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Gao C, Kulkarni SD, Morris JF, et al. Direct investigation of anisotropic suspension structure in pressure-driven flow. Phys Rev E Stat Nonlin Soft Matter Phys. 2010;81(4):041403doi: 10.1103/PhysRevE.81.041403.
Gao, C., Kulkarni, S. D., Morris, J. F., & Gilchrist, J. F. (2010). Direct investigation of anisotropic suspension structure in pressure-driven flow. Physical review. E, Statistical, nonlinear, and soft matter physics, 81(4), 041403. https://doi.org/10.1103/PhysRevE.81.041403
Gao, C, et al. "Direct investigation of anisotropic suspension structure in pressure-driven flow." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 81,4 (2010): 041403. doi: https://doi.org/10.1103/PhysRevE.81.041403
Gao C, Kulkarni SD, Morris JF, Gilchrist JF. Direct investigation of anisotropic suspension structure in pressure-driven flow. Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Apr;81(4):041403. doi: 10.1103/PhysRevE.81.041403. Epub 2010 Apr 15. PMID: 20481723.
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Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Apr;81(4):041403. doi: 10.1103/PhysRevE.81.041403. Epub 2010 Apr 15.

Direct investigation of anisotropic suspension structure in pressure-driven flow.

Physical review. E, Statistical, nonlinear, and soft matter physics

C Gao, S D Kulkarni, J F Morris, J F Gilchrist

Affiliations

  1. Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, USA.

PMID: 20481723 DOI: 10.1103/PhysRevE.81.041403

Abstract

Evidence is presented to show the microstructural anisotropy responsible for normal stress in sheared suspensions. Particle velocimetry is combined with three-dimensional particle locations obtained via confocal microscopy at rest. A range of volume fractions phi and local shear rates gamma are investigated in a weakly Brownian pressure-driven suspension. At high gamma, the pairwise distribution shows a strong probability along the axis of compression similar to observations from Stokesian dynamics simulation at phi=0.32. At the channel center where gamma-->0, the concentrated suspension at phi=0.56 behaves as a confined isotropic fluid.

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