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Jamming, Yielding, and Rheology during Submerged Granular Avalanche

Autor: Ge, Zhuan, Man, Teng, Hill, Kimberly M., Wang, Yujie, Galindo-Torres, Sergio Andres

Jamming transitions and the rheology of granular avalanches in fluids are investigated using experiments and numerical simulations. Simulations use the lattice-Boltzmann method coupled with the discrete element method, providing detailed stress and d

Externí odkaz: http://arxiv.org/abs/2408.13730

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Mean Stress Tensor of Discrete Particle Systems in Submerged Conditions

Autor: Ge, Zhuan, Man, Teng, Galindo-Torres, Sergio Andres

The mean stress tensor is essential to investigate the dynamics of granular material. In this paper, we use Hamilton's principle of least action to derive the averaged stress tensor of discrete granular assemblies subjected to hydraulic force fields,

Externí odkaz: http://arxiv.org/abs/2301.07567

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Unifying Lengthscale-Based Rheology of Dense Granular-Fluid Mixtures

Autor: Ge, Zhuan, Man, Teng, Huppert, Herbert E., Hill, Kimberly, Galindo-Torres, Sergio Andres

In this communication, we present a new lengthscale-based rheology for dense sheared particle suspensions as they transition from inertial- to viscous-dominated. We derive a lengthscale ratio using straightforward physics-based considerations for a p

Externí odkaz: http://arxiv.org/abs/2210.08746

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Friction-dependent rheology of dry granular systems

Autor: Man, Teng, Zhang, Pei, Ge, Zhuan, Galindo-Torres, Sergio A., Hill, Kimberly M.

Understanding the rheology of granular assemblies is important for natural and engineering systems, but the relationship between inter-particle friction (or microscopic friction) and macroscopic friction is still not well understood. In this study, u

Externí odkaz: http://arxiv.org/abs/2205.14898

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Transient Rheology of Immersed Granular Materials

Autor: Ge, Zhuan, Man, Teng, Huppert, Herbert E., Galindo-Torres, Sergio Anders

In this letter, we investigate the transient rheological behavior of immersed granular flows using both experiments of submerged granular column collapses and corresponding numerical simulations. The simulations are performed with the lattice-Boltzma

Externí odkaz: http://arxiv.org/abs/2205.15067

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