We study the shear-induced fluidization of amorphous solids subjected to external loading by investigating relaxation dynamics deformed states using computer simulation. A simple shear deformation is employed at constant rate thermal glassy materials. The localization and plastic heterogeneity with strain investigated in terms non-affine displacement field. mean square shows an enhanced mobilit...

Fluidization technology has found widespread applications for a variety of chemical and physical transformations since its introduction in the first half 1900s [...]

FLUENT and EDEM were applied to simulate liquid–solid coupling in a 3D homogenous fluidization. The dynamics of destabilization the granular material immersed by homogeneous fluidization observed. effect initial packing density stack rate on fluidization’s transient regime, configuration particles fluidized bed variation height analyzed discussed. According results, there was an original observ...

Acoustic Fluidization: I introduced the concept of acoustic fluidization in 1979 to explain the astonishingly low strength and viscosity exhibited by the collapse of impact craters and the formation of central peaks in lunar craters [1]. The name I gave to this process was not well chosen for the geologic community—“vibrational fluidization” might have been more apt--but that name was already i...

A Markovian Petri net is a stochastic discrete event system (DES) frequently used for analysis and performance evaluation purposes. In the past, the fluidification has been proposed in different DES’s as a relaxation technique for avoiding the ”state explosion problem”. Following the same approach, in this paper a hybrid Petri net model is defined as a partial relaxation of an original Markovia...

Kinetic theory based particle velocity measurements in a symmetric two-story riser show that in the core the flow is laminar and that the granular temperature is approximately given by the analogue of thermal temperature rise in Poiseuille flow. However, like in the turbulent flow in a pipe, the normal kinetic stresses are anisotropic. The shear and the normal stresses are an order of magnitude...

Muscle measurements of Ensis directus, the Atlantic razor clam, indicate that the organism only has sufficient strength to burrow a few centimeters into the soil, yet razor clams burrow to over 70 cm. In this paper, we show that the animal uses the motions of its valves to locally fluidize the surrounding soil and reduce burrowing drag. Substrate deformations were measured using particle image ...

Every adherent eukaryotic cell exerts appreciable traction forces upon its substrate. Moreover, every resident cell within the heart, great vessels, bladder, gut or lung routinely experiences large periodic stretches. As an acute response to such stretches the cytoskeleton can stiffen, increase traction forces and reinforce, as reported by some, or can soften and fluidize, as reported more rece...

Motivated by the direct numerical simulation of particulate flow (i.e., of the motion of fluid-particle mixtures) the authors of this paper, with the assistance of several collaborators, have introduced some years ago a computational methodology based on a fictitious domain formulation involving distributed Lagrange multipliers defined over the particles; this approach allows the flow computati...

Abstract The present study explores the relevance of physical properties biomass particles on determination minimum fluidization velocity ( U mf ) binary mixtures. Fluidization experiments were performed in a cold flow unit with diverse biomasses mixed sand different mass fractions. Gas and pressure drop across bed used to determine . Different correlations reported literature evaluated their a...