PhD, Chemical Engineering, University of Minnesota DiplChemEng, National University of La Plata (Argentina) see professional honors and awards below Mixing and segregation; fluids; powders; materials processing

Research Group Website

Resume (PDF)

Graduate Fellowships: NSF IGERT, Dynamics of Complex Systems

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?

Recent Publications

Books

R. Sturman, J.M. Ottino, and S. Wiggins, Mathematical Foundations of Mixing: The Linked Twist Map as a Paradigm in Applications – Micro to Macro, Fluids to Solids, Cambridge University Press, Cambridge, England, 2006.

*Selections for publications – 3/2/07

J.M. Ottino, Engineering Complex Systems, Nature, 427, 399 (2004).

L.A.N. Amaral and J.M. Ottino, Complex Networks: Completing the framework for the study of complex systems, European Physics Journal, 38, 47-162 (2004).

S.J. Fiedor and J.M. Ottino, Mixing and segregation of granular matter: multi-lobe formation in time-periodic flows , J. Fluid Mech., 533, 223-236, (2005). N.A. Pohlman, S.W Meier, R.M. Lueptow, and J.M. Ottino, Surface Velocity in Three-Dimensional Granular Tumblers, J. Fluid Mech. 560, 355 – 368, (2006).

N.A. Pohlman, J.M. Ottino and R.M. Lueptow, End-wall effects in granular tumblers: From quasi-two-dimensional flow to three-dimensional flow," Physical Review E (Vol. 74, No. 3): Phys. Rev. E 74, 031305 (2006) T. Arndt, A. Brucks, J.M. Ottino, and R.M Lueptow, Creeping granular motion under variable gravity levels, Phys, Rev, E.74(3), Art. No 031307, Part 1, Sept. 2006.

Perspectives and Essays

Read the Dean's Commentary: Fostering Creativity Key to Tech Leadership

J.M. Ottino, Engineering Complex Systems, Nature, 427, 399 (2004).

J.M. Ottino and S. Wiggins, Designing Optimal Micromixers, Science, 305, 485-486 (2004).

Professional Honors and Awards

• 2003 Member American Academy of Arts and Sciences
• 2003 Robb Distinguished Lecture in Chemical Engineering Science, Penn State University
• 2002 Ernest W. Thiele Award (AIChE, Chicago section)
• 2001 William H. Walker Award, American Institute of Chemical Engineers
• 2001 John S. Guggenheim Fellowship
• 2001 Paul J. Flory Lecturer, Stanford University
• 1999 Danckwerts Memorial Lecture, London, England
• 1997 Member, National Academy of Engineering
• 1996 Fellow, American Association for the Advancement of Science
• 1996 Sigma Xi Distinguished Lecturer (1997-1999)
• 1996 SON Lecture (Foundation for Chemical Research, The Netherlands)
• 1994 Alpha Chi Sigma Award, American Institute of Chemical Engineers
• 1994 William N. Lacey Lectureship in Chemical Engineering, California Institute of Technology
• 1994 College of Engineering Centennial Speaker, University of Maryland
• 1993 Fellow, American Physical Society, Division of Fluid Mechanics
• 1991 Fifth Stanley Corrsin Lectureship in Fluid Mechanics, The Johns Hopkins University
• 1989 Merck Sharp & Dohme Lecturer, University of Puerto Rico
• 1989 Finalist Scientific Prize, Art for Science, LV-MH, Paris, France
• 1988 University Fellow, University of Massachusetts
• 1987 Allan P. Colburn Memorial Lectureship, Department of Chemical Engineering, University of Delaware
• 1984 Presidential Young Investigator Award (NSF)
• 1982 Outstanding Junior Faculty Scholar Award (University of Massachusetts)

Prof. Julio M. Ottino
Department of Chemical and Biological Engineering
Northwestern University
2145 Sheridan Road
Evanston, IL 60208-3120

tel: 847/491-3558
fax: 847/491-3728
E-mail Professor Ottino