News & EventsDepartment Events
Events
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Jun4
EVENT DETAILS
lessTitle: Thin-Shell Dynamics of Geophysical Subduction
Speaker: Neil Ribe, Université Paris-Saclay
Abstract: Subduction on Earth is the process whereby the planet’s stiff and dense outer shell (the lithosphere) sinks into the mantle below while deforming in complex ways over periods of millions of years. Because the typical Reynolds number of subduction-related flow is 10^(-20). understanding the process requires
the theory of low Reynolds number hydrodynamics. Using a variety of idealized models of subduction in both Cartesian and spherical geometries, we obtain numerical flow solutions using the boundary-element method and interpret
these using the theory of thin viscous shells. Aspects to be emphasized
in this talk include the key lengthscales and dimensionless numbers that
control subduction; the physical factors that determine which of several
modes or styles of subduction is selected under given conditions; the
complex state of stress in doubly-curved subducted shells; and the
potential role of buckling instabilities during subduction.Bio: Neil M. Ribe received his PhD in Geophysical Sciences from the University
of Chicago in 1981. After postdoctoral work at Columbia Unversity, he
joined the faculty of the Department of Geology and Geophysics at Yale
University. In 2000 he moved to France to take up a position with the
CNRS, first at the Paris Geophysical Institute (IPGP) and then (since 2009)
at the FAST laboratory in Orsay. He is a specialist in low Reynolds number
hydrodynamics, applied both to the dynamics of the Earth’s interior and
to a variety of problems in fundamental fluid mechanics and soft matter
physics.Zoom: https://northwestern.zoom.us/j/96111431914
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TIME Thursday, June 4, 2026 at 11:15 AM - 12:15 PM
LOCATION M416, Technological Institute map it
CONTACT Noor Kaur noor.kaur@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)
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Jun14
EVENT DETAILS
lessSpring 2026 Commencement
TIME Sunday, June 14, 2026
CONTACT Office of the Registrar nu-registrar@northwestern.edu EMAIL
CALENDAR University Academic Calendar
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Jun15
EVENT DETAILS
lessMcCormick School of Engineering PhD Hooding and Master's Degree Recognition Ceremony. The most up to date information can be found on our graduation webpage.
TIME Monday, June 15, 2026 at 9:00 AM - 11:00 AM
CONTACT Andi Joppie andi.joppie@northwestern.edu EMAIL
CALENDAR McCormick School of Engineering and Applied Science
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Jun15
EVENT DETAILS
lessMcCormick School of Engineering Undergraduate Convocation. The most up to date information can be found on our graduation webpage.
TIME Monday, June 15, 2026 at 2:00 PM - 4:00 PM
CONTACT Andi Joppie andi.joppie@northwestern.edu EMAIL
CALENDAR McCormick School of Engineering and Applied Science
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Jun19
EVENT DETAILS
lessJuneteenth - University Closed
TIME Friday, June 19, 2026
CONTACT Office of the Registrar nu-registrar@northwestern.edu EMAIL
CALENDAR University Academic Calendar
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Jul3
EVENT DETAILS
lessIndependence Day (observed) - University Closed
TIME Friday, July 3, 2026
CONTACT Office of the Registrar nu-registrar@northwestern.edu EMAIL
CALENDAR University Academic Calendar
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Sep23
EVENT DETAILS
lessFall 2026 Classes Begin
TIME Wednesday, September 23, 2026
CONTACT Office of the Registrar nu-registrar@northwestern.edu EMAIL
CALENDAR University Academic Calendar