News & EventsDepartment Events
Events
-
Feb11
EVENT DETAILS
Title: Simulating Black Hole Feasts, Burps, and Fireworks
Speaker: Sasha Tchekhovskoy, Northwestern
Abstract: Based on latest state of the art general relativistic magnetohydrodynamic simulations, I will discuss how black holes feast on the surrounding gas, burp away their surroundings, and produce bright emission in a wide range of contexts, ranging from stellar-mass black holes in the context of binary mergers and collapsing massive stars to supermassive black holes at the centers of active galaxies.
Zoom: https://northwestern.zoom.us/j/95928482117
-----
To subscribe to the Applied Mathematics Colloquia List send a message to LISTSERV@LISTSERV.IT.NORTHWESTERN.EDU with the command:
add esam-seminar Youremail Firstname Lastname
TIME Tuesday, February 11, 2025 at 11:15 AM - 12:15 PM
LOCATION M416, Technological Institute map it
CONTACT Ted Shaeffer ted.shaeffer@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)
-
Feb25
EVENT DETAILS
Title: Astrophysical Fluid Dynamics at Exascale
Speaker: James Stone, Institute for Advanced Study
Abstract: Most of the visible matter in the Universe is a plasma -- that is
a dilute gas of electrons, ions, and neutral particles -- interacting
with both magnetic and radiation fields. Studying the structure
and dynamics of astrophysical systems, from stars and planets, to
galaxies and the large-scale structure of the Universe itself,
usually requires numerical methods to solve the coupled equations
of compressible radiation magnetohydrodynamics (MHD). Robust
numerical algorithms for modeling astrophysical fluids, including
new methods for calculating radiation transport in relativistic
flows, will be discussed. Efficient implementation of these methods
on modern high-performance computing systems is crucial, and an
approach based on the Kokkos programming model that enables performance
portability will be described. Performance on a variety of
architectures of a new adaptive mesh refinement (AMR) astrophysical
MHD code will be given, including scaling on up to 65536 GPUs on
the OLCF Frontier exascale computer. Finally, a case study will
be presented that demonstrates some of the many new insights that
have come from applying computational methods to one particular problem:
how plasma accretes onto the black holes in the centers of galaxies.Zoom: https://northwestern.zoom.us/j/95581369835
-----
To subscribe to the Applied Mathematics Colloquia List send a message to LISTSERV@LISTSERV.IT.NORTHWESTERN.EDU with the command:
add esam-seminar Youremail Firstname Lastname
TIME Tuesday, February 25, 2025 at 11:15 AM - 12:15 PM
LOCATION M416, Technological Institute map it
CONTACT Ted Shaeffer ted.shaeffer@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)
-
Mar11
EVENT DETAILS
Title: Active Particles in Inhomogeneous Environments
Speaker: Vaseem Shaik, Northwestern University
Abstract: Active particles are entities, either living (like microorganisms, birds, and humans) or non-living (like nanorobots), that convert stored energy into directed motion. A suspension of these particles is called active matter. They often navigate through inhomogeneous environments such as gradients in heat, light, nutrients, or fluid properties like viscosity and density, exhibiting directed motion known as taxis (e.g., chemotaxis, phototaxis, gravitaxis). This summary focuses on μm - mm-sized particles swimming in fluids with mechanical property gradients, like viscosity, elasticity, and density. It discusses phenomena like viscotaxis (response to viscosity gradients), behavior similar to light refraction in viscosity gradients (described by a Snell’s law), durotaxis (response to elasticity gradients), and densitaxis (response to density gradients), with implications for plankton migration. The study also covers particle-induced mixing and the influence of noise, exploring how these inhomogeneities can control active matter in confined environments.
Zoom: https://northwestern.zoom.us/j/96970714028
-----
To subscribe to the Applied Mathematics Colloquia List send a message to LISTSERV@LISTSERV.IT.NORTHWESTERN.EDU with the command:
add esam-seminar Youremail Firstname Lastname
TIME Tuesday, March 11, 2025 at 11:15 AM - 12:15 PM
LOCATION M416, Technological Institute map it
CONTACT Ted Shaeffer ted.shaeffer@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)
-
Mar15
EVENT DETAILS
Winter Classes End
TIME Saturday, March 15, 2025
CONTACT Office of the Registrar nu-registrar@northwestern.edu EMAIL
CALENDAR University Academic Calendar
-
Mar17
EVENT DETAILS
Winter exams begin
TIME Monday, March 17, 2025
CONTACT Office of the Registrar nu-registrar@northwestern.edu EMAIL
CALENDAR University Academic Calendar
-
Mar22
EVENT DETAILS
Spring Break Begins
TIME Saturday, March 22, 2025
CONTACT Office of the Registrar nu-registrar@northwestern.edu EMAIL
CALENDAR University Academic Calendar
-
Mar31
EVENT DETAILS
Spring Break Ends
TIME Monday, March 31, 2025
CONTACT Office of the Registrar nu-registrar@northwestern.edu EMAIL
CALENDAR University Academic Calendar
-
Apr1
EVENT DETAILS
Spring Classes Begin - Northwestern Monday: Classes scheduled to meet on Mondays meet on this day.
TIME Tuesday, April 1, 2025
CONTACT Office of the Registrar nu-registrar@northwestern.edu EMAIL
CALENDAR University Academic Calendar
-
Apr8
EVENT DETAILS
Title: TBA
Speaker: Brennan Sprinkle, Colorado School of Mines
Abstract: TBA
Zoom: TBA
-----
To subscribe to the Applied Mathematics Colloquia List send a message to LISTSERV@LISTSERV.IT.NORTHWESTERN.EDU with the command:
add esam-seminar Youremail Firstname Lastname
TIME Tuesday, April 8, 2025 at 11:15 AM - 12:15 PM
LOCATION M416, Technological Institute map it
CONTACT Ted Shaeffer ted.shaeffer@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)