By clicking on the button below, you can consult the list of the laboratory's latest scientific publications in the "M2P2’s HAL collection”, which can be searched by year, author, type of document (scientific article, book, book chapter, conference proceedings, etc.).
For a certain number of articles, you have access to the full text in post-print or publisher pdf format.
Paul Chambonniere, Evita Dollon, Alexandra Dimitriades-Lemaire, Jean-François Sassi, Florian Delrue. Scalable model development of carbon photosynthetic assimilation and partitioning in a green microalga during nitrogen starvation. Bioresource Technology, 2026, 441, pp.133585. ⟨10.1016/j.biortech.2025.133585⟩. ⟨cea-05424045⟩ Plus de détails...
Lipid accumulation in green microalgae is induced by stresses (e.g. nitrogen starvation) which compromise photosynthetic activity resulting in significantly lower biomass productivity than under nutrient replete conditions. While algae photosynthetic growth has been well characterized and modelled under nutrient replete conditions, the loss of photosynthetic activity during nitrogen starvation lacks specific studies to determine suitable parameterisation. The loss of photosynthetic activity of the lipid-accumulating microalgae Chlorella vulgaris NIES 227 was studied under varying light intensities during nitrogen starvation. Partition of assimilated carbon between the different macromolecules pools (carbohydrates, lipids, and proteins) was concomitantly monitored. The results showed that the decrease of photosynthetic activity correlated well to the increase of cell C:N ratio $(R^2$ = 0,883, $N$=65) enabling to develop a model of microalgae growth and carbon partition under nitrogen starvation. Biomass dry-weight increase could be predicted with good accuracy ($R^2$ = 0,940, $N$ = 66), as total lipid and carbohydrate production could also be predicted with fair accuracy ($R^2$=0,841 and 0,618 respectively). The present study henceforth showed that modelling microalgae productivity based on photosynthetic activity inferred from local light intensity, as done in scalable models under nutrient replete conditions, may be extended to nitrogen starvation conditions and enabled the prediction of lipids and carbohydrates productivity. The model proposed should thus prove useful in optimizing photobioreactors design for the production of important energetic molecules based on light distribution knowledge.
Paul Chambonniere, Evita Dollon, Alexandra Dimitriades-Lemaire, Jean-François Sassi, Florian Delrue. Scalable model development of carbon photosynthetic assimilation and partitioning in a green microalga during nitrogen starvation. Bioresource Technology, 2026, 441, pp.133585. ⟨10.1016/j.biortech.2025.133585⟩. ⟨cea-05424045⟩
Jinhua Lu, Thomas Gregorczyk, Song Zhao, Pierre Boivin. Phase-field-based recursive regularized multiphase lattice Boltzmann model with a consistent pressure scheme. International Journal of Multiphase Flow, 2026, 195, pp.105500. ⟨10.1016/j.ijmultiphaseflow.2025.105500⟩. ⟨hal-05344425⟩ Plus de détails...
Multiphase lattice Boltzmann models with enhanced stability and no deviation terms.
• Consistent pressure scheme decoupled from density and viscosity variations.
• The proposed model shows superior numerical stablity and accuracy.
Jinhua Lu, Thomas Gregorczyk, Song Zhao, Pierre Boivin. Phase-field-based recursive regularized multiphase lattice Boltzmann model with a consistent pressure scheme. International Journal of Multiphase Flow, 2026, 195, pp.105500. ⟨10.1016/j.ijmultiphaseflow.2025.105500⟩. ⟨hal-05344425⟩
Marc Le Boursicaud, Jean-Louis Consalvi, Pierre Boivin. Prediction of hydrogen–ammonia blends autoignition. Combustion and Flame, 2026, 285, pp.114713. ⟨10.1016/j.combustflame.2025.114713⟩. ⟨hal-05469163⟩ Plus de détails...
