64 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR31 papers
- Université de PerpignanFR25 papers
- University of LuxembourgLU4 papers
- Centre de Recherche d'Albi en génie des Procédés, des SOlides Divisés, de l'Énergie et de l'EnvironnementFR3 papers
- Institut PascalFR3 papers
- Laboratoire Plasma et Conversion d'EnergieFR3 papers
- Université Clermont AuvergneFR3 papers
- Université Toulouse III - Paul SabatierFR3 papers
- Centre d'Énergétique et de Thermique de LyonFR2 papers
- Centre de Recherches sur la Cognition AnimaleFR2 papers
- École Polytechnique Fédérale de LausanneCH2 papers
- Institut National Polytechnique de ToulouseFR2 papers
42 papers
A posteriori study of Thermal-Large Eddy Simulation in solar receiver operating conditions
Yanis Zatout, Françoise Bataille, Adrien Toutant
This study investigates Thermal-Large Eddy Simulations (T-LES) of anisothermal and turbulent channel flows under physical conditions representative of solar receivers. Solving the…
Parameter identification of lithium-ion batteries: a comparative study of various models and optimization techniques for battery modeling
Johan Sebastian Suarez Sepúlveda, Edgar Hernando Sepúlveda-Oviedo, Bruno Jammes +1
This work presents a comparative study of optimization techniques for parameter identification in equivalent electrical models of lithium-ion batteries. The 2RC model is applied to…
Quantifying time in Monte Carlo simulations: application to relaxation processes and AC susceptibilities of magnetic nanoparticles assemblies
A. Morjane, J. -G. Malherbe, J. -J. Alonso +2
The study of the response of magnetic nanoparticles (MNP) assemblies to an external alternating magnetic field is of great interest for applications such as hyperthermia. The key q…
Optimal scheduling of energy and mass flows based on networked multi-carrier hubs formulation: a general framework
Mohamed Tahar Mabrouk, Mahdi Majidniya, Bruno Lacarrière
Due to increased energy demand and environmental concerns such as greenhouse gas emissions and natural resources depletion, optimizing energy and raw materials usage has recently d…
Plasmon-Plasmon Interaction in Nanoparticle Assemblies: Role of the Dipole-Quadrupole Coupling
Olivier Masset, Roland Bastardis, Francois Vernay
The synthesis of metallic nanoparticle assemblies is nowadays well-controlled, such that these systems offer the possibility of controlling light at a sub-wavelength scale, thanks,…
Upper bounds on broadband absorption
Stéphane Collin, Maxime Giteau
We address the question of the optimal broadband absorption of waves in an open, dissipative system. We develop a general framework for absorption induced by multiple overlapping r…
Low-frequency signature of magnetization nutation in nanomagnets
M. P. Adams, R. Bastardis, A. Michels +1
In this work, we show that surface anisotropy in nanomagnets induces a nutational motion of their magnetization at various frequencies, the lowest of which can be described by the…
Fault Detection and Monitoring using a Data-Driven Information-Based Strategy: Method, Theory, and Application
Camilo Ramírez, Jorge F. Silva, Ferhat Tamssaouet +2
The ability to detect when a system undergoes an incipient fault is of paramount importance in preventing a critical failure. Classic methods for fault detection (including model-b…
Breaking the Reynolds Analogy: Decoupling Turbulent Heat and Momentum Transport via Spanwise Wall Oscillation in Wall-Bounded Flow
Lou Guérin, Cédric Flageul, Laurent Cordier +2
This work investigates spanwise wall oscillation (SWO) as a method to preferentially enhance heat transfer over drag in turbulent channel flow. Direct numerical simulations at $Re_…
Spatial magnetization profile in spherical nanomagnets with surface anisotropy: Green's function approach
M. P. Adams, A. Michels, H. Kachkachi
We consider a single spherical nanomagnet and investigate the spatial magnetization profile in the continuum approach, using the Green's functio…
A physical model and a Monte Carlo estimate for the specific intensity spatial derivative, angular derivative and geometric sensitivity
Paule Lapeyre, Zili He, Stéphane Blanco +11
