ASIAN SIMULATION CONFERENCE 2006
JSST 2006

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Keynotes

1. Macro-Micro Interlocked Simulation
Tetsuya Sato
Director-General,
The Earth Simulator Center Japan Agency for Marine-Earth Science and Technology
Abstract: The Earth Simulator has dawned a new era in science and engineering in the sense that any physical system can be holistically simulated so that the future evolution of the system can become predicted with a scientific soundness. This has brought a qualitative leap in simulation science and engineering. What I am now paying most attention to is the future direction of simulation beyond the age of the Earth Simulator. By carefully and deeply comprehending the superiority and capability of the Earth Simulator, we come up with an innovative algorithm and architecture for making another revolution in simulation, which is the Macro-Micro Interlocked (MMI) simulation algorithm. In this presentation I would like to demonstrate several MMI simulation examples to get your reactions about this new scheme.

Biography: He received the B. Electronics, the M. Electronics and the Doctor Electronics degrees from Kyoto University in 1963, 1965 and 1970, respectively. He joined Department of Physics, Kyoto University as research associate, Geophysics Research Laboratory, the University of Tokyo as Associate Professor, Institute for Fusion Theory, Hiroshima University as Professor, and Theory and Computer Simulation Center, National Institute for Fusion Science (NIFS) as Professor and Director. He also served as Associate Director of NIFS. In 2002, he moved to the current position at the Earth Simulator Center of JAMSTEC. He worked at Aeronomy Laboratory of NOAA, Boulder, Colorado, USA as a NRC-NAS resident research associate in 1971-2 and one year at Max-Plank-Institute for Extraterristrische Physik, Garching, Germany, as an Alexander Von Humboldt stipendiat in 1972-1973. Also worked at Plasma Physics Laboratory, Princeton University as a Visiting Scientist, Bell Laboratories as a Visiting Scientist. He has devoted his whole research life to the development progress of simulation science. He received Nishina Memorial@Award(1986), Computerworld Honors 21st Century Achievement Award(2003), Tokyo Creation Award(2004), John Dawson Prize(2005) and others.


2. Collaborative Visualization: Topological Approaches to Parameter Tweaking for Informative Volume Rendering
Issei Fujishiro
Professor, Institute of Fluid Science, Graduate School of Information Sciences, Tohoku University
Abstract
Data crisis frequently arises in solving complex scientific/engineering problems. It has motivated us to develop a collaborative visualization environment which provides the users with the "serendipity" with the aid of effective data-centric parameter tweaking. To this end, we have proposed the concept of volume data mining (VDM), which takes full advantage of knowledge in the field of differential topology to explore the global structure and local features of a target 4D volume. The current VDM tools include critical point histogram; critical/representative isosurface and cross-section extractors; isosurface embedding locator; multi-dimensional transfer function designer with topological attributes; interval volume decomposer; optimal viewpoint locator; and critical timing finder. In this talk, we illustrate the effectiveness of the VDM tools with applications to real datasets from many disciplines.

Biography: Issei Fujishiro is currently a Professor of Transdisciplinary Fluid Integration Research Center and the Director of Complex Dynamics Laboratory, Institute of Fluid Science, and a Professor of Graduate School of Information Sciences, Tohoku University, Sendai, Japan. Before joining Tohoku University, he was a Research Associate at Department of Information Sciences, The University of Tokyo (1985-1988), an Assistant Professor at Institute of Information Sciences and Electronics, University of Tsukuba (1988-1991), an Associate Professor and a Professor at Department of Information Sciences, Ochanomizu University (1991-1998; 1998-2005), and a Visiting Professor of Computer Science Department at The State University of New York at Stony Brook (1994-1995).
Fujishiro received his B. E. and M. E. in information sciences and electronics in 1993 and 1985 both from University of Tsukuba, and his Doctor of Science in information sciences from The University of Tokyo in 1988. His current research interests include volume visualization and graphics algorithms, taxonomic visualization design frameworks, and multi-modal mixed reality environments.
Fujishiro has served on the editorial boards for Transactions of Information Processing Society of Japan (1997-2001), IEEE Transactions on Visualization and Computer Graphics (1999-2003), International Journal of Image and Graphics (2001-2004), and Computers & Graphics (2003 to date). He is currently serving as the founding Chair of Special Interest Group on Visual Data Mining in Visualization Society of Japan and a Vice President of Institute of Image Electronics Society of Japan.
Fujishiro was a Program co-Chair of the Third and Fourth Eurographics/IEEE International Workshops on Volume Graphics (Tokyo, July 2003) and (Stony Brook, June 2005), Chair of Third International Symposium on Transdisciplinary Fluid Integration, a co-Chair of IEEE International Conference on Shape Modeling and Applications 2006, and a co-Chair of First International Workshop on Shapes and Semantics, all in Matsushima, June 2006. He has also served on the program committees for many major international conferences and symposia, including IEEE Visualization Conferences (1994 to date) and IEEE/ACM Biannual Symposia on Volume Visualization (1996 to 2004).
Additional information is available at: http://www.ifs.tohoku.ac.jp/divisions/en/tfirc_trd_cdl.html


