Module Sediment SEDI-MARS3D / MUSTANG

• before version V11.3, SEDIMENT module used is SEDI-MARS3D

  • This module is activated with the key : key_sedim and key_sedim_mixsed associated with key_substance (Module Substance)
  • It takes into account a sedimentary compartment with the laws of sediment behavior and the water column with the transport of particulate subtances
  • This module has been developped by Le Hir et al, coupled with the hydrodynamic model SiAM. Then, it has continued to evolve, coupled with the parallelized hydrodynamic model MARS.

• from version V11.3, SEDI-MARS3D is renamed MUSTANG (*MUd and Sand TranSport modelliNG*)

  • MUSTANG can be coupled with other hydrodynamic codes.
  • This module is activated with the key : key_sedim_MUSTANG associated with key_substance (Module Substance)
  • The new documentation for MUSTANG is being written (see (Module Sediment MUSTANG)

• General presentation of sediment module SEDI_MARS3D
• Formulations of sediment module SEDI_MARS3D
  • Erosion Process
  • Deposit Process
  • Setlling Process
  • Extrapolation of sand variable near bottom (Rouse profile)
  • Treatment of sand as 2D variable in water column (key_sandbottomcell)
  • Diffusion within sediment and at interface
  • Bioturbation within sediment
  • Consolidation of sediment
  • Morphodynamic coupling
  • Floculation
• Settling velocities : Modelling strategy
  • Free settling velocity
  • Hindered settling velocity
  • Exemples of evolution of settling velocity according to different options
• Implementation of sediment module SEDI_MARS3D
  • CPP keys for module SEDI-MARS
  • Initialization of sediment
• namelist for sediment : parasedim.txt
  • Namelist sedoutput :
  • Namelist namsedim : parameters for CPP key_sedim_mixsed only
• Definition of parameters for particulate-sediment substances in variable.dat
• Special writing of sand in water column and of all variables in sediment (with key_sedim)
  • Output sand variables in water column (if key_sandbottomcell & key_sedim_mixsed)
  • Output variables in sediment
• Organization of sediment module SEDI_MARS3D
• References - (module SEDI_MARS3D/MUSTANG)