Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Peaudecerf, François J."'
In Nature there are significant relationships known between microorganisms from two kingdoms of life, as in the supply of vitamin B$_{12}$ by bacteria to algae. Such interactions motivate general investigations into the spatio-temporal dynamics of me
Externí odkaz:
http://arxiv.org/abs/2312.08346
Autor:
Mcnair, Richard, Temprano-Coleto, Fernando, Peaudecerf, François J., Gibou, Frédéric, Luzzatto-Fegiz, Paolo, Jensen, Oliver E., Landel, Julien R.
Experiments have shown that surfactant introduced to a liquid-filled maze can find the solution path. We reveal how the maze-solving dynamics arise from interactions between the added surfactant and endogenous surfactant present at the liquid surface
Externí odkaz:
http://arxiv.org/abs/2311.08133
Autor:
Temprano-Coleto, Fernando, Smith, Scott M., Peaudecerf, François J., Landel, Julien R., Gibou, Frédéric, Luzzatto-Fegiz, Paolo
Publikováno v:
PNAS Vol.120 No.3 e2211092120 (2023)
Recent experimental and computational investigations have shown that trace amounts of surfactants, unavoidable in practice, can critically impair the drag reduction of superhydrophobic surfaces (SHSs), by inducing Marangoni stresses at the air-liquid
Externí odkaz:
http://arxiv.org/abs/2103.16945
Autor:
Tomlinson, Samuel D., Peaudecerf, François J., Temprano-Coleto, Fernando, Gibou, Frédéric, Luzzatto-Fegiz, Paolo, Jensen, Oliver E., Landel, Julien R.
Publikováno v:
In International Journal of Heat and Fluid Flow October 2023 103
Publikováno v:
Eur. Phys. J. E 44:32 (2021)
Bacteria can chemotactically migrate up attractant gradients by controlling run-and-tumble motility patterns. In addition to this well-known chemotactic behaviour, several soil and marine bacterial species perform chemokinesis: they adjust their swim
Externí odkaz:
http://arxiv.org/abs/1908.05050
Autor:
Landel, Julien R., Peaudecerf, François J., Temprano-Coleto, Fernando, Gibou, Frédéric, Goldstein, Raymond E., Luzzatto-Fegiz, Paolo
Superhydrophobic surfaces (SHSs) have the potential to reduce drag at solid boundaries. However, multiple independent studies have recently shown that small amounts of surfactant, naturally present in the environment, can induce Marangoni forces that
Externí odkaz:
http://arxiv.org/abs/1904.01194
Autor:
Peaudecerf, François J., Bunbury, Freddy, Bhardwaj, Vaibhav, Bees, Martin A., Smith, Alison G., Goldstein, Raymond E., Croze, Ottavio A.
Publikováno v:
Phys. Rev. E 97, 022411 (2018)
The exchange of diffusive metabolites is known to control the spatial patterns formed by microbial populations, as revealed by recent studies in the laboratory. However, the matrices used, such as agarose pads, lack the structured geometry of many na
Externí odkaz:
http://arxiv.org/abs/1708.01716
Publikováno v:
PNAS, vol. 114 no. 28, p. 7254-7259 (2017)
Superhydrophobic surfaces (SHSs) have the potential to achieve large drag reduction for internal and external flow applications. However, experiments have shown inconsistent results, with many studies reporting significantly reduced performance. Rece
Externí odkaz:
http://arxiv.org/abs/1702.04180
Autor:
Egan, Raphael, Guittet, Arthur, Temprano-Coleto, Fernando, Isaac, Tobin, Peaudecerf, François J., Landel, Julien R., Luzzatto-Fegiz, Paolo, Burstedde, Carsten, Gibou, Frederic
Publikováno v:
In Journal of Computational Physics 1 March 2021 428
Publikováno v:
Phys. Rev. E 92, 022701 (2015)
Classic experiments on the distribution of ducks around separated food sources found consistency with the `ideal free' distribution in which the local population is proportional to the local supply rate. Motivated by this experiment and others, we ex
Externí odkaz:
http://arxiv.org/abs/1507.04581