From shlizee at uw.edu Tue Jan 3 15:16:41 2012
From: shlizee at uw.edu (Eli Shlizerman)
Date: Tue Jun 12 13:43:54 2018
Subject: [Amath-seminars] Boeing Distinguished Lecture - Marsha Berger,
Thursday Jan 5
Message-ID:
Dear all,
This Thursday January 5th, Marsha Berger from the Courant Institute,
NYU will be the guest of the AMATH dept. and deliver the Boeing
Distinguished Colloquium.
Hope to see you all there!
-----------------------------------------------------------------------------------------------
Boeing Distinguished Lecture Series
Marsha Berger
Courant Institute, NYU
Title:
Cut-Cell Methods for Flows in Complicated Geometry
Thursday, January 5, 2011
220 Guggenheim, 4:00 pm
(Reception to follow on 4th floor of Guggenheim)
Abstract:
The Cartesian grid embedded boundary approach has attracted much
interest in the last decade due to the ease of grid generation for
complicated geometries. This approach uses rectangular Cartesian
meshes over most of the domain, with irregular, or cut cells at the
where the mesh intersects a solid body. It is in routine use in design
projects at NASA Ames to automate the solution of steady inviscid
compressible flow. Extending the method however to compute
time-dependent flow or viscous flow is much more complicated.
In this talk we first briefly describe our approach to embedded
boundary computations, and illustrate what distinguishes it from level
set or other immersed boundary approaches. We present examples showing
the current state for computing steady invsicid flow at NASA Ames. The
second half of the talk will concentrate on the algorithmic issues
that arise when trying to extend the method to compute time-dependent
and viscous flows. We present our preliminary work in two space
dimensions illustrating a simpli- fied but second-order accurate
approach to solving the so-called small-cell problem faced by explicit
difference schemes. We also show our recent work in computing high
Reynolds number flow without using the anisotropic re- finement which
is possible with a body-fitted grid.
--
Eli Shlizerman
Acting Assistant Professor
Department of Applied Mathematics,
University of Washington, Seattle
http://www.amath.washington.edu/~shlizee/
From shlizee at gmail.com Tue Jan 17 22:16:05 2012
From: shlizee at gmail.com (shlizee@gmail.com)
Date: Tue Jun 12 13:43:54 2018
Subject: [Amath-seminars] Boeing Distinguished Lecture - Walter Strauss,
January 19
Message-ID:
Dear all,
This Thursday January 19th, Walter Strauss from Brown will be the guest of
the AMATH dept. and will deliver the Boeing Distinguished Colloquium.
Hope to see you all there!
-----------------------------------------------------------------------------------------------
Boeing Distinguished Lecture Series
Walter Strauss
Brown University
Title:
Steady Rotational Water Waves
Thursday, January 19, 2012
220 Guggenheim, 4:00 pm
(Reception to follow on 4th floor of Guggenheim)
Abstract:
Precise study of water waves began with the derivation of the basic
mathematical equations of fluids by the great Euler in 1752. In the two
and a half centuries since then, the theory of fluids has played a central
role in the development of mathematics. Water waves are fluids with a free
surface. I will discuss periodic waves that travel at a constant speed.
Using local and global bifurcation theory, we now know how to prove that
there exist very many such waves. They may have either small or large
amplitudes. I will outline the existence proof, joint with Adrian
Constantin, and then exhibit some computations, joint with Joy Ko,
of the waves using numerical continuation. The computations
illustrate certain relationships between the amplitude, energy and mass
flux of the waves. If the vorticity is sufficiently large, the first
stagnation point of the wave occurs either at the crest, on the bed
directly below the crest, or in the interior of the fluid. The
vorticity also affects the pressure beneath the fluid and the behavior of
the fluid particles. This work is a perfect example of the synergy between
theory and computation.
--
Eli Shlizerman
Department of Applied Mathematics,
University of Washington, Seattle
http://www.amath.washington.edu/~shlizee/
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From kutz at uw.edu Thu Jan 19 09:05:57 2012
From: kutz at uw.edu (Nathan Kutz)
Date: Tue Jun 12 13:43:54 2018
Subject: [Amath-seminars] Boeing Distinguished Lecture - Walter Strauss,
January 19
Message-ID: <5AA76F0C-9FD3-4B0F-8A48-5097F254BCE7@uw.edu>
Hi All
Due to the classes being cancelled and the general shut down of the
University, we will reschedule Walter Strauss's
seminar for tomorrow afternoon (Friday) at 3:30pm in Gug 415L. I will
try to get a bigger room, but may not be able to in time.
