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Showing 1 to 11 of 11 for “"bidisperse"”.
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Large Scale Simulations of Bidisperse Emulsions and Foams
… flow of large-scale systems of monodisperse and bidisperse droplet suspensions. A comprehensive study has been performed to examine the effective viscosity of these systems as a function of the overall volume fraction, volume fraction of small droplets, Capillary number and droplet size ratio. …
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Shear Thickening In Dense Bidisperse Suspensions By Dynamic Simulation
… by performing a critical scaling analysis on the bidisperse suspensions while also comparing the results to those of nearly monodisperse suspensions. Specifically, we express the suspension rheological properties, such as the viscosity, the second normal stress difference, and the particle …
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Fluidized segregation of a bidisperse particulate mixture in a nonuniform annular geometry
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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EXPLORING THE INFLUENCE OF SIZE DISPERSITY ON MESOSCALE SELF-ASSEMBLY OF BIDISPERSE SYSTEM VIA MOLECULAR DYNAMICS
Mesoscale self-assembly is a central route to creating novel metamaterials for a wide variety of applications. However, the polydispersity of nanoparticles or colloidal building blocks often adds an additional layer of complexity to the assembly behavior of mesoscopic sys- tems. This complexity can …
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Stratification in Drying Particle Suspensions
… dynamics studies of drying suspensions of bidisperse nanoparticle mixtures. I first use an explicit solvent model to investigate how the structure of the dry film depends on the evaporation rate of the solvent and the initial volume fractions of the nanoparticles. My simulation results show …
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Granular Collapses
… results. We then extend the problem to the bidisperse case by using layers of two types of particles that differ only in their size. We find that, contrary to expectation, there is little segregation of the two species during the collapse. We then return to the monodisperse problem and …
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Sedimentation in a stratified ambient
… ambient. Using a box-model, we focus on bidisperse gravity currents and examine the resulting particle distribution and maximal deposit length. We then turn to suspensions where particles are initially present throughout the fluid. The simultaneous presence of particles and of a …
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Simulation methods for polydisperse, multiphase flows using moment methods
… theory, as well as experimental results in a bidisperse fluidised bed and a cyclic vertical riser. Finally, a solution method to the transport of the joint size-velocity NDF is presented using QBMM. The presented method makes no assumptions on the size or velocity distribution. Additionally, …
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Dynamics of Nanoparticles in Complex Media
… on dispersion of particles through mono and bidisperse porous media are studied. The long-time dispersion coefficients of nanoparticles in longitudinal and transverse direction scale linearly with Pe number across a range of solution flow rates and pore sizes, independent of the fluid …
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Diffusiophoresis and Auto Stratification in Rapidly Drying Colloidal Suspensions
… is found to also occur in 2D suspensions of bidisperse disks that are rapidly dried. This points to new features of colloidal diffusiophoresis in 2D suspensions. Finally, a facile strategy is proposed to use a binary mixture of solvents to induce and control the stratification of a binary …
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Intruder Dynamic Response in Particulate Media
… created mechanically stable granular packings of bidisperse discs, for several orders of magnitude of particle friction coefficient $\mu$, over a range in packing densities, or packing fractions $\phi$, in the vicinity of the critical packing fraction $\phi_c$, the density below which the packing …