The growing interest in hydrogen as an alternative energy vector has raised new technological challenges, in particular regarding its storage. This has motivated increasing attention to ammonia as a hydrogen carrier. In parallel, the use of hydrogen-ammonia blends as combustible fuels has attracted significant interest, as such mixtures can be easier to handle in some applications than pure hydrogen, while still enabling carbon-free combustion.In this context, the present study focuses on modeling the ignition of arbitrary gaseous hydrogen-ammonia-air blends. First, the minimal chemical description required to accurately capture the ignition delay of these mixtures is identified, revealing three main ignition regimes. Ignition delay formulas are then derived for these regimes by extending methods previously developed for pure hydrogen and syngas. The resulting ignition time expressions are subsequently combined into a unified formulation, valid across a wide range of pressures, temperatures, and fuel compositions. Finally, modifications to a recently published passive scalar model for CFD tools are introduced so as to accurately predict ignition events in hydrogen-ammonia-air mixtures while reducing computational cost. Novelty and
Marc Le Boursicaud, Jean-Louis Consalvi, Pierre Boivin. Prediction of hydrogen–ammonia blends autoignition. Combustion and Flame, 2026, 285, pp.114713. ⟨10.1016/j.combustflame.2025.114713⟩. ⟨hal-05469163⟩
Pierre Magnico. Wall morphology dependence of rare gas Knudsen diffusion in silica and graphite slit nanopore: A molecular dynamics study. Vacuum, 2025, 242, pp.114756. ⟨10.1016/j.vacuum.2025.114756⟩. ⟨hal-05273657⟩ Plus de détails...
Gas/wall collision mechanisms play a key role in Knudsen diffusion process. In particular, the channel wall structure has a major influence in mass transfer. So, we investigate the influence of the wall roughness, anisotropy and porosity on the self-diffusion of helium and neon in nanochannels. Three materials are proposed: graphite and β-cristobalite and amorphous silica. The study makes it possible to analyze, in function of temperature, the correlation between 1/the ballistic/diffusion transition regime of the surface gas transfer, 2/the transition of the bouncing process to a linear increase of the bounce number with time and 3/the shape of the surface residence time distribution characterized by a Fréchet like distribution at short time and an exponential decay at long time. As concerns the amorphous SiO 2 , the bounce must be redefined owing to the transfer inside the material which is dominated by a cage effect. The anisotropy effect on collision process and Knudsen diffusion is analyzed by means of a tensorial computation of the tangential momentum accommodation coefficient and of the mean square displacement. Using the Langevin at the channel scale and the Arya model, the ballistic/diffusion transition time of the mean square displacement is related to the collision frequency and the collision number required for the velocity to be uncorrelated. A stochastic model confirms the molecular dynamics results with β-SiO 2 channel: The behavior of the Knudsen diffusion coefficient according to the Arrhenius law and the influence of collision frequency on transition time.
Pierre Magnico. Wall morphology dependence of rare gas Knudsen diffusion in silica and graphite slit nanopore: A molecular dynamics study. Vacuum, 2025, 242, pp.114756. ⟨10.1016/j.vacuum.2025.114756⟩. ⟨hal-05273657⟩
Hugo Taligrot, Vivian Dam Quang, Sébastien Wurtzer, Mathias Monnot, Damien Chaudanson, et al.. Investigating the impact of low-pressure reverse osmosis membrane aging and heterogeneity on performance: A study of virus and microplastic retention. Separation and Purification Technology, 2025, 376, ⟨10.1016/j.seppur.2025.133924⟩. ⟨hal-05468499⟩ Plus de détails...
The increasing demand for freshwater, alongside increasing microplastics and persistent microbiological contaminants, is degrading water quality and highlighting the need for advanced treatment processes with better retention performance. Low-pressure reverse osmosis (LPRO) presents a promising solution for producing drinking water from freshwater, offering an optimal balance between water quality and production costs. However, uncertainties remain regarding the long-term evolution of these performance metrics, which are primarily based on data from reverse osmosis membranes used in seawater desalination. This study investigates the impact of membrane aging on LPRO performance and the role of membrane heterogeneity within a spiral-wound module. New and long-term aged membranes were compared in terms of permeability, salt retention, and virus retention, with additional analysis of microplastic retention. Natural membrane aging led to increased permeability and decreased salt retention, without affecting virus and microplastic retention, for which retention remained total across the tested coupons. Performance heterogeneity was observed depending on the position of the coupons within the module, with a more significant degradation at the beginning of the module and winding, likely due to mechanical effects associated with higher pressure and deformation. In contrast, coupons located at the end of the module and winding showed minimal performance impact. No impact was observed on virus and microplastic retention, which remained complete, confirming that viruses do not pass through an intact membrane but rather through membrane defects and seals. Autopsy of the LPRO modules revealed membrane defects (glue patches, minor and major folds) that affected membrane performance. In particular, the presence of apparent major folds led to significant performance degradation, with lower permeability and salt retention. The folds also caused the passage of viruses into the permeate, while microplastic retention remained unaffected. The virus passing through the permeate of an LPRO pilot would therefore be due to defects in the membrane and Orings of the modules.
