| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
Granular materials are ubiquitous in nature and the rheology of granular materials has a great importance in industry. In this research, we investigate complex dynamics of granular materials by molecular dynamics (MD) simulations. Applying simple shear deformations to the system, we study collective motions and turbulent-like vortex structures of non-affine velocities of granular materials. The complex dynamics of non-affine velocities are directly related to strong spatial correlations. We find that the spatial correlations are significant if the density of granular materials is high and the system is yielding under simple shear deformations. We also reveal the strong connection between the complex dynamics of non-affine velocities and the rheology of dense granular maetrials.
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