非ニュートン流体特性を有する高濃度土砂流の抵抗特性
Resistance characteristic of hyperconcentrated-flow that has non-Newtonian properties

Zhiying Cui, Terunori Ohmoto, Satoru Koga
2006 Journal of Applied Mechanics  
Resistance characteristic of hyperconcentrated-flow that has non-Newtonian properties Zhiying Cui, Terunori Ohmoto and Satoru koga The need to understand and predict flows that carry large suspended sediment loads has become acute in the Yellow River basin where significant erosion and siltation associated with hyperconcetrated flood give rise to many river problem. Mud flows, debris flows or slurries, made up of a large amount of clay and/or silt particles suspended in water, often show
more » ... , often show non-Newtonian properties but remain poorly understood concerning their rheological properties. This paper concerns an experimental study of the rheological properties of mudflows that were investigated by using coaxial cylinder. Shear stress and viscocity of the experimental results have relation with shear rate, sediment concentration, temperature and particle size distribution. In addition the relation between shear stress and shear rate is described by Power law model at low shear rate that shear rate did not fit to Bingham model. It was clarified that the rheological properties of Poly sodium acrylic (PSA) solution was similar to mud flows.
doi:10.2208/journalam.9.883 fatcat:ycusdyou4fhkpl7czh6bgmtfpu