• 3059 Citations
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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 2019

Research Output 1994 2019

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
2 Citations

Asymmetric concentration dependence of segregation fluxes in granular flows

Jones, R. P., Isner, A. B., Xiao, H., Ottino, J. M., Umbanhowar, P. & Lueptow, R. M., Sep 1 2018, In : Physical Review Fluids. 3, 9, 094304.

Research output: Contribution to journalArticle

Granular Flow
Particle size
Particle Size
3 Citations
continuum modeling

Diffusion, mixing, and segregation in confined granular flows

Fry, A. M., Umbanhowar, P., Ottino, J. M. & Lueptow, R. M., Jan 1 2018, (Accepted/In press) In : AIChE Journal.

Research output: Contribution to journalArticle

Shear flow
Finite difference method
3 Citations

Effect of pressure on segregation in granular shear flows

Fry, A. M., Umbanhowar, P., Ottino, J. M. & Lueptow, R. M., Jun 27 2018, In : Physical Review E. 97, 6, 062906.

Research output: Contribution to journalArticle

Granular Flow
Shear Flow
shear flow