Science and Art Symposium 2000: 3rd International Conference on Flow Interaction of Science and Art with Exhibition/Lectures on Interaction of Science & Art, 28.2 — 3.3 2000 at the ETH Zurich

339 Pages·2000·19.585 MB·English

by  Norman J. Zabusky (auth.), Albert Gyr, Petros D. Koumoutsakos, U. Burr (eds.)

SCIENCE AND ART SYMPOSIUM 2000
SCIENCE AND
ART SYMPOSIUM 2000
3r a International Conference on Flow Interaction of
Science and Art with Exhibition/Lectures on Interaction of
Science & Art, 28.2 - 3.3 2000 at the ETH Zurich
Edited by
ALBERT GYR
IHW-ETH Zurich, Switserland
PETROS D. KOUMOUTSAKOS
IFD-ETH Zurich, Switserland and CTR-NASA Ames, U.S.A.
and
U. BURR
IHW-ETH Zurich, Switserland
IkJft
SPRINGER-SCIENCE+BUSINESS MEDIA, B.V.
A CLP. Catalogue record for this book is available from the Library of Congress.
ISBN 978-94-010-5819-3 ISBN 978-94-011-4177-2 (eBook)
DOI 10.1007/978-94-011-4177-2
Printed on acid-free paper
All Rights Reserved
© 2000 Springer Science+Business Media Dordrecht
Originally published by Kluwer Academic Publishers in 2000
No part of the material protected by this copyright notice may be reproduced or
utilized in any form or by any means, electronic or mechanical,
including photocopying, recording or by any information storage and
retrieval system, without written permission from the copyright owner.
CONTENTS
INTRODUCTION ix
SCART-LECTURE I: Scientific computing visualization
a new venue in the arts
N. Zabuski
COLOR PLATE SERlE I 11
VORTICES
Vortex flows and the perception of movement in still images
L. Schouweiler, T Leweke, M. Lansak and M. Provansal 21
Pairing and acoustics of azimuthally perturbed vortex rings
CCK. Tang, R.CK. Leung and N. WM. Ko 29
Air entrainment by a wavy plate entering a poole of stagnant
liquid
R. Delfos and J Koch 35
Numerical simulation and manipulation of the Vortex dynamics
In a confined flow
1. Mortazavi 41
ART IS DOMINANT
Double-diffusive Christmas tree
A. Tsinober 51
Power of beauty: Streamwise vortices
N. Yurchenko 59
SCART-LECTURE II: Interaction between the "two cultures":
Art & Science
A. Tamir 65
TURBULENCE: COHERENT STRUCTURES
Vortex packets and the structure of wall turbulence - Extended abstract
R.S. Adrian 77
The hidden structure in a round j et
S. McIlwain, A. Pollard and S. Amalfi 79
vi
The interaction between longitudinal vortices in a channel flow visualized
through seeding and hydrogen bubble techniques
H. Kocherscheidt, M. Schmidts and V.l Vasanti Ram 85
TURBULENCE: STATISTIC ASPECTS
Choice of representation modes and color scales for visualization in
computational fluid dynamics
M. Farge 91
COLOR PLATE SERlE II 101
Extracting singularities in turbulent flow with real and complex wavelets
M. Haase III
ART
SCART-LECTURE III: Vortism a basic art
G.E. Koppenwallner and L. Plotter 117
VISUALIZATION AND REPRESENTATION
SCART-LECTURE IV: Gallery of physical phenomena
S. Alekseenko and D. Markovich 127
The role of color in the optical visualization of flows with variable
fluid density
W Merzkirch and N. Ramesh 139
STABILITIES
Direct Navier-Stokes simulations of unsteady vortex breakdown in a
swirling jet
P. Chen and E. Meiburg 143
The transition within the subcritical regime of flow over a circular
cylinder
K. W Lo and N. WM. Ko 149
CONTROLlNG, BIOFLUIDMECHANICS AND LAMINAR FLOWS
SCART -LECTURE V: Microfluidic system for biological agent detection
Y.-F. Chen,1.M. Yang, 1.-J. Gau, c.-M. Ho and Y.-c. rai 159
Artificial shark skin on its way to technical application
W Hage, D. W Bechert and M. Bruse 169
SCART- LECTURE VI: Medusoid vortex rings
P. Koumoutsakos, 1. Walther and 1. Sagredo 177
vii
Computational anatomy of human lung based on the fluid dynamics
R. Takaki and H Kitaoka 179