‚RDNew PIV-CFD hybrid systems for gas-liquid two-phase flow analysis
Fujio YAMAMOTO
Professor, University of Fukui, Japan
Abstract: Many types of algorithms for PIV and PTV have been developed in the last two decades from simple cross correlation method to binary image cross correlation method, Delaunay tessellation method, velocity gradient tensor method, and recursive cross correlation method. In parallel, useful post-processing schemes for PIV/PTV such as ellipsoidal equation method and inverse analysis method were proposed so that detailed flow structure could be evaluated. Most algorithms have been verified with the aid of numerical simulation techniques based on the fundamental equation of Navier-Stokes, equations of continuity. Recently some new PIV-CFD hybrid systems have been proposed. This paper concerns with such a history of the research and future possibility for further advance in the PIV/PTV and the new hybrid systems which are applied to multiphase flow measurement.
Keywords: Flow visualization, PIV, PTV, PIV-CFD hybrid system, Multiphase flow

Biography: He received the degrees of B (1963), M (1965), and D of Engineering (1979) from Fukui University, Osaka University and Osaka University, respectively. He became a professor of Mechanical Engineering at Fukui University in 1991 and moved to the department of Fiber Amenity Engineering, Graduate School of Engineering at the university in 2001. He served as the dean of the graduate school for two years from 2001 to 2003. His major field constantly has been fluid mechanics for over forty years, and he has contributed world-widely for these two decades to the development and the user-friendly application of PIV in the field of experimental fluid mechanics, including multiphase flow systems. He has made great efforts to develop the new field of PIV-CFD hybrid systems for the last decades. He served as the executive committee chairman twice for the first (1995) and second (1997) international conferences on PIV both of which were held in Fukui, Japan, and now is well-known as the establisher of the international conference on PIV and also the researcher of PIV and its application to the experimental fluid mechanics. He organized around ten international conferences as a chairman, and has still been invited to many international conferences and other universities. He was awarded several times for his academic contribution from Japan Society of Mechanical Engineers, Japan Institute of Iron and Steel, Japan Ministry of Science and Technology, and so on. Further information can be given by visiting his home page: http://mech.mech.fukui-u.ac.jp/~yamamoto/


4. Computational material diagnostics based on limited boundary measurements: An inversion method for identification of elastoplastic properties from indentation tests
Alemdar Hasanoglu (Hasanov)
Full Professor, Dr. of Science, Ph. D, Applied Mathematical Sciences Research Center, Kocaeli University, Turkey
Abstract: In this study a new method for determination of elastoplastic properties from an indentation loading curve is proposed. Mathematical model, based on deformation theory, leads to quasi-static elastoplastic contact problem, given by the monotonically increasing values $\alpha_i>0$ of the indentation depth. The identification problem is formulated as an inverse problem of determining the stress-strain curve $\sigma_{\mbox{i}}=\sigma_{\mbox{i}}(e_{\mbox{i}})$ from an experimentally given indentation curve ${\cal P}={\cal P}(\alpha)$. The inversion method is based on the parametrization of the stress-strain curve, according to the discrete values of the indentation depth. It is shown that the ill-conditionedness of the identification problems depends on the state discretization parameter $\Delta e_{\mbox{i}}$. An algorithm of optimal selection of state discretization parameters is proposed as a new regularization scheme. Numerical examples illustrate applicability and high accuracy of the proposed method.

