelles (LES) des champs proche et lointain de panaches contrôlés par les forces de flottabilité, chacune de ces régions étant caractérisée par sa propre dynamique. La LES de la région de type panache (c.-à-d. champ lointain) montre la capacité du modèle à reproduire le comportement caractéristique de la région de champ lointain d’un panache forcé. Les profils axiaux et radiaux de vitesse et de température concordent bien avec les données expérimentales, théoriques et numériques. La simulation d'un panache d’hélium de grande taille est ensuite effectuée pour évaluer la capacité du modèle à reproduire la dynamique de la région en champ proche.  Différents modèles de turbulence de sous-maille sont comparés dans ces simulations et il a été constaté, comme dans les études précédentes, que les résultats sont plus sensibles à la résolution spatiale qu’au modèle de turbulence. Il est essentiel d’avoir un maillage bien résolu à la base du panache pour saisir la formation d’instabilités entraînées par la flottabilité qui se développent pour générer des structures turbulentes et régir la dynamique du panache. Le mécanisme de "puffing" a été correctement prédit et les profils axiaux et radiaux de la vitesse et de la fraction massique d’hélium correspondaient aux données expérimentales et aux simulations numériques antérieures fondées sur le solveur classique de l’équation de Navier-Stokes. Enfin, une simulation aux grandes échelles d’un feu de méthane à grande échelle purement contrôlé par les forces flottabilité a été réalisées en utilisant le modèle EDC comme modèle de combustion et un modèle simplifié de rayonnement utilisant la fraction rayonnée. Le solveur a pu prédire correctement la dynamique du feu. Ces cas de test ont montré que le modèle LBM développé est entièrement capable de simuler avec fidélité les écoulements associés à des applications incendie et ce à un coût de calcul inférieur aux solveurs classiques des équations de Navier-Stokes.

Jury : 
Encadrement
Pierre Boivin (M2P2): Directeur de la thèse
Aymeric Lamorlette (IUSTI): Co-Directeur de thèse
Jean-louis Consalvi (IUSTI): Co-Encadrant de thèse

Membres de jury
Arnaud Trouvé (University of Maryland, USA): Rapporteur
Bénédicte Cuenot (CERFACS, France): Rapporteure
Bart Merci (Ghent University, Belgium): Examinateur
Lucie Merlier (INSA Lyon, France): Examinatrice
Olivier Vauquelin (Aix-Marseille Université, France): Examinateur (Président)