Paradoxes of fish-like propulsion
L. Koryenna 185
Two-phase flow processes in porous media producing geometric patterns
I Neuweiler and W. Kinzelbach 191
WAVES
SCART-LECTURE VII: Flow patterns in ballet and fluid dynamics
S. Krasnapolskaya and V. Melechko 201
Postcomputational visualization ofbaroclinic wave drift
V. Goriachev, N. Ivanov and E. Smirnov 211
Art, history, self-organization and coherent structures in fluid mechanics
S.P. Bardakhanov and S.A. Kozlov 217
ELASTICITY AND RHEOLOGY
An experimental and numerical investigation of the free vibration of an
elastic cylinder in a cross-flow
R.M C. So, Y Liu and Y Zhou 227
Elongational behaviour of dilute polymer solutions
A: Gampert, T. Eich and C. Wilkes 233
MHD, ASTRO-PHYSICS AND TOPOLOGY
Vision of numerical relativity 1999
W. Benger, H C. Hege and S. Heusler 239
COLOR PLATE SERlE III 247
The ordering effect of a horizontal magnetic field on liquid metal natural
convective flow and its influence on heat transfer
U Burr 257
Knots and braids on the sun
R.L. Ricca 263
Reconnections of elliptical vortex rings
A. Gyr and A. Milller 269
Vorticity induced by electrostatic forces
W. Egli and E.A. Gerteisen 275
viii
MISCELLANEOUS
Simulation of flow over two unequal square cylinders
A. Y. W. Chiu and N w.M. Ko 279
List of addresses of the participants 285
COLOR PLATE SERlE IV 291
Catalogue of the art exhibition 301
Walking on air
N Gyr 303
T. Wildner 305
". ~etzhammer 306
G. Kousbroek 307
E.~.J. Hobijn 308
". Fontijne 310
z. Leutenegger 311
1. Werner 313
COLOR PLATE SERlE V 315
T. Jansen 325
M. Frei 326
D. Renggli 327
R. Signer 328
A. Ehrat 329
B. Lademann 330
~.Gyr 331
H. Schmid 332
COLOR PLATE SERlE VI 333
Introduction
Some words about SCART 2000.
SCART stands for science and art. SCART meetings are organized in a loose time
sequence by an international group of scientists, most of them fluid-dynamicists. The first
meeting was held in Hong-Kong, the second one in Berlin, and the third, and latest, one
in Zurich. SCART meetings include a scientific conference and a number of art events.
The intention is to restart a dialogue between scientists and artists which was so
productive in the past. To achieve this goal several lectures given by scientists at the
conference are intended for a broader public. In the proceedings they are denoted as
SCART lectures. The artists in tum address the main theme of the conference with their
contributions. The lectures at SCART 2000 covered the entire field of fluiddynamics,
from laminar flows in biological systems to astrophysical events, such as the explosion of
a neutron star. The main exhibition by Dutch and Swiss artists showed video and related
art under the title 'Walking on Air'. Experimental music was performed in two concerts.
Video and related art was chosen because this medium of expression is very technical and
closely related to science and technology. In addition, a common aspect of this kind of art
and science is the dimension of time. New ways of possible creative processes were
shown with music. The ear decomposes sound by a Fourier analysis, the brain therefore
interprets sound in a phase space, whereas images are seen in an analogous form in a
physical space. These two impressions are analyzed in two different processing centers in
the brain, and it is more than a philosophical question whether we need both types of
information to get a reliable grasp of reality. Such ideas were also discussed in two
seminars organized by the Collegium Helveticum during the conference. In the
proceedings all those interactions cannot be shown, but we hope to transmit a flavor of
the interdisciplinary effort, which could stimulate the creativity of the reader as well.
