85 Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM) Editors E. H. HirschellMiinchen K. Fujii/Kanagawa W. Haase/Miinchen B. van Leer/Ann Arbor M. A. Leschziner/London M. Pandolfi/Torino J. Periaux/Paris A. Rizzi/Stockholm B. Roux/Marseille Springer-Verlag Berlin Heidelberg GmbH ONliNE LIBRARY Engineering http://www.springer.de/engi ne/ Coupling of Fluids, Structures and Waves in Aeronautics Proceedings of a French-Australian Workshop in Melbourne, Australia 3 - 6 December 2001 Noel G. Barton, Jaques Periaux (Editors) Springer Dr. Noei G. Barton CSIRO Mathematical and Information Sdence Locked Bag 17 North Ryde NSW 1670 Australia Professor Jacques Periaux P61e Scientifique Dassault Aviation/UPMC 78 Quai Marcel Dassault 92214 Saint-Cloud France Library of Congress Cala logi ng· i n·P u blical ion·Dala Coupling of fluids, structures, and waves in aeronautics : proceedings of a French·Australian Worksbop in Melbourne, Australia, 3·6 december 2001 IN oei G. Barton, Jaques Periaux (editors). p. cm.·" (Notes on numerica! fluid mechanics and multidisciplinary design; v. 85) Inc1udes bibliographica! references. 1. Air flow .. Matbematics .. Congresses. 2. Coupled prob!ems (Comp!ex systemsl--Congresses. 3. Airp!anes--Design and construction--Congresses. 1. Barton, NoeI G.II. Periaux, ]acques. [II. Notes an numerica! fluid mechanics and multidisciplinary design; v. 85) TL574.F5C682003 629.132'32--dc2\ This work is subject ta copyright. Al1 rigbts are ruerved, wbether the whole ar pari ofthe material is concerned, specifically the righu of translation, reprinting, reuse of i!lustrations. recitations, broadcasting, reproduction an microfilm ar in any olher way. and slorage in data banks. Dupli cation of tbis publication ar parts tbereof is permitted only under the provisions of tbe German copyrigbt Law of Septtmber 9, 1965, in its cunent version, and permission for use must always be obtained rrom Springer-Verlag. Violations are liable for prosecution under the German Copyrigbt Law. hnp:llwww.springer.de ISllN 978-3-642-07294-9 ISBN 978-3-540-44873-0 (eBook) DOI 10.1007/978-3-540-44873-0 CI Springer.Yerlag Berlin Heidelberg 2003 Originally published by Springer-Verlag Berlin Heidelberg New York 2003 Softcover reprint ofthc hardcover Ist edition 2003 Tbe use of general descriptive names, regislered names trademarks. etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulalions and tberefore free for general use. Cover design: deblik Berlin Printed an acid free paper 62f3020/M -5432 1 O NNFM Editor Addresses Prof. Dr. Ernst Heinrich Hirschel Prof. Dr. Maurizio Pandolfi (General editor) Politecnico di Torino Herzog-Heinrich-Weg 6 Dipartimento di Ingegneria D-85604 Zorneding Aeronautica e Spaziale Germany Corso Duca degli Abruzzi, 24 E-mail: [email protected] I -10129 Torino Italy Prof. Dr. Kozo Fujii E-mail: [email protected] Space Transportation Research Division Prof. Dr. Jacques Periaux The Institute of Space Dassault Aviation and Astronautical Science 78, Quai Marcel Dassault 3-1-1, Yoshinodai, Sagamihara, F-92552 St. Cloud Cedex Kanagawa, 229-8510 France Japan E-mail: [email protected] E-mail: [email protected] Prof. Dr. Arthur Rizzi Dr. Werner Haase Department of Aeronautics Hohenkirchener Str. 19d KTH Royal Institute of Technology D-85662 Hohenbrunn Teknikringen 8 Germany S-10044 Stockholm E-mail: [email protected] Sweden E-mail: [email protected] Prof. Dr. Bram van Leer Department of Aerospace Engineering Dr. Bernard Roux The University of Michigan L3M - IMT La Jetee Ann Arbor, MI 48109-2140 Technopole de Chateau-Gombert USA F-13451 Marseille Cedex 20 E-mail: [email protected] France E-mail: [email protected] Prof. Dr. Michael A. Leschziner Imperial College of Science, Technology and Medicine Aeronautics Department Prince Consort Road London SW7 2BY U.K. E-mail: [email protected] v Preface This Volume contains the Proceedings of a French - Australian workshop held in Melbourne, Australia from 3-6 December 2001. Entitled "Coupling of Fluids, Structures and Waves in Aeronautics (CFSWA)", the workshop was principally organised by CSIRO Mathematical and Information Sciences, Dassault Aviation and CNRS. The main purpose was to explore new computational methods and tools for efficient multi-disciplinary design in aero nautics. This enterprise strongly depends on modelling of coupled disciplines and development of associated multi-disciplinary simulation tools. As an example of the requirements, the original logo for the workshop illustrated coupled aeroelas ticity, scattered radar waves and high lift problems. Optimisation is required with respect to mUltiple objectives under conflict. Among the many challenges to be addressed are mathematical, numerical and en gineering problems involving coupled flows, structures and waves. Future prog ress on these topics strongly depends on the physical and mathematical modelling of coupled disciplines and the development of associated multi-disciplinary simu lation tools. Strong couplings require appropriate exchanges of different kinds of information: physical and geometrical description of models, coupling of Partial Differential Equations (PDEs) at interfaces, and specification of boundary condi tions or multi-objective functions in optimisation or control problems. Validation of