@inproceedings{fdi:41305,
  title = {{A}n "oriented-object" computer construction of deforming fractal soil structures : determination of their water properties},
  author = {{P}errier, {E}dith and {M}ullon, {C}hristian and {R}ieu, {M}ichel and {M}arsily, {G}. de},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n order to study relationships between soil water properties and soil structural properties, a computer micro-model of soil is constructed. {I}n this paper, we present first a general building method of a porous structure, including both pores and grains, with different levels of aggregation resulting from a fragmentation process. {A} fractal structure is obtained when self-similarity is imposed over the successive scales of fragmentation. {E}mphasis is put upon the modeling of the retention curve. {A} classical capillary model and methods coming from the percolation theory enable us to simulate qualitatively the primary and secondary loops of the well-known hysteresis of this curve. {I}n the fractal case, theoretical analytical expressions proposed for adjusting retention data are tested. {T}he unsaturated hydraulic conductivity is also calculated on the same simulated soil, by analogy with an electrical network. {O}n the other hand, our structures are deformable and simulation proves to be a useful tool to investigate the behavior of swelling soils. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{STRUCTURE} {DU} {SOL} ; {EAU} {DU} {SOL} ; {PROPRIETE} {HYDRIQUE} ; {MODELISATION} ; {SIMULATION} ; {POROSITE} ; {HYDRODYNAMIQUE} ; {MICROORDINATEUR} ; {FRACTAL} ; {LANGAGE} {ORIENTE} {OBJET}},
  numero = {},
  pages = {19},
  booktitle = {{P}orous or fractured unsaturated media : transports and behaviour},
  year = {1992},
  URL = {https://www.documentation.ird.fr/hor/fdi:41305},
}