Harry L. Goldsmith, Ph.d.

University of Pennsylvania, Philadelphia, PA, USA, .
Annals of Biomedical Engineering (Impact Factor: 3.23). 05/2008; 36(4):523-6. DOI: 10.1007/s10439-008-9479-y
Source: PubMed

ABSTRACT In honor of Dr. Harry L. Goldsmith's 75th birthday, we present a collection of articles from his collaborators and colleagues to commemorate Harry's outstanding contributions to the field of Biorheology. On any particular day, bioengineers around the world may find themselves fortunate enough to peer through a microscope to observe molecular or cellular level phenomena manifested before their eyes. Such observations of single molecule mechanics or blood flows or cellular deformation remind us of the power of clever experimental design and rigorous theoretical constructs as well as the complex beauty of dynamical systems in nature. In this spirit, the investigations reported in this issue of the Annals entitled Cellular Biorheology and Biomechanics have followed down many of the research paths pioneered by Dr. Harry Goldsmith.

  • Biorheology 02/1979; 16(3):231-48. · 1.59 Impact Factor
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    ABSTRACT: WE have extended recent observations of the radial movements of single rigid1,2 and deformable3 spheres suspended in Newtonian liquids flowing through straight circular tubes to include other particle shapes and visco-elastic fluids.
    Nature 09/1963; 200:159-160. DOI:10.1038/200159a0 · 42.35 Impact Factor
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    ABSTRACT: A general method of calculating forces, torques, and translational and rotational velocities of rigid, neutral, equal-sized spheres in a viscous fluid undergoing uniform shear flows is presented. The method is based on the matrix formulation of the hydrodynamic resistances by Brenner and O'Neill, and it is illustrated for simple shear and planar and axisymmetric extensional flows, for which the trajectories of pairs of sphere centers are calculated. It is shown that, in simple shear, trajectories are either open or closed; in extensional flows, all trajectories must be open. This has interesting implications in the dispersion of aggregates by shear. Although the translational and rotational behavior of interacting spheres is characterized by the type of flow, the behavior of the spheres in each flow is calculable from flow-independent quantities. Special emphasis is placed on the collision behavior of doublets. Initially separate spheres can never touch, but they can come into very close proximity, especially during equatorial encounters. In simple shear, translating spheres rotate about their own axes, which, in a doublet, causes one sphere to roll relative to the other except when they touch or are rigidly connected. The rotations of free and connected doublets and dumbbells are related to those of prolate spheroids.
    Journal of Colloid and Interface Science 01/1977; 61(1):21-43. DOI:10.1016/0021-9797(77)90413-1 · 3.55 Impact Factor

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