COLLOQUIUM 588
Coupling Mechanisms and Multi-Scaling in Granular-Fluid Flows

2 October — 5 October 2017, Toulouse, France

Scientific program

download book of abstracts

Monday

8h30-9h30: Registration

9h30-10h30: Fluid-particle interaction and rheology / Keynote /

  • Complex suspensions – O. Pouliquen

10h30-11h00: Coffee break

11h00-12h30: Fluid-particle interaction and rheology / Single grain dynamics

  • 11h00 - Modelling and Numerical Simulations of Contacts in Particle-Laden Flow – Lambert et al.
  • 11h30 - Bouncing dynamics of a sphere on a textured wall in a viscous fluid – Chastel et al.
  • 12h00 - Incipient motion of a single sphere on regular substrates at low particle Reynolds numbers – Wierschem et al.

12h30-14h00: Lunch

14h00-16h00: Fluid-particle interaction and rheology / Complex shape and interaction force

  • 14h00 - Collision model for ellipsoidal particles with application to sediment transport – Jain et al.
  • 14h30 - Grain-Resolved Simulations of Cohesive Sediment – Vowinckel et al.
  • 15h00 - Fluid flow erosion of cemented granular media – Philippe et al.
  • 15h30 - Accretion Dynamics on Wet Granular Materials – Saingier et al .

16h00-16h30: Coffee break

16h30-18h30: Fluid-particle interaction and rheology / Rheology and Continuous modelling

  • 16h30 - Gradient regularization of the mu(I) model of dense granular flow – Goddard et al.
  • 17h00 - Hysteresis and non-Newtonian rheology of a sheared gas-solid suspension – Alam et al.
  • 17h30 - Turbulence locality and granularlike fluid viscosity in collisional suspensions – Berzi et al.
  • 18h00 - Particle resolved simulation of a 3D periodic Couette dense bidispersed fluid-particle flow – Scorsim et al.

Tuesday

9h30-10h30: Granular avalanches / Keynote /

  • Particle-Fluid Flows on Earth and Mars – J. McElwaine

10h30-11h00: Coffee break

11h00-12h30: Granular avalanches / Dry and immersed granular flows

  • 11h00 - A laboratory-numerical approach for quantifying scale effects in dry granular slides – Kesseler et al.
  • 11h30 - Immersed granular collapse : numerical modelling – Lacaze et al.
  • 12h00 - A two-phase solid-fluid model for dense granular flows including dilatancy effects: comparison with submarine granular collapse experiments – Bouchut et al .

12h30-14h00: Lunch

14h00-15h30 : Granular avalanches / Three-phase flows

  • 14h00 - Wet granular collapse on a horizontal plane : from immersed to fluid-satured granular columns – Bougouin et al.
  • 14h30 - Just-saturated column collapse – Turnbull et al.
  • 15h00 - Collapse of a water-saturated granular column in air – Aussillous et al.

15h30-16h00: Coffee break

16h00-17h30: Granular avalanches / Wave generation

  • 16h00 - Tsunami wave generation by a granular collapse – Robbe-Saule et al.
  • 16h30 - A granular model for snow avalanches entering water basins – Zitti et al.

17h00-……...: visit IMFT labs


Wednesday

9h00-10h00: Sediment transport / Keynote

  • Fluid-Particle Flow at and near a Particle Bed – J. Jenkins

10h00-10h30: Coffee break

10h30-11h30: Sediment transport / Hydrodynamics modelling

  • 10h30 - Mixing length and friction factors in the transitional regime – Colombini et al.
  • 11h00 - Fluid flow over ripples and dunes – Charru et al.

11h30-12h30: Sediment transport / Weak and intense sediment transport

  • 11h30 - Inhomogeneous aeolian sand transport – Selmani et al.
  • 12h00 - sedFoam: an open-source multi-dimensional two-phase flow model for sediment transport applications – Chauchat et al.

12h30-14h00: Lunch

14h00-16h00: Sediment transport / Focus on bedload

  • 14h00 - Sediment transport in laminar channel flow: On the rheology of the mobile sediment layer – Kidanemariam et al.
  • 14h30 - Unified Theory of Sediment Transport Cessation – Pähtz et al.
  • 15h00 - Wandering grains: entrainment and movement of sediments along a streambed – Fraccarollo et al.
  • 15h30 - On length and duration of bed-load particle hops: can we obtain unbiased mean values from biased samples? – Ballio et al .

16h00-16h30: Coffee break

16h30-18h00: Sediment transport / Focus on bedload

  • 16h30 - Revisiting slope inuence in turbulent bedload transport: consequences for vertical flow structure and transport rate scaling – Maurin et al.
  • 17h00 - Comparison of theory, simulations, and experiments for turbulent bed-load profiles – Ni et al.
  • 17h30 - Derivation of a bedload transport model with viscous effects – Audusse et al.

19h30-……...: social event : dinner


Thursday

9h30-10h30: Morphodynamics – Bed stability / Keynote /

  • Shape, size and stability of alluvial rivers – E. Lajeunesse

10h30-11h00: Coffee break

11h00-12h30: Morphodynamics – Bed stability / Morphodynamics and dunes

  • 11h00 - Oscillating Sand Ripples in the Laboratory – Rousseaux
  • 11h30 - Subaqueous ripples and dunes: Formation and evolution in the lab – Jarvis et al.
  • 12h00 - Direct numerical simulation of the formation of rolling-grain ripples in an oscillatory boundary layer – Mazzuoli et al.

12h30-14h00: Lunch

14h00-16h00: Morphodynamics – Bed stability / Ripples

  • 14h00 - Growth of dunes under a multidirectional flow regime – Gadal et al.
  • 14h30 - Dune steady state shape under turbulent unidirectional flow – Kiki et al.
  • 15h00 - Morphogenesis of laboratory rivers – Abramian et al.
  • 15h30 - Erosion in the vicinity of a vertical cylinder – Lachaussée et al.