@inproceedings{fdi:010085789,
  title = {{F}luidisation by pore pressure of dense granular flows : numerical simulations versus experiments},
  author = {{A}ravena, {A}. and {C}hupin, {L}. and {D}ubois, {T}. and {R}oche, {O}livier},
  editor = {},
  language = {{ENG}},
  abstract = {{A} model accounting for fluidisation by pore gas pressure in dense granular flows is presented. {A} viscoplastic rheology, based on the {D}rucker-{P}rager criterium, is used to describe the granular medium which is a mixture of air and glass beads. {T}he pore gas pressure, which satisfies an advection-diffusion equation, reduces the friction between the particles and thus the value of the apparent viscosity. {A}s a consequence, dense fluidised granular flows can travel longer distances. {I}n laboratory experiments, the run-out distance reached by dense granular columns when collapsing is almost doubled when fluidisation is applied. {T}his fundamental result, in the context of pyroclastic density currents, is reproduced by numerical simulations performed with the fluidised model.},
  keywords = {},
  numero = {},
  pages = {12  multigr.},
  booktitle = {},
  year = {2022},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085789},
}