[BANANA] Masterworks Lecture Announcement - May 12, 2009

[Jan Winfield]

Masterworks Lecture Series 2009
Sponsored by the Institute for Scientific Computing Research (ISCR)

"Petascale Direct Numerical Simulation of
Turbulent Combustion"

Dr. Jacqueline H. Chen
Combustion Research Facility
Sandia National Laboratory

Tuesday, May 12, 2009
Building 543 Auditorium
2:00pm

  https://zebra.llnl.gov/seminar/view.php?id=359

ABSTRACT:
The rapid growth in computing power has presented both opportunities 
and challenges for high-fidelity simulations of turbulent reacting 
flows. The advent of petascale supercomputers has made it possible to 
glean fundamental physical insight into fine-grained 
'turbulence-chemistry' interactions in canonical laboratory-scale 
turbulent flames with direct numerical simulations (DNS). The unique 
benchmark DNS data are also used to develop and validate predictive 
models used to design future fuel-efficient combustors utilizing 
alternative fuels for transportation and power generation. Such 
simulations are costly, requiring several million cpu-hours on a 
petascale computer, over a billion grid points, and generating 100's 
of terabytes of data.  The turbulent combustion simulation enterprise 
involves collaborations with computer scientists in the performance 
monitoring and optimization of the software on petascale 
architectures, on automating workflow for providing runtime 
diagnostics, and on interactive data mining and visualization of 
time-varying multi-scale, multi-variate data.  Aspects of these 
collaborations will be described along with combustion examples that 
illustrate the science role of DNS.  Outstanding challenges with 
extracting salient information from terabytes of data, and strategies 
for mapping DNS solvers to multi-core petascale architectures will 
also be discussed.

ABOUT THE SPEAKER:
Jacqueline H. Chen received her Bachelor's degree from Ohio State 
University (1981), her Master's degree in Mechanical Engineering from 
University of California at Berkeley (1982), and her Ph.D. in 
Mechanical Engineering from Stanford University (1989).  She received 
the Sandia Employee Recognition Award for Technical Excellence in 
1998, is an adjunct professor of Chemical Engineering at the 
University of Utah, and is a Distinguished Member of Technical Staff 
at Sandia since 2002.  She is a Director of the Combustion Institute 
Board of Directors, a member of the Department of Energy's Office of 
Advanced Scientific Computing Research Advisory Committee, and serves 
on several editorial boards of scientific journals: Co-editor of 
Proceedings of the Combustion Institute, Volumes 29 and 30, Editorial 
Advisory Boards of Combustion and Flame, Progress in Energy and 
Combustion, Proceeding of the Combustion Institute, and Computational 
Science and Discovery.  She received the DOE INCITE Award in 2005, 
2007 and 2008, the DOE Office of Science Leadership Computing 
Facility Award in 2006, and Early User 250Tflop and 1 Pflop awards at 
ORNL in 2008 and 2009.  She has contributed to research in petascale 
simulations of turbulent combustion and topological methods for 
identification and tracking of scalar structure in turbulent reactive 
flow.

LLNL-PRES-412252


Technical Host: Bronis de Supinski (925) 422-1062
Administrative Contact: Jan Winfield (925) 422-9312
-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~
Jan Winfield, Administrator
Institute for Scientific Computing Research (ISCR)
Lawrence Livermore National Laboratory
7000 East Avenue
Livermore, CA  94550
L-365, T/3724
(925) 422-9312 Phone
(925) 422-7819 Fax

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