Faculty DirectoryJulio M. Ottino
Walter P. Murphy Professor of Chemical and Biological Engineering and (by courtesy) Mechanical Engineering
Professor of Management and Organizations (by courtesy)
Distinguished Robert R. McCormick Institute Professor
Contact
2145 Sheridan RoadTech L262
Evanston, IL 60208-3109
847-491-5220Email Julio Ottino
Website
Departments
Chemical and Biological Engineering
Affiliations
Research Interests
Complex systems, dynamics of granular matter, mixing and segregation
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?
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Significant Recognition
- Member, American Academy of Arts and Sciences, 2003
- Ernest W. Thiele Award (AIChE, Chicago section), 2002
- William H. Walker Award, American Institute of Chemical Engineers, 2001
- John S. Guggenheim Fellowship, 2001
- Paul J. Flory Lecturer, Stanford University, 2001
- Danckwerts Memorial Lecture, London, England, 1999
- Member, National Academy of Engineering, 1997
- Fellow, American Association for the Advancement of Science, 1996
- Sigma Xi Distinguished Lecturer, 1996-1999
- Alpha Chi Sigma Award, American Institute of Chemical Engineers, 1994
- Fellow, American Physical Society, Division of Fluid Dynamics, 1993
- Finalist Scientific Prize, Art for Science, LV-MH, Paris, France, 1989
- Presidential Young Investigator Award (NSF), 1984
Selected Publications
Yu, Mengqi; Ottino, Julio M.; Lueptow, Richard M.; Umbanhowar, Paul B., Segregation patterns in three-dimensional granular flows, Physical Review E (2022).
Duan, Yifei; Jing, Lu; Umbanhowar, Paul B.; Ottino, Julio M.; Lueptow, Richard M., Segregation forces in dense granular flows, Journal of fluid Mechanics (2022).
Duan, Yifei; Umbanhowar, Paul B.; Ottino, Julio M.; Lueptow, Richard M., Modelling segregation of bidisperse granular mixtures varying simultaneously in size and density for free surface flows, Journal of fluid Mechanics 918 (2021).
Wang, Mengying; Ottino, Julio M.; Lueptow, Richard M.; Umbanhowar, Paul B., Particle capture in a model chaotic flow, Physical Review E (2021).
Jones, Ryan P.; Ottino, Julio M.; Umbanhowar, Paul; Lueptow, Richard M., Predicting segregation of nonspherical particles, Physical Review Fluids 6(5) (2021).
Gao, Song; Ottino, Julio M.; Umbanhowar, Paul B.; Lueptow, Richard M., Modeling granular segregation for overlapping species distributions, Chemical Engineering Science 231 (2021).
Jones, Ryan P.; Ottino, Julio M.; Umbanhowar, Paul B.; Lueptow, Richard M., Remarkable simplicity in the prediction of nonspherical particle segregation, Physical Review Research 2(4) (2020).
Fry, Alexander M.; Vidyapati, Vidya; Hecht, John P.; Umbanhowar, Paul B.; Ottino, Julio M.; Lueptow, Richard M., Measuring segregation characteristics of industrially relevant granular mixtures, Powder Technology 368:190-201 (2020).