IUTAM symposium on hydrodynamic diffusion of suspended particles

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Hydrodynamic diffusion refers to the fluctuating motion of nonBrownian particles (or droplets or bubbles) which occurs in a dispersion due to multiparticle interactions. For example, in a concentrated sheared suspension, particles do not move along streamlines but instead exhibit fluctuating motions as they tumble around each other. This leads to a net migration of particles down gradients in particle concentration and in shear rate, due to the higher frequency of encounters of a test particle with other particles on the side of the test particle which has higher concentration or shear rate. As another example, suspended particles subject to sedimentation, ... continued below

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135 p.

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Davis, R.H. December 31, 1995.

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Description

Hydrodynamic diffusion refers to the fluctuating motion of nonBrownian particles (or droplets or bubbles) which occurs in a dispersion due to multiparticle interactions. For example, in a concentrated sheared suspension, particles do not move along streamlines but instead exhibit fluctuating motions as they tumble around each other. This leads to a net migration of particles down gradients in particle concentration and in shear rate, due to the higher frequency of encounters of a test particle with other particles on the side of the test particle which has higher concentration or shear rate. As another example, suspended particles subject to sedimentation, centrifugation, or fluidization, do not generally move relative to the fluid with a constant velocity, but instead experience diffusion-like fluctuations in velocity due to interactions with neighboring particles and the resulting variation in the microstructure or configuration of the suspended particles. In flowing granular materials, the particles interact through direct collisions or contacts (rather than through the surrounding fluid); these collisions also cause the particles to undergo fluctuating motions characteristic of diffusion processes. Selected papers are indexed separately for inclusion in the Energy Science and Technology Database.

Physical Description

135 p.

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OSTI as DE97000046

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  • International Union of Theoretical and Applied Mechanics (IUTAM) symposium on hydrodynamic diffusion of suspended particles, Boulder, CO (United States), 23-25 Jul 1995

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  • Other: DE97000046
  • Report No.: CONF-950747--Absts.
  • Grant Number: FG03-95ER14527
  • Office of Scientific & Technical Information Report Number: 385565
  • Archival Resource Key: ark:/67531/metadc679997

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • December 31, 1995

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  • July 25, 2015, 2:20 a.m.

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  • Dec. 7, 2015, 5:58 p.m.

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Davis, R.H. IUTAM symposium on hydrodynamic diffusion of suspended particles, article, December 31, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc679997/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.