Starting from the radiative transfer equation and its usual boundary conditions, the objective of this work is to design Monte Carlo algorithms estimating the specific intensity sp…
Magnetic neutron scattering from spherical nanoparticles with Neel surface anisotropy: Atomistic simulations
Michael P. Adams, Andreas Michels, Hamid Kachkachi
We consider a dilute ensemble of randomly-oriented noninteracting spherical nanomagnets and investigate its magnetization structure and ensuing neutron-scattering response by numer…
Magnetic neutron scattering from spherical nanoparticles with Neel surface anisotropy: Analytical treatment
Michael P. Adams, Andreas Michels, Hamid Kachkachi
The magnetization profile and the related magnetic small-angle neutron scattering cross section of a single spherical nanoparticle with Neel surface anisotropy is analytically inve…
Surface-induced reduction of the switching field in nanomagnets
R. Bastardis, H. Kachkachi
Magnetization reversal in a many-spin nanomagnet subjected to an rf magnetic field, on top of a DC magnetic field, is studied by numerically solving the system of coupled (damped)…
Time profile of temperature rise in assemblies of nanomagnets
J. -L. Déjardin, H. Kachkachi
We compute the heat generated by (non-interacting) nanomagnets subjected to an alternating magnetic field (AMF) and study its transfer to the hosting medium and environment. For th…
A posteriori tests of subgrid-scale models in an isothermal turbulent channel flow
Dorian Dupuy, Adrien Toutant, Françoise Bataille
This paper studies the large-eddy simulation (LES) of isothermal turbulent channel flows. We investigate zero-equation algebraic models without wall function or wall model: functio…
Effect of the Reynolds number on turbulence kinetic energy exchanges in flows with highly variable fluid properties
Dorian Dupuy, Adrien Toutant, Françoise Bataille
Spatial and spectral energy exchanges associated with the turbulence kinetic energy per unit mass, or half-trace of the velocity covariance tensor, are studied in an anisothermal l…
A priori tests of subgrid-scale models in an anisothermal turbulent channel flow at low mach number
Dorian Dupuy, Adrien Toutant, Françoise Bataille
The subgrid-scale modelling of a low Mach number strongly anisothermal turbulent flow is investigated using direct numerical simulations. The study is based on the filtering of the…
Specific absorption rate of magnetic nanoparticles: nonlinear AC susceptibility
J. -L. Déjardin, F. Vernay, H. Kachkachi
In the context of magnetic hyperthermia, several physical parameters are used to optimize the heat generation and these include the nanoparticles concentration and the magnitude an…
Numerical simulations of unsteady viscous incompressible flows using general pressure equation
Adrien Toutant
In fluid dynamics, an important problem is linked to the knowledge of the fluid pressure. Recently, another approach to study incompressible fluid flow was suggested. It consists i…
General and exact pressure evolution equation
Adrien Toutant
A crucial issue in fluid dynamics is related to the knowledge of the fluid pressure. A new general pressure equation is derived from compressible Navier-Stokes equation. It is argu…
Single-particle versus collective effects in assemblies of nanomagnets: screening
F. Vernay, H. Kachkachi
We discuss experimentally realizable situations in which surface effects may "screen out" the dipolar interactions in an assembly of nanomagnets, which then behaves as a noninterac…
Convergence issues in derivatives of Monte Carlo null-collision integral formulations: a solution
J-M Tregan, S. Blanco, J. Dauchet +5
When a Monte Carlo algorithm is used to evaluate a physical observable A, it is possible to slightly modify the algorithm so that it evaluates simultaneously A and the derivatives…
Magnetization nutation induced by surface effects in nanomagnets
Roland Bastardis, Francois Vernay, Hamid Kachkachi
We investigate the magnetization dynamics of ferromagnetic nanoparticles in the atomistic approach taking account of surface anisotropy and the spin misalignment it causes. We demo…