Hugo Taligrot, Vivian Dam Quang, Sébastien Wurtzer, Mathias Monnot, Damien Chaudanson, et al.. Investigating the impact of low-pressure reverse osmosis membrane aging and heterogeneity on performance: A study of virus and microplastic retention. Separation and Purification Technology, 2025, 376, ⟨10.1016/j.seppur.2025.133924⟩. ⟨hal-05468499⟩
Ziyin Chen, Song Zhao, Bruno Denet, Christophe Almarcha, Pierre Boivin. A three-dimensional study on premixed flame propagation in narrow channels considering hydrodynamic and thermodiffusive instabilities. Combustion and Flame, 2025, 281, pp.114392. ⟨10.1016/j.combustflame.2025.114392⟩. ⟨hal-05344216⟩ Plus de détails...
In numerical studies of quasi-2D problems, such as laminar flame propagation through a slit, the quasi-2D assumption is commonly applied to simplify the problem. However, the impact of the third dimension (in the thickness between walls) can be significant due to strong curvature. The intrinsic Darrieus-Landau instability, the Saffman-Taylor instability, and the thermodiffusive instability lead to curved flame fronts in both the transverse and normal directions and radically change the global flame speed. This study investigates the interaction of these instabilities and their impact on premixed flames freely propagating in narrow channels. Two lean fuel-air mixtures are considered: one with unity Lewis number Le = 1 and another with Le = 0.5. A single-step Arrhenius-type reaction is used for combustion modeling. Joulin Sivashinsky's model [1], termed the 2D+ model, is implemented to capture the confinement effect due to walls. By comparing 3D Direct Numerical Simulations (DNS) and 2D simulations at unity Le, we find that the 2D+ model accurately reproduces confinement effects for channel width h up to 3.6δ T (δ T : thermal flame thickness), extending the validity of Darcy's law.
However, for larger h, interactions between flame curvatures in two directions result in higher flame surface increment and consumption speed. Besides, for 3D cases with Le = 0.5, positive curvature regions on the flame front primarily contribute to the global reaction due to the Lewis effect. Statistical studies on flame dynamics between walls in 3D cases are also
Ziyin Chen, Song Zhao, Bruno Denet, Christophe Almarcha, Pierre Boivin. A three-dimensional study on premixed flame propagation in narrow channels considering hydrodynamic and thermodiffusive instabilities. Combustion and Flame, 2025, 281, pp.114392. ⟨10.1016/j.combustflame.2025.114392⟩. ⟨hal-05344216⟩
Nicolas Bueno, Viktória Stanová, Philippe Pibarot, Julien Favier. Mechanical Strain Analyses in Silicone-Made Aortic Valve. 2025, 50th congress of the.., ⟨10.46298/mbj.16179⟩. ⟨hal-05191731v2⟩ Plus de détails...
Nicolas Bueno, Viktória Stanová, Philippe Pibarot, Julien Favier. Mechanical Strain Analyses in Silicone-Made Aortic Valve. 2025, 50th congress of the.., ⟨10.46298/mbj.16179⟩. ⟨hal-05191731v2⟩
Yasmine Masmoudi, Thierry Tassaing, Daniel Borschneck, Elisabeth Badens. Supercritical CO2 Sorption Within Polymers Used in Medical Devices and Their Packaging. Journal of Applied Polymer Science, 2025, ⟨10.1002/app.58100⟩. ⟨hal-05328657⟩ Plus de détails...