See you tomorrow.
Nathan
------
Dear all,
This Thursday January 19th, Walter Strauss from Brown will be the
guest of the AMATH dept. and will deliver the Boeing Distinguished
Colloquium.
Hope to see you all there!
-----------------------------------------------------------------------------------------------
Boeing Distinguished Lecture Series
Walter Strauss
Brown University
Title:
Steady Rotational Water Waves
Thursday, January 19, 2012
220 Guggenheim, 4:00 pm
(Reception to follow on 4th floor of Guggenheim)
Abstract:
Precise study of water waves began with the derivation of the basic
mathematical equations of fluids by the great Euler in 1752. In the two
and a half centuries since then, the theory of fluids has played a
central
role in the development of mathematics. Water waves are fluids with a
free
surface. I will discuss periodic waves that travel at a constant speed.
Using local and global bifurcation theory, we now know how to prove that
there exist very many such waves. They may have either small or large
amplitudes. I will outline the existence proof, joint with Adrian
Constantin, and then exhibit some computations, joint with Joy Ko,
of the waves using numerical continuation. The computations
illustrate certain relationships between the amplitude, energy and mass
flux of the waves. If the vorticity is sufficiently large, the first
stagnation point of the wave occurs either at the crest, on the bed
directly below the crest, or in the interior of the fluid. The
vorticity also affects the pressure beneath the fluid and the behavior
of
the fluid particles. This work is a perfect example of the synergy
between
theory and computation.
--
Eli Shlizerman
Department of Applied Mathematics,
University of Washington, Seattle
http://www.amath.washington.edu/~shlizee/
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From kutz at uw.edu Fri Jan 20 12:03:25 2012
From: kutz at uw.edu (Nathan Kutz)
Date: Tue Jun 12 13:43:54 2018
Subject: [Amath-seminars] Boeing Lecture today at 3:30 in Gug 218
Message-ID: <116383DB-D344-4ACD-B30A-BCE60CFECC39@uw.edu>
Hi All
Yesterday's Boeing seminar will be held today at 3:30 in GUG 218 (NOT
220).
STUDENTS: For those around, there is a SIAM meeting with Walter at
2:30-3:15 in GUG 415L
Nathan
------
Dear all,
This Thursday January 19th, Walter Strauss from Brown will be the
guest of the AMATH dept. and will deliver the Boeing Distinguished
Colloquium.
Hope to see you all there!
-----------------------------------------------------------------------------------------------
Boeing Distinguished Lecture Series
Walter Strauss
Brown University
Title:
Steady Rotational Water Waves
Thursday, January 19, 2012
220 Guggenheim, 4:00 pm
(Reception to follow on 4th floor of Guggenheim)
Abstract:
Precise study of water waves began with the derivation of the basic
mathematical equations of fluids by the great Euler in 1752. In the two
and a half centuries since then, the theory of fluids has played a
central
role in the development of mathematics. Water waves are fluids with a
free
surface. I will discuss periodic waves that travel at a constant speed.
Using local and global bifurcation theory, we now know how to prove that
there exist very many such waves. They may have either small or large
amplitudes. I will outline the existence proof, joint with Adrian
Constantin, and then exhibit some computations, joint with Joy Ko,
of the waves using numerical continuation. The computations
illustrate certain relationships between the amplitude, energy and mass
flux of the waves. If the vorticity is sufficiently large, the first
stagnation point of the wave occurs either at the crest, on the bed
directly below the crest, or in the interior of the fluid. The
vorticity also affects the pressure beneath the fluid and the behavior
of
the fluid particles. This work is a perfect example of the synergy
between
theory and computation.
-------------- next part --------------
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URL:
From shlizee at uw.edu Tue Jan 24 11:32:02 2012
From: shlizee at uw.edu (Eli Shlizerman)
Date: Tue Jun 12 13:43:54 2018
Subject: [Amath-seminars]
Boeing Distinguished Lecture - Gigliola Staffilani, January 26
Message-ID:
Dear all,
This Thursday January 26th, Gigliola Staffilani from MIT will be the guest
of the AMATH dept. and will deliver the Boeing Distinguished Colloquium.
The title and the abstract of the talk are below.
Hope to see you all there!
Best regards,
Eli
--
Eli Shlizerman
Acting Assistant Professor
Department of Applied Mathematics,
University of Washington, Seattle
http://www.amath.washington.edu/~shlizee/
-----------------------------------------------------------------------------------------------
Boeing Distinguished Lecture Series
*Gigliola Staffilani*
MIT
*Title: *
Dispersive equations and their role beyond PDE
Thursday, January 26, 2012
220 Guggenheim, 4:00 pm
(Reception to follow on 4th floor of Guggenheim)
*Abstract:
*Arguably the star in the family of dispersive equations is the Schr
odinger equation. Among many mathematicians and
physicists it is regarded as fundamental, in particular to understand
complex phenomena in quantum mechanics.
But not many people may know that this equation, when defined in a periodic
setting for example, has a very reach and more
abstract structure that touches several fields of mathematics, among which
analytic number theory, symplectic geometry,
dynamical systems and probability.
In this talk I will illustrate in the simplest possible way how all these
different aspects of a unique equation have a
life of their own while interacting with each other to assemble a beautiful
and subtle picture.
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From hetmaniu at uw.edu Wed Feb 22 22:35:59 2012
From: hetmaniu at uw.edu (Ulrich L. Hetmaniuk)
Date: Tue Jun 12 13:43:54 2018
Subject: [Amath-seminars] Seminar from Prof. G. Karniadakis (March 1st -
9h00)
Message-ID:
Dear All,
On Thursday March 1st, Prof. George Karniadakis will visit UW.
Here is his seminar announcement.
======================
Speaker: George Em Karniadakis, Professor of Applied Mathematics,
Brown University
& Research Scientist of Mechanical Engineering, MIT
Time and Date: 9h00 - 10h00 on Thursday March 1st, 2012
Place: Guggenheim 415L
Title: Predictability and Uncertainty in Large-Scale Simulations
Abstract: Large-scale simulations have enabled predictive modeling of
complex multiscale physical and biomedical phenomena, e.g. turbulent flows
resolved at the Kolmogorov scale or brain aneurysms resolved at the
sub-cell level.
However, such simulation results are strongly dependent on the values
of material properties and boundary
conditions, which are often unknown or uncertain. In this talk, I will
review the state-of-the-art in the stochastic
modeling of physical and biological systems, paying particular
attention to high dimensionality
of such problems and proposing different new approaches to handling it
efficiently.
From hetmaniu at uw.edu Wed Feb 29 09:53:25 2012
From: hetmaniu at uw.edu (Ulrich L. Hetmaniuk)
Date: Tue Jun 12 13:43:54 2018
Subject: [Amath-seminars] NEW ROOM EEB 105 >> Seminar from Prof. G.
Karniadakis (March 1st - 9h00)
Message-ID:
Dear All,
On Thursday March 1st, Prof. George Karniadakis will visit UW
as UW-PNNL Distinguished Lecturer. Here is his seminar announcement.
======================
Speaker: George Em Karniadakis, Professor of Applied Mathematics,
Brown University
& Research Scientist of Mechanical Engineering, MIT
Time and Date: 9h00 - 10h00 on Thursday March 1st, 2012
Place: EEB 105 (NEW ROOM)
Title: Predictability and Uncertainty in Large-Scale Simulations
Abstract: Large-scale simulations have enabled predictive modeling of
complex multiscale physical and biomedical phenomena, e.g. turbulent flows
resolved at the Kolmogorov scale or brain aneurysms resolved at the
sub-cell level.
However, such simulation results are strongly dependent on the values
of material properties and boundary
conditions, which are often unknown or uncertain. In this talk, I will
review the state-of-the-art in the stochastic
modeling of physical and biological systems, paying particular
attention to high dimensionality
of such problems and proposing different new approaches to handling it
efficiently.