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Research Topics
The following is a list of research topics covered at the Caltech
ASC Center.
Topic |
Abstract |
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Compressible Turbulence |
An important component of the research carried out in the VTF facility
is the study of the interaction of strong shocks with material interfaces
in fluid phases. The modeling and simulation of the resulting inhomogeneous
anisotropic turbulence and mix has been a major thrust of the Center’s
research program. In the past five years the Center has made important
progress in this area via a unique structure-based multiscale approach
to turbulence modeling. (more) |
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Computational and Computer Science |
The mission of the Computational Science group is to conduct research
in both the algorithms and the computational infrastructure required
in order to achieve integrated simulation capabilities of the level of
sophistication and fidelity required by the multiscale research program
discussed below and to investigate the broader issues associated with
conducting high-fidelity credible scientific investigations using diverse,
distributed computing environments. (more) |
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Materials Properties |
A major goal of the center is to determine all input data to be used
in the VTF from first principles theory and computation. Thus the Materials
Properties (MP) team, led by William A. Goddard, III, will develop and
enhance methods for the accurate prediction of materials properties from
First Principles and will integrate both the methods and the results
into the VTF. (more) |
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Solid Dynamics |
The Solid Dynamics effort is structured in accordance to a multiscale
modeling paradigm, with activities ranging in scale from the quantum-mechanical
realm to full-scale engineering systems and components. The main target
areas of the effort are shock-induced dynamic fracture, spallation and
fragmentation in metals, including model systems such as Al and Li, and
other materials; and the dynamics of shocked BCC metals, with particular
focus on materials such as Fe exhibiting coupled martensitic transformations
and plasticity. (more) |
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Validation |
Validation plays a very integral role in the proposed scientific program.
We have designed as part of our ASC program a set of experiments in the
areas of compressible turbulence, detonation, and solid dynamics that
examine key phenomena of interest to the larger DP lab ASC program. In
addition, each of our end-to-end integrated simulations is tied to an
experiment aimed at validating the entire simulation. At the end of FY07
it is our plan to have a validated simulation capability for each of
the experiments described below. (more) |
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