ABSTRACT Thermodynamic and kinetic aspects of CO 2 sorption and the resulting swelling are investigated in several commercial polymer‐based medical devices and packaging materials, using in situ FTIR spectroscopy under mild processing conditions (40°C–50°C and 8–20 MPa). At thermodynamic equilibrium, significant CO 2 uptake (up to 41% w/w) and volume swelling (up to 62%) are observed in silicones and poly(L‐lactide‐co‐ε‐caprolactone) copolymers, whereas limited sorption occurs in polyolefins (polypropylene, high‐density polyethylene) and in polyester films coated with low‐density polyethylene. These differences are attributed to intrinsic polymer properties; sorption and swelling are favored in polymers combining a highly amorphous structure with elevated chain mobility, and the presence of functional groups with chemical affinity for CO 2 . Among the studied materials, glycol‐modified polyethylene terephthalate exhibits a distinct behavior, characterized by initial CO 2 uptake followed by pressure‐induced crystallization after several hours of exposure.
Yasmine Masmoudi, Thierry Tassaing, Daniel Borschneck, Elisabeth Badens. Supercritical CO2 Sorption Within Polymers Used in Medical Devices and Their Packaging. Journal of Applied Polymer Science, 2025, ⟨10.1002/app.58100⟩. ⟨hal-05328657⟩
Loïc Macé, Luc Vandenbulcke, Jean-Michel Brankart, Jean-François Grailet, Pierre Brasseur, et al.. Three-stream modelling of radiative transfer for the simulation of Black Sea biogeochemistry in a NEMO framework. Geoscientific Model Development (GMD), 2025, ⟨10.5194/egusphere-2025-4973⟩. ⟨hal-05400857⟩ Plus de détails...
Abstract. In this paper, we propose a three-stream ocean radiative transfer (RT) module as an extension of the NEMO ocean modelling framework. This module solves the subsurface irradiance field in 1D water columns, discriminating between two downward streams, direct and scattered, and a backscattered upward stream. The module solves 33 wavebands ranging between 250 and 4000 nm, with a finer 25 nm resolution in the visible range. The sea surface reflectance is also calculated as a model output, based on the ratio between the upward and downward irradiances at the air-sea interface. An optional feedback towards NEMO is presented, enabling the use of irradiances to compute temperature in the hydrodynamics. The module also includes a stochastic version in which the inherent optical properties of the main optically active components of seawater can be perturbed. This mode is meant to account for uncertainty in the modelling of marine optics. This module is can be plugged to any NEMO configuration, with the computation of optical properties either driven by a biogeochemical model or directly forced into the RT module. We apply this module in a test case for the Black Sea, coupled with the physical-biogeochemical framework NEMO 4.2.0-BAMHBI. We find that substituting the existing radiative transfer scheme with our model unlocks the ability to simulate radiometric variables that can be compared more truthfully to observations, both in situ and from remote-sensing. We also find that using irradiances to compute the temperature and PAR in the model maintains consistency in the calculation of physical and biogeochemical variables in the model, such as temperature or chlorophyll concentration, while enabling additional capabilities in the model in the simulation of radiometric quantities.
Loïc Macé, Luc Vandenbulcke, Jean-Michel Brankart, Jean-François Grailet, Pierre Brasseur, et al.. Three-stream modelling of radiative transfer for the simulation of Black Sea biogeochemistry in a NEMO framework. Geoscientific Model Development (GMD), 2025, ⟨10.5194/egusphere-2025-4973⟩. ⟨hal-05400857⟩
Kevin Turgut, Ashwin Chinnayya, Pierre Boivin, Omar Dounia. A simplified thermodynamically-consistent single-step mechanism for hydrogen combustion. International Journal of Hydrogen Energy, 2025, 177, pp.151527. ⟨10.1016/j.ijhydene.2025.151527⟩. ⟨hal-05404957⟩ Plus de détails...
Effective combustion modeling relies on the precise estimation of hydrogenair combustion characteristics. In this sense, Millán-Merino and Boivin [1] designed a single-step mechanism for hydrogen combustion that accurately recovers the adiabatic flame temperature using a variable stoichiometric coefficient formalism. The present study proposes a drastic simplification of this approach (further reducing computational cost and complexity) and formally clarifies the contribution of the variable stoichiometric coefficients and their evolution across the flame internal structure.
Kevin Turgut, Ashwin Chinnayya, Pierre Boivin, Omar Dounia. A simplified thermodynamically-consistent single-step mechanism for hydrogen combustion. International Journal of Hydrogen Energy, 2025, 177, pp.151527. ⟨10.1016/j.ijhydene.2025.151527⟩. ⟨hal-05404957⟩