Some words about these proceedings.
These proceedings contain the scientific contributions, ordered by themes, as they were
presented at the conference. To show the close relation between science and art, the
proceedings also contain the art part which is reproduced as a catalogue of the exhibition.
This part is edited by Nadia Gyr, the curator of the exhibition.
Due to this concept and due to the esthetic aspects of many scientific contributions, this
book contains a rather extensive representation in colors, 32 pages. It is the hope of the
editors, that this book helps in stimulating the dialog between science and art, and that it
may also contribute to the continuation of such common efforts.
Zurich, January 2000 AlbertGyr
ix
x
List of the members of the committees and of our sponsors
International Conference Local Conference Committee
Committee
E. Meiburg Los Angeles (Chaitman) A Gyr (Chaitman)
R J. Adrian Urbana-Champaign U. Burr
G. Buresti Pisa W. Kinzelbach
R Delfos Delft P. Koumoutsakos
H. Eckelmann G6ttingen A Milller
M. Farge Paris F.-S. Rys
C.M.Ho Los Angeles
N. W.M.Ko Hong Kong Patronage Committee
M.Kiya Sapporo
B.H.K. Lee Ottawa Dr. H.H. Coninx
RE. Luxton Adelaide Publisher TA Media AG.
A. E. Perry Melbourne Dr. J. Estetmann
A Pollard Kingston Lord Mayor of Zurich
P. Orlandi Rom Prof. Dr. A Waldvogel
A. Tamir BeerSheba Vice-president of research &
A Tsinober Tel Aviv industrial relations of the ETH
I. Wygnansky Tel Avivrrucson Zurich
Ackowledgement:
We would like to express our thanks to our sponsors who made this unique event
possible.
The ETH Zurich, the Mondriaan Stichting, the State of The Netherlands, the Swiss
National Science Foundation, the City of Zurich, the TA Media AG, the MIGROS
Kulturprozent and the US Air Force (EOARD).
Scientific Computing Visualization - a new venue
in the arts§
Norman J. Zabusky
Laboratory for Visiometrics and Modeling
Mechanical & Aerospace Engineering and CAlP
Rutgers, The State University of New Jersey
Piscataway, NJ 08854-8058
[email protected]
Abstract: An overview of nearly half a century of involvement with numerical
simulations of wave and fluid phenomena has led me to the "visiometric" or visual
ization and quantification approach that is illustrated in this paper. I believe that
the visiometric approach to simulated scientific data sets will provide opportunities
for artistic innovation and expression.
Keywords: Visualization, quantification, computer simulation, fluid dynamics,
artistic expression, art, computer visualization practitioners.
1. COMPUTER VISUALIZATION PRACTITIONERS, BEAUTY AND
ARTISTIC EXPRESSION
This paper focuses on my personal experiences in the visualization and quantification
of images in the fluid sciences. I believe that this arena will provide computer
visualization practitioners (CVP), that is scientists, programmers and electronic
media specialists, opportunities for artistic innovation and expression. As in other
artistic areas, many people may participate in producing the final product, but it
is the artist who perceives how the data will finally appear and who directs its
production. Let me review some general ideas and images that have led me to make
this statement.
The great physicist Werner Heisenberg [Heisenberg, 1974] presented a talk to
the Bavarian Academy of Fine Arts in 1970 on "The meaning of beauty in the exact
sciences" (chapter XIII). Among other stimulating ideas, Heisenberg repeated one
definition of beauty: "Beauty is the proper conformity of the parts to one another
and to the whole" and affirmed the Latin motto "Beauty is the splendor of the
truth."
§This paper is dedicated to MARTIN DAVID KRUSKAL on his 75th birthday. Our work to
gether in the 1960's on nonlinear wave phenomena and solitons first opened for me the opportunity
to explore the visualization and quantification of simulation phenomena in the sciences.
A. Gyr et al. (eds.), Science and Art Symposium 2000, 1-10.
© 2000 Kluwer Academic Publishers.