CSAR Seminar
SPEAKER: Kozo Fujii,
Institute of Space and Astronautical Science,
Japan Aerospace Exploration Agency
TITLE:
Computational Effort Toward Quantitative Estimation of Rocket Plume Acoustics
— Advanced CFD as a Key Technology in Space Development
DATE: Friday, April 25, 2008
TIME: 2:00 P.M.
PLACE: 2240 DCL
1304 W. Springfield Ave., Urbana, IL
ABSTRACT
Computational Fluid Dynamics (CFD) in aerospace has a history of 40
years and made remarkable contributions. Compared to CFD contributions
in aeronautics, where CFD works as an inevitable element of aircraft
design and development process, CFD in space development is still in
the early stage. CFD is used just as a subsidiary tool for testing or
only as a tool for trouble analysis. To change such culture, JEDI
center was established in October 2005. As one of the important
efforts in JEDI center, we started analysis of rocket plume acoustics
both with the short-term and the long-term objectives. Contribution to
the design of JAXA's launching sites is a short-term objective, and
reduction of the period and cost of time-consuming acoustic test for
satellites is a long-term objective. Such analysis will become
feasible with advanced CFD technology and good computer environment,
both of which JAXA fortunately holds. In this seminar lecture, JAXA
and the activity of JEDI center is briefly introduced first. Then,
research effort for rocket plume acoustics is discussed with the key
technology based on the recent and future trend of aerospace CFD.
Basic research to help understanding of the phenomenon is carried out
in the author's own laboratory at the ISAS in conjunction with the JEDI
center. Seminar lecture shows how such effort is combined with
practical simulations for rocket plume acoustics at the launching
site.
BIOGRAPHY
Kozo Fujii is a Professor of Department of Space Transportation at the
ISAS, JAXA, Japan. He is currently a Research Director of the ISAS for
space science as well as a Director of JAXA's Engineering Digital
Innovation (JEDI) Center. He received his Ph.D. from University of
Tokyo in 1980. He spent several years as regular and senior NRC
Research Associates at NASA Ames Research Center. After spending a few
years at National Aerospace Laboratory, He returned to the ISAS in 1988
and became a professor of high-speed aerodynamics in 1997.
His research interests include, high-speed aerodynamics, high
angle-of-attack aerodynamics, and flow visualization mainly with CFD
approach. He is a regional editor of "Computers & Fluids" and "Notes
on Numerical Fluid Mechanics". He has been an associate editor of AIAA
Journal for many years until 2007. He is a Fellow of AIAA and JSME.
He received Guggenheim Award from the International Congress of
Aeronautics and Space Science (ICAS) and other awards for his
contribution to CFD research and the international collaborations.