• 3373 Citations
1994 …2022
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Personal profile

Research Interests

Professor Umbanhowar's research in granular materials examines the interaction of legged devices and animals with unconsolidated substrates; the dependence of drag force and penetration resistance on granular material state and intruder geometry and kinematics; segregation, mixing, and flow in shaken, tumbled, fluidized, and stirred granular ensembles; and pattern formation and its connection to continuum theories of discrete particulate systems. Another related area of interest is motion control and self assembly/organization through vibrational manipulation of contact interactions mediated by friction and impact.

Education/Academic qualification

PhD, University of Texas at Austin

… → 1996

MS, Boston University

… → 1991

BA, Carleton College

… → 1987

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Grants 2000 2022

Research Output 1994 2019

6 Citations (Scopus)

Continuum modeling of granular segregation during hopper discharge

Xiao, H., Fan, Y., Jacob, K. V., Umbanhowar, P., Kodam, M., Koch, J. F. & Lueptow, R. M., Jan 16 2019, In : Chemical Engineering Science. 193, p. 188-204 17 p.

Research output: Contribution to journalArticle

Finite difference method
Granular materials
1 Citation (Scopus)

Cutting and shuffling a hemisphere: Nonorthogonal axes

Lynn, T. F., Smith, L. D., Ottino, J. M., Umbanhowar, P. B. & Lueptow, R. M., Mar 7 2019, In : Physical Review E. 99, 3, 032204.

Research output: Contribution to journalArticle

hemispherical shells
3 Citations (Scopus)

Diffusion, mixing, and segregation in confined granular flows

Fry, A. M., Umbanhowar, P., Ottino, J. M. & Lueptow, R. M., Mar 1 2019, In : AIChE Journal. 65, 3, p. 875-881 7 p.

Research output: Contribution to journalArticle

Shear flow
Finite difference method
1 Citation (Scopus)

Discrete element simulation of cylindrical particles using super-ellipsoids

Zhao, Y., Xu, L., Umbanhowar, P. B. & Lueptow, R. M., Oct 2019, In : Particuology. 46, p. 55-66 12 p.

Research output: Contribution to journalArticle

Wall flow
Aspect ratio

Granular segregation induced by a moving subsurface blade

Dwivedi, V., Ottino, J. M., Lueptow, R. M. & Umbanhowar, P. B., Nov 8 2019, In : Physical Review E. 100, 5, 052902.

Research output: Contribution to journalArticle

Characteristic numbers