Biography: Alemdar Hasanoglu Hasanov is currently a Chair of Applied Mathematical Sciences Research Center and Professor of the Department of Mathematics, Kocaeli University, Turkey. Hasanov received his Ph.D. in Computational Mathematics (1982) and Doctor of Science in Mathematical Modeling (1988) from the Moscow State University. He was awarded Medal Academy of Sciences USSR for the work "Computational Express-Nondestructive Diagnostics of Constructional Medium" (1988). Hasanov is a member of the Editorial Board of the International Journal "Inverse and Ill-Posed Problems". He was an organizer and Co-Chair of the First (2002), Second (2004) and Third (2006) International Conferences "Inverse Problems: Modeling and Simulation" (Fethiye, Turkey).
Additional information is available (PDF).


5. Issues and Lessons in Environmental Simulation
Tony Jakeman
Director, Integrated Catchment Assessment and Management Centre (iCAM)
Professor, Centre for Resource and Environmental Studies (CRES)
Editor-in-Chief, Environmental Modelling and Software (Elsevier journal), Australian National University
Abstract: There are many defining features of environmental systems that must be recognized if their modeling is to be effective. Systems tend to be characterized as knowledge-limited and non-stationary, and involve heterogeneous multi-media, while much observational data are qualitative, error-ridden and scant. Increasingly environmental models are becoming essential for informing management and decision making. This aspect necessitates that models must integrate a range of disciplinary knowledge at different scales and simulate a corresponding range of output types - eg ecological, hydrological, social and economic - so that trade-offs can be assessed.
The inexactness of simulation models of environmental system problems means that creativity, rigour, adaptiveness, transparency and participation must be key elements in their development phase. One must be open and creative in the specification of precise model objectives, the selection of model type, its simplicity and the identification/calibration/evaluation approach. Data and resources can become constraints here. Rigour is required in that one must be systematic and consistent in the model development and evaluation process, an adaptive one where iteration and refinement in modeling steps is a feature. Transparency is needed most where technical issues are complex and there is a large potential for uncertainty that is also difficult to quantify. Participation with relevant scientists and end-users helps to ensure that the modeling exercise generates adequate knowledge exchange, is open to scrutiny and enhances ownership of the final products.
The presentation will amplify these considerations but will focus mainly on case experiences with modeling natural resource management problems that aimed to provide support for decision making and managers. It will draw out some of the key issues and lessons from those experiences.

Biography: Tony Jaleman is currently a Director of Integrated Catchment Assessment and Management Centre (iCAM), a Professor of Centre for Resource and Environmental Studies (CRES), and an Editor-in-Chief of Environmental Modelling and Software (Elsevier journal), Australian National University. More information is available (PDF).


6. HLA Based ASP Platform and Its Federation Integration for Collaborative VPD under INTERNET
Xiao Tianyuan
Professor, The National CIMS Engineering Research Center Automation Department of Tsinghua University
Abstract: Collaborative simulation has become the important feature of the modern simulation. As HLA(High Level Architecture) has become one of industrial standards, IEEE 1516, it means that the application areas of HLA has been extended from military to industry, typically, such as collaborative simulation of supply chain systems, intelligent traffic systems, large scale Markov chains, especially, integrated virtual product development, virtual manufacturing, and so on. In this paper, the research progress of HLA based collaborative simulation platform in integrated virtual product development is discussed firstly, then the RMF based collaborative simulation platform is presented, to overcome the shortcomings of single federation architecture. Considering the requirement of e-manufacturing, the ASP based collaborative simulation platform and its federation integration are introduced, including its architecture FIA (Federation Integration Architecture), its integration specification FEI (Federation Executive Infrastructure) and related critical techniques. Finally, two application examples of realized federation integration system are presented in e-manufacturing.

Biography: Prof. Xiao Tianyuan was educated in the Department of Electrical Engineering, Tsinghua University, China, and graduated in 1970. Since then, he has been active in various aspects of automatic control theory and application, system simulation at Automation Department of Tsinghua University. Prof. Xiao is a standing member of CSSC (Chinese System Simulation Community) , a member of CAC(Chinese Automation Community) and the president of CSSA(Chinese System Simulation Association) of CAC(Chinese Automation Community).
Prof. Xiao's research fields cover System Simulation and Virtual Manufacturing (VM). Computer Integrated Manufacturing System (CIMS), Prof. Xiao authored more than 100 articles and technical papers on different Chinese prestigious journals and international journals and conferences, and published four books, "Application on Computer Simulation" and "Continuous System Simulation and Discrete Event System Simulation", "Introduction to System Simulation", and "Virtual Manufacturing Techniques and Systems".