Jeff Morris is the 2022 Weissenberg Awardee
Jeff Morris is Professor and Directorof at the Levich Institute of the City College of New York.
In addition to his scientific accomplishments, Morris has excelled in service to the
rheology community. For the Society of Rheology (US) he was an Annual Meeting Technical
Program Chair and he has chaired the Nominating and Bingham Medal Committees. He was
one of the organizers of an extended Kavli Institute Workshop on the Physics of Dense
Suspensions, and he co-edited a special issue of the Journal of Rheology on the subject, as well
as co-organizing a widely attended on-line symposium, with discussions published in JOR. He
has also been very active in Europe, with continuing CNRS appointments from 1999 through
2010, and more recently as head of a FERMAT Foundation research program in Toulouse from
2016 to 2020. In addition to many well-written and highly cited reviews, he is the co-author
with Élisabeth Guazzelli of A Physical Introduction to Suspension Dynamics, a text for those
new to an area that requires the integration of concepts from fluid mechanics and statistical
physics.
Jeffrey Morris’s comprehensive career-long research has laid the foundations for our
current understanding of suspension rheology, starting with his PhD research with John Brady
at Cal Tech and throughout his career at Georgia Tech, Halliburton, and the City College of
New York, as well ashis consulting on topics including oil and gas flow, consumer products,
and structural materials, where the control of suspension flow is critical. His research during the
past decade has been transformative in establishing the current paradigm for describing the
rheology of concentrated suspensions, work for which he has received the American Institute of
Chemical Engineers Shell Thomas Baron Award in Fluid-Particle Systems and twice received
the Journal of Rheology Publication Award. Morris’s goal has been to develop a comprehensive
fluid mechanics of suspensions, as outlined in his 2020 American Physical Society Stanley
Corrsin Award Lecture (Phys. Rev. Fluids, 2020), recognizing that the flow of suspensions is
central to vast numbers of natural and industrial situations and that the complex rheology of
suspensions can lead to secondary flows, to shear-induced migration, and to jamming.
Award Citation: For ground-breaking work onthe particle pressure and the underlying mechanism of suspension flow and discontinuous shear thickening, for novel work on the rheology of hydrate-forming emulsions, and for outstanding service to the rheology and fluid mechanics community.
