title: Directional crack propagation of granular water systems.
abstract: Pattern dynamics of directional crack propagation phenomena observed in drying process of starch-water mixture is investigated. To visualize the three-dimensional structure of the drying-fracture process two kinds of experiments are performed, i.e., resin solidification planing method and real-time measurement of water content distribution with MR instruments. A cross section with polygonal structure is visualized in both experiments. The depth dependency of cell size is measured. The phenomenological model for water transportation is also discussed.
authors.affiliation: Department of Mathematical Sciences, Osaka Prefecture University, Sakai 599-8531, Japan. gutchi@ms.osakafu-u.ac.jp
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Mizuguchi
authors.forename: Akihiro
authors.initials: A
authors.lastname: Nishimoto
authors.forename: So
authors.initials: S
authors.lastname: Kitsunezaki
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Yamazaki
authors.forename: Ichio
authors.initials: I
authors.lastname: Aoki