Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 805 for “"suspensions"”.
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Compliant Mechanism Suspensions
This thesis has explored the use of compliant mechanisms in vehicle suspension systems, specifically where a compliant mechanism acts as part of the wheel locating mechanism and as the energy storage element. A compliant mechanism has the potential of reducing part count, joints, and manufacturing …
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Thermophoresis in Colloidal Suspensions
This dissertation examines the motion of colloids in a temperature gradient, a non-equilibrium phenomenon also known as thermophoresis. Chapter 1 gives an introduction to the existing applications and basic concepts of thermophoresis and outlines some of the experimental and theoretical challenges …
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Mechanics of polydisperse suspensions
This work describes the results of numerical simulations for polydisperse sedimentation of equal sized spheres, e.g. particles of different density. Using the stokesian dynamics algorithm, mobility matrices are computed for random particle configurations and ensemble averages taken to calculate the …
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Complex flow of concentrated suspensions
… investigate the effects of flow on concentrated suspensions. The work is largely about the effects of flow on concentrated colloidal suspensions, however, a short section on the effects of flow on concentrated granular suspensions is also given. Concentrated suspensions show a variety of complex …
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The Stability of Multiphase Suspensions
When sufficient quantities of buoyant particles are mixed with a sedimenting suspension of heavy particles, the two types of solids undergo rapid lateral segregation from each other. Streams containing the less populous species form and flow through a concentrated continuum suspension of the more …
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Electrophoretic Behavior of Alumina Suspensions
Made available in DSpace on 2014-12-10T17:32:37Z (GMT). No. of bitstreams: 1 6812161.pdf: 2978909 bytes, checksum: 556cc0fe88c9bdb9abee03ce16270071 (MD5) Previous issue date: 1968
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Relaxation behavior of dense suspensions
Dense suspensions of solid particles in Newtonian fluids exhibit a variety of non-Newtonian behaviors depending on the shear stress applied to the suspension and the particle mass fraction ([mathematical symbol]m). Suspensions at sufficiently high fm shear-thicken dramatically and eventually shear …
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Electromagnetic suspensions for ground transportation.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1974
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Rheology of semiconcentrated fiber suspensions
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1987.
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Fracture Morphologies in Particulate Suspensions
… drying and discontinuously shearthickening suspensions shear-jam and fracture under applied stress. In both systems, the morphology and dynamics of fracture reveal the internal stresses in the material: craquelures in old paintings reveal details of the painting technique used; crack …
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Stratification in Drying Particle Suspensions
… is on molecular 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 …
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Caractéristiques rhéologiques des suspensions de tourbe
L'écoulement des suspensions de tourbe dans l'eau a été étudié, sur un domaine de .concentrations compris entre O.75 et 2.25% en poids sec. La granulométrie des. fibres était inférieure à 3 mesh. Les pertes de charge ont été mesurées, sur une plage étendue de débits, le nombre de Reynolds variant …
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Rheological Study of Concentrated Silica Suspensions
<p>Concentrated suspensions of silica in water were investigated using a rotational viscometer and a Zeta-Meter. The viscometric data was analyzed for shear dependence, solid concentration dependence and pH dependence. The data for electrophoretic mobility was analyzed for pH dependence.</p><p>The …
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Confined Flow of Attractive Colloidal Suspensions
… While the flow properties of hard-sphere suspensions in micro-scale geometries have been studied extensively, the effects of interparticle attractions and particle size dispersity on the confined flow properties of particulate suspensions are not well understood. We used confocal …
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Large Scale Simulations of Brownian Suspensions
Our algorithm follows a Stokesian dynamics formulation by evaluating many-body hydrodynamic interactions using a far-field multipole expansion combined with a near-field lubrication correction. The breakthrough O(N ln N) scaling is obtained by employing a Particle-Mesh-Ewald (PME) approach whereby …
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Continuous Thickening of Non-Ideal Suspensions
Made available in DSpace on 2015-05-12T22:37:14Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7212228.PDF: 9355192 bytes, checksum: e65939cdb7a24726e8a2127a5bc62e69 (MD5) Previous issue date: 1971
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Flow of Suspensions Under Field Forces
Made available in DSpace on 2014-12-10T22:48:14Z (GMT). No. of bitstreams: 1 7212417.pdf: 4619835 bytes, checksum: 53024123473849fbed86001640b0eee1 (MD5) Previous issue date: 1971
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Electrostatic Probes for Coal-Air Suspensions
Made available in DSpace on 2014-12-09T17:13:49Z (GMT). No. of bitstreams: 1 7013278.pdf: 2924023 bytes, checksum: aad64ac8ffecfa091c3690de86571a0c (MD5) Previous issue date: 1969
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