PATTERN CHARACTERIZATION: A CASE STUDY IN OSMOSEDIMENTATION

C. Rodrigues Neto (), R. R. Rosa () and F. M. Ramos ()
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C. Rodrigues Neto: Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Strasse 38, 01187 Dresden, Germany
R. R. Rosa: NUSASC-LAC, Instituto Nacional de Pesquisas Espaciais, P. O. Box 515, São José dos Campos, SP, 12201-970, Brazil
F. M. Ramos: NUSASC-LAC, Instituto Nacional de Pesquisas Espaciais, P. O. Box 515, São José dos Campos, SP, 12201-970, Brazil

International Journal of Modern Physics C (IJMPC), 2001, vol. 12, issue 08, 1261-1269

Abstract: In the present work, we investigate the ability of recently proposed computational operators to characterize the problem of pattern formation by fluid flow and mass transport in a viscous binary fluid mixture under osmosedimentation. We perform a numerical investigation of these patterns using three computational operators(R2→ R), computed from the spatial mass distribution, the streamlines, and the velocity fields. Our main goal is to demonstrate the ability of these computational operators to distinguish different dynamical regimes in the complex patterns arising from the osmosedimentation process.

Keywords: Computational Techniques; Fluid Dynamics; Buoyancy-Driven Instability; Sedimentation; Pattern Formation; Gradient Pattern Analysis (search for similar items in EconPapers)
Date: 2001
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DOI: 10.1142/S0129183101002504

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