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Author: nicos martys

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71. Evaluation of the External Force Term in the Discrete Boltzmann Equation
Published: 11/1/1998
Authors: Nicos Martys, X Shan, H Chen
Abstract: A representation of the forcing term in the Boltzmann equation based on Hermite expansion of the Boltzmann distribution function in velocity phase space is derived. Based on this description of the forcing term, a systematic comparison of previous L ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860126

72. Application of Digital-Image-Based Models to Microstructure, Transport Properties, and Degradation of Cement-Based Materials.
Published: 1/1/1996
Authors: Dale P Bentz, Edward Joseph Garboczi, Nicos Martys
Abstract: As multi-phase composites, cement-based materials have physical properties that are strongly influenced by the volume fractions and topologies of the individual phases. Because of their inherent random nature, these materials often defy a simple geom ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916698

73. Simulation of Droplet Deformation at Supercritical Capillary Numbers Using a Lattice Boltzmann Method
Published: Date unknown
Authors: Frederick R Phelan Jr, Nicos Martys, Charles C. Dr. Han
Abstract: Lattice Boltzmann simulations have been carried out for two-phase systems in homogeneous shear flow at supercritical Capillary numbers and a viscosity ratio of unity. The simulations predict a three-stage mechanism for drop breakup. In the first stag ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852089

74. Spatial-Temporal Correlations at the Onset of Flow in Concentrated Suspensions
Published: Date unknown
Authors: Nicos Martys, Didier Lootens, William L George, Steven G Satterfield, Pascal Hebraud
Abstract: Spatial-temporal correlations in the startup-up flow of colloidal suspensions composed of attractive spherical particles under static and shear conditions are studied by computer simulation. The evolution of particle organization with time is followe ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861519

75. Stress chains formation under shear of concentrated suspension
Published: Date unknown
Authors: Didier Lootens, Nicos Martys, William L George, Steven G Satterfield, Pascal Hebraud
Abstract: Results comparing experiments on a model system of mono-disperse silica-particles with the numerical simulation of highly concentrated suspension of spherical particles subject to a constant rate of strain are presented. Giant fluctuations of the she ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861520



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