multi-physics software also requires ever more efficient and accurate graphic visualisation tools representing experimental and computational data stored in da tabases. In particular, the scope of the workshop included the following topics: • mathematical modeling of fluids, • multi-disciplinary design optimi- structures and waves sation • optimal control • drag, noise and signature reduc- • flight dynamics and control tion • robotics and autonomous systems • flow induced noise and turbulence • advanced computational aerody- • aero-acoustics and aero-elasticity namics • aircraft and UAV design • advanced computational electro- • intelligent fluid and material sys- magnetics tems • advanced aircraft structure and • database tools for graphic visual i- materials sation The workshop was attended by 62 delegates originating from Australian and French universities, Australian and French government laboratories (CNRS, CSIRO, DSTO, INRIA, ONERA), and private industry. VII The lectures were thematically grouped into sessions on fluids, structures, waves and numerical methods. Many speakers spoke on the coupling of these themes in the setting of multi-physics. The lectures covered a wide spectrum from fluid dy namics, structures, electro magnetics, optimisation, mathematical and computa tional aspects, and aircraft design. Within the timetable, there was good opportu nity for active discussion by delegates after each presentation. The Round Table discussions entitled "Future Tools for Design and Manufacture ofInnovative Products in the Aeronautics Industry" was a highlight of the work shop and was chaired and moderated by Dr Ron Sandland, Deputy Chief Execu tive of CSIRO. The outcomes are presented in this volume. We wish to acknowledge the support of the three principal organising bodies: • CSIRO Mathematical and Information Sciences • Dassault Aviation • CNRS and also the generous sponsorship and guidance received from • Academy of Technological Sciences and Engineering • ANZIAM (Australian and New Zealand Industrial and Applied Mathe matics) • DSTO Aeronautical and Maritime Research Laboratory • Embassy of the Republic of France in Australia Dr Nick Stokes (CSIRO Mathematical and Information Sciences) is especially thanked for his organisational assistance. Dr Mourad Sefrioui is thanked for valu able assistance in the Round Table discussions. Finally, we are grateful to the French -Australian Chamber of Commerce and In dustry for arranging a very pleasant banquet held at The Australian Club, which was hosted in a convivial and stylish fashion by Mr Daniel Fremont (Direction Generale Internationale of Dassault Aviation). Noel Barton Jacques Periaux CSIRO Mathematical and Information Sciences Dassault Aviation April 2003 VIII Forewords Mathematical models have been used for years with the help of powerful comput ers and numerical analysis to give new possibilities for simulation of complex systems in many scientific domains and industrial application fields, including aeronautics in particular. But in most cases, modelling tools remain enscribed in their peculiar scientific dis ciplines. A new step is now necessary to satisty the demand for more efficient models of real complex systems. It consists in integrating - within the same nu merical simulation - the different physical phenomena, which are not simply su perposed but which are coupled by the nonlinear characteristics of the system or the subsystems. Simplified models with separated physical effects are not adequate for these real complex systems. The complexity of such systems is not only in their structure, but also in their be havior. As a consequence, multiscale representation must be introduced in the models. Aeronautics requires a scientific effort with both multidisciplinary and multi scale approaches. The Australian and French scientific and technical communities are strongly in volved in solving these problems and both have the capabilities for such a chal lenge. The CFSWA workshop gave, with the help of CSIRO, CNRS and Dassault A viation, a sharp evaluation of the state of the art of mathematical tools for aero nautics and established the basis for fruitful future cooperation between the two countries. These Proceedings present this evaluation for the wider scientific com munity. 1.-1. Gagnepain CNRS As a discipline, Mathematics possesses its own rules of elegance, order, consis tency and applicability. These have served the discipline well since the time of Newton. And they will continue to do so. However the emergence of challenging new industrial paradigms creates an op portunity to rethink both the importance and relevance of Mathematics in this context. In parallel, the inexorable march of Moore's Law has created a computa tional environment in which massive simulations are quite feasible and the most complex visualisation requirements can be met. IX The drivers of the new industrial paradigms include quality, cost and integration of design and manufacture. Quality means meeting customers' needs reliably and ef ficiently. In aeronautics this means designing aeroplanes that are "more affordable, safer, quieter and cleaner" (the European vision of future aeronautics). Mathemati cal modelling offers a new path to achieving this commendable goal since realistic simