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Dive into the research topics where Nasre-Dine Ahfir is active.

Publication


Featured researches published by Nasre-Dine Ahfir.


Transport in Porous Media | 2013

Suspended Particles Transport and Deposition in Saturated Granular Porous Medium: Particle Size Effects

Lyacine Bennacer; Nasre-Dine Ahfir; Abderrazak Bouanani; Abdellah Alem; Huaqing Wang

An experimental study on the transport and deposition of suspended particles (SP) in a saturated porous medium (calibrated sand) was undertaken. The influence of the size distribution of the SP under different flow rates is explored. To achieve this objective, three populations with different particles size distributions were selected. The median diameter


Transport in Porous Media | 2015

Hydraulic Operating Conditions and Particle Concentration Effects on Physical Clogging of a Porous Medium

Abdellah Alem; Nasre-Dine Ahfir; Abdulghadir Elkawafi; Huaqing Wang


Journal of Environmental Sciences-china | 2017

Porous media grain size distribution and hydrodynamic forces effects on transport and deposition of suspended particles

Nasre-Dine Ahfir; Ahmed Hammadi; Abdellah Alem; Huaqing Wang; Gilbert Le Bras; Tariq Ouahbi

d_{50}


Environmental Technology | 2017

Experimental investigation on removal of suspended particles from water using flax fibre geotextiles

Bouamama Abbar; Abdellah Alem; Anne Pantet; Stéphane Marcotte; Nasre-Dine Ahfir; Davy Duriatti


Science of The Total Environment | 2017

Modeling of retention and re-entrainment of mono- and poly-disperse particles: Effects of hydrodynamics, particle size and interplay of different-sized particles retention

Enze Ma; Tariq Ouahbi; Huaqing Wang; Nasre-Dine Ahfir; Abdellah Alem; Ahmed Hammadi

d50 of these populations was 3.5, 9.5, and


Environmental Pollution | 2017

Modeling of the transport and deposition of polydispersed particles: Effects of hydrodynamics and spatiotemporal evolution of the deposition rate

Enze Ma; Tariq Ouahbi; Huaqing Wang; Nasre-Dine Ahfir; Abdellah Alem; Ahmed Hammadi


Archive | 2011

Solid Particles Transport in Porous Media: Experimentation and Modelling

Huaqing Wang; Nasre-Dine Ahfir; Abdellah Alem; Anthony Beaudoin; Ahmed Benamar; Abdel Ghadir El Kawafi; Samira Oukfif; Samiara El Haddad; Hui Wang

18.3~\upmu \hbox {m}


Transport in Porous Media | 2009

Influence of Internal Structure and Medium Length on Transport and Deposition of Suspended Particles: A Laboratory Study

Nasre-Dine Ahfir; Ahmed Benamar; Abdellah Alem; Huaqing Wang


Hydrogeology Journal | 2007

Transport and deposition of suspended particles in saturated porous media: hydrodynamic effect

Nasre-Dine Ahfir; Hua Qing Wang; Ahmed Benamar; Adbellah Alem; Nicolas Massei; Jean-Paul Dupont

18.3μm. To study the effect of polydispersivity, a fourth population noted “Mixture” (


Hydrogeology Journal | 2013

Filtration of kaolinite particles in a saturated porous medium: hydrodynamic effects

Abdellah Alem; Abdulghadir Elkawafi; Nasre-Dine Ahfir; Huaqing Wang

Collaboration


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Abdellah Alem

Centre national de la recherche scientifique

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Ahmed Benamar

Centre national de la recherche scientifique

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Ahmed Hammadi

Centre national de la recherche scientifique

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Tariq Ouahbi

Centre national de la recherche scientifique

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Anne Pantet

Centre national de la recherche scientifique

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Bouamama Abbar

Centre national de la recherche scientifique

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Enze Ma

Centre national de la recherche scientifique

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