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Communication Dans Un Congrès Année : 2011

Effects of spatial structure and diffusion on the performances of the chemostat

Résumé

Given hydric capacity and nutrient flow of a chemostat-like system, we analyse the influence of a spatial structure on the output concentrations at steady-state. Three configurations are compared: perfectly-mixed, serial and parallel with diffusion rate. We show the existence of a threshold on the input concentration of nutrient for which the benefits of the serial and parallel configurations over the perfectly-mixed one are reversed. In addition, we show that the dependency of the output concentrations on the diffusion rate can be non-monotonic, and give precise conditions for the diffusion effect to be advantageous. The study encompasses dead-zone models.
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Dates et versions

hal-01001373 , version 1 (04-06-2014)

Identifiants

  • HAL Id : hal-01001373 , version 1
  • PRODINRA : 190820

Citer

Ihab I. Haidar, Alain Rapaport, Frederic F. Gerard. Effects of spatial structure and diffusion on the performances of the chemostat. STIC & Environnement 2011, Ecole Nationale Supérieure des Mines de Saint-Etienne (Mines de Saint-Etienne). FRA., May 2011, Saint-Etienne, France. pp.87-100. ⟨hal-01001373⟩
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