Numerical Simulation of Colloidal Suspensions
نویسندگان
چکیده
منابع مشابه
Destabilization of Colloidal Suspensions 3.1 COLLOIDAL SUSPENSIONS
Many impurities in waters and wastewaters are present as colloidal dispersions, i.e. they occur in particulate form within the approximate size range 1 to 10 -3 μm (refer Fig 1.3). Examples of this type of suspension include clays, substances of biological origin such as natural colour, proteins, carbohydrates and their natural or industrial derivatives. Invariably suspensions of this type poss...
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We have established the solid–fluid coexistence region for a system of polydisperse hard spheres with near-Gaussian diameter distributions, as a function of polydispersity. Significantly, we observe a ‘terminal’ polydispersity above which there can be no fluid–solid coexistence. At the terminus the polydispersity is 5.7% for the solid and 11.8% for the fluid while the volume fractions are 0.588...
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Numerical Results for the Dielectric Dispersion Parameters of Colloidal Suspensions C. Grosse,∗,1 F. J. Arroyo,† V. N. Shilov,‡ and A. V. Delgado§ ∗Departamento de Fı́sica, Universidad Nacional de Tucumán, Av. Independencia 1800, (4000) San Miguel de Tucumán, Argentina; and Consejo Nacional de Investigaciones Cientı́ficas y Técnicas, Argentina; †Departamento de Fı́sica, Facultad de Ciencias Experi...
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When an alternating linear electric field is applied to an aqueous suspension of micron-size polystyrene particles, hydrodynamic instabilities are seen at a frequency range between 2 and 200 kHz. The formation of elongated bands of particles oriented at certain angles relative to the direction of the applied electric field and circulation of particles within the bands are observed. We examine t...
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A key step in the processing of ceramics is the consolidation of powders into engineered shapes. Colloidal processing uses solvents (usually water) and dispersants to break up powder agglomerates in suspension and thereby reduce the pore size in a consolidated compact. However, agglomeration and particle rearrangement leading to pore enlargement can still occur during drying. Therefore, it is b...
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ژورنال
عنوان ژورنال: Kobunshi
سال: 2004
ISSN: 0454-1138,2185-9825
DOI: 10.1295/kobunshi.53.271