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Why do you think your
paper is highly cited?
This paper covers two interrelated topics that have
attracted many researchers. Moving boundaries and interfaces
include fluid-structure interactions, which have been very
popular in recent years, and two-fluid flows, which have
been equally popular. Determination of the stabilization
parameters involved in the popular stabilized methods has
also been attracting much attention because of its
importance in the performance of the stabilized methods.
Does it describe a new discovery, methodology, or
synthesis of knowledge?
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“The numerical methods
described in the paper are some of the core technologies we are
using in computer modeling of the new parachutes to be used with
NASA’s Orion space vehicle..” |
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The paper describes a number of new methods for the
solution of flows with moving boundaries and interfaces, as
well as new and systematic ways of determining the
stabilization parameters.
Would you summarize the significance of your paper in
layman’s terms?
The paper describes a number of new methods and ideas to
make computer modeling of fluid mechanics and
fluid-structure interaction problems more effective.
How did you become involved in this research and were any
particular problems encountered along the way?
I have always been interested in the two topics covered
by the paper, and the work presented in the paper was my way
of pushing the front just a little bit more.
Where do you see your research leading in the future?
I look forward to increasing my research collaboration
with many talented researchers who are also working on these
two topics and increasing the scope and performance of the
computer modeling techniques for fluid mechanics and
fluid-structure interaction problems.
Are there any social or political implications for your
research?
The numerical methods described in the paper are some of
the core technologies we are using in computer modeling of
the new parachutes to be used with NASA’s Orion space
vehicle. These methods are also among the core technologies
we are using in patient-specific computer modeling of
arterial dynamics and blood flow, including the modeling of
cerebral aneurysms.
Tayfun E. Tezduyar, Ph.D.
James F. Barbour Professor in Mechanical Engineering
Mechanical Engineering and Materials Science
Rice University
Houston, TX, USA
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A Closer Look...
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Below
are images sent in by Tayfun E. Tezduyar
which were obtained from computer modeling with core
numerical technologies described in the cited paper. |
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Figure
1:
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Figure
1: Patient-specific computer modeling of the
arterial dynamics and blood flow for a middle
cerebral artery segment with aneurysm. The
arterial geometry is a close approximation to
the computer tomography model from a 57 year-old
male with cerebral aneurysm. The core numerical
technologies are coming from the cited paper.
For more information on this particular
simulation, see T.E. Tezduyar, S. Sathe, M.
Schwaab and B.S. Conklin, "Arterial Fluid
Mechanics Modeling with the Stabilized
Space-Time Fluid-Structure Interaction
Technique", International Journal for
Numerical Methods in Fluids, published
online, October 2007, DOI: 10.1002/fld.1633. |
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Figure 2:
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Figure
2: Patient-specific computer modeling of the
arterial dynamics and blood flow for a
bifurcating middle cerebral artery segment with
aneurysm. The arterial geometry is a close
approximation to the computer tomography model
from a 59 year-old female with cerebral
aneurysm. The core numerical technologies are
coming from the cited paper. For more
information on this particular simulation, see
T.E. Tezduyar, S. Sathe, T. Cragin, B. Nanna,
B.S. Conklin, J. Pausewang and M. Schwaab,
"Modeling of Fluid-Structure Interactions with
the Space-Time Finite Elements: Arterial Fluid
Mechanics", International Journal for
Numerical Methods in Fluids, 54 (2007)
901-922. |
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Figure
3:
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Figure
3: Computer modeling of a ringsail parachute
to be used with NASA Orion space vehicle. The
figures show the parachute shape and flow field
before and 6 seconds after the heat shield is
dropped to decrease the landing speed. The core
numerical technologies are coming from the cited
paper. For more information on this particular
simulation, see T.E. Tezduyar, S. Sathe, J.
Pausewang, M. Schwaab, J. Crabtree and J.
Christopher, "Air-Fabric Interaction Modeling
with the Stabilized Space-Time FSI Technique",
Proceedings of the Third Asian-Pacific
Congress on Computational Mechanics, Kyoto,
Japan, CD-ROM (2007). |
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Return to menu of Emerging Research Fronts
Tayfun E. Tezduyar
answers a
few questions about this
month's fast moving front in the
field of Engineering.
The
author has also
sent along images of their work.