@inproceedings{PAR00007458,
  title = {{M}odeling and control of algae detachment in regulated canal networks},
  author = {{F}ovet, {O}. and {L}itrico, {X}. and {B}elaud, {G}illes},
  editor = {},
  language = {{ENG}},
  abstract = {{A}lgae development in open-channel networks induce major disturbances because of clogging issues on hydraulic devices (pipes, weirs, filters,...). {A}n original strategy to manage these algae developments consists in flushing the fixed algae. {T}he flush is carried out by increasing the hydraulic shear conditions using the hydraulic structures of the canal network. {I}n response to the shear stress increase, a part of the fixed algae is detached, then re-suspended into the water column, and finally transported into the canal network. {T}his leads to a peak of turbidity. {T}he present work aims at providing a design method for these flushes, based on a simplified detachment model. {T}he efficiency of a flush will depend on its amplitude and duration. {T}he design objective consists in maximizing the algae detachment using as little water as possible, and without overcoming a maximal turbidity level. {W}e have developed a physical model to assess the impact of a flush on fixed and drift algae dynamics. {W}e propose in this article a simplification of this model using linearization around a reference steady state regime. {T}he simplified linear model can be used for automatic control design. {T}he model parameters are identified on a real network: the branch of {M}arseilles {N}orth, part of the {C}anal de {P}rovence, located in {S}outhern {F}rance. {T}he calibration is based on continuous monitoring of a quality parameter: the water turbidity. {T}he calibrated model is then used to design the upstream discharge flush as an open-loop controller. {F}inally, flushes designed using the open-loop are tested on the simulation model, showing the interest of the method.},
  keywords = {{MODELE} {LINEAIRE} ; {CONTROLE} {AUTOMATIQUE} ; {CANAL} {D}'{IRRIGATION} ; {TURBIDITE}},
  numero = {},
  pages = {6  multigr.},
  booktitle = {},
  year = {2010},
  DOI = {10.1109/{CCA}.2010.5611235},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00007458},
}