Grants per year
Personal profile
Research Interests
Current topics of interest include investigations of a broad class of problems where there is a competition between order and disorder, such as in mixing and segregation of granular matter or fluid mixing and, more generally, problems in the realm of complex systems involving tools such as agent-based models and network theory.
The interest in basic understanding of mixing lies in the ubiquity of mixing processes in technology and nature; examples are found in chemical, mechanical, and aeronautical engineering, but also in geophysics, physiology, oceanography, polymer engineering, and environmental sciences.
The work in granular dynamics involves a blend of theory, computations, and experimental work that reaches into applications. While important to a wide range of industries, our understanding of solid mixing and segregation is primitive. Some key questions we are currently addressing are: What features of mixing can be predicted computationally? What causes demixing and how it interplays with mixing? How can mixing be optimized?
Education/Academic qualification
Chemical Engineering, PhD, University of Minnesota
… → 1979
Chemical Engineering, Diploma, National University of La Plata, Argentina
… → 1974
Research interests
- Complex systems
- dynamics of granular matter
- mixing and segregation processes
Fingerprint Dive into the research topics where Julio M Ottino is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
- 2 Similar Profiles
Segregation
Mathematics
granular materials
Physics & Astronomy
Granular materials
Engineering & Materials Science
Granular Flow
Mathematics
Fluids
Engineering & Materials Science
Advection
Engineering & Materials Science
Stretching
Engineering & Materials Science
Granular Materials
Mathematics
Network
Recent external collaboration on country level. Dive into details by clicking on the dots.
Grants 1995 2022
GOALI: Flow driven segregation at the particle level
Lueptow, R. M., Ottino, J. M. & Umbanhowar, P.
10/1/19 → 9/30/22
Project: Research project
physical property
particle
UNS: Controlling mixing and segregation of granular media using unsteady flows
Lueptow, R. M., Ottino, J. M. & Umbanhowar, P.
7/1/15 → 6/30/20
Project: Research project
granular medium
unsteady flow
kinematics
Cutting and Shuffling: A New Dynamical Systems Paradigm for Mixing
Lueptow, R. M., Ottino, J. M. & Umbanhowar, P.
9/1/14 → 8/31/18
Project: Research project
Dynamical systems
Granular materials
Geophysics
Merging
Drug products
REU Supplement for DynSyst_Special_Topics: A Dynamical Systems Approach to Mixing and Segregation of Granular Matter
Lueptow, R. M. & Ottino, J. M.
5/21/13 → 7/31/14
Project: Research project
DynSyst_Special_Topics: A Dynamical Systems Approach to Mixing and Segregation of Granular Matter
Lueptow, R. M. & Ottino, J. M.
8/15/10 → 7/31/14
Project: Research project
Research Output 1979 2019
2
Citations
(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 journal › Article
Hemisphere
hemispheres
hemispherical shells
tongue
Isometry
3
Citations
(Scopus)
Diffusion, mixing, and segregation in confined granular flows
Fry, A. M., Umbanhowar, P. B., Ottino, J. M. & Lueptow, R. M., Mar 2019, In : AIChE Journal. 65, 3, p. 875-881 7 p.Research output: Contribution to journal › Article
Pressure
Shear flow
Finite difference method
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 journal › Article
Segregation
blades
Blade
beds
Characteristic numbers
4
Citations
(Scopus)
Modeling segregation in granular flows
Umbanhowar, P. B., Lueptow, R. M. & Ottino, J. M., Jun 7 2019, In : Annual Review of Chemical and Biomolecular Engineering. 10, p. 129-153 25 p.Research output: Contribution to journal › Review article
Open Access
Finite difference method
Computer simulation
Advection
Constitutive equations
Experiments
1
Citation
(Scopus)
Modeling segregation of polydisperse granular materials in developing and transient free-surface flows
Deng, Z., Umbanhowar, P. B., Ottino, J. M. & Lueptow, R. M., Mar 2019, In : AIChE Journal. 65, 3, p. 882-893 12 p.Research output: Contribution to journal › Article
Granular materials
Normal Distribution
Particle Size
Advection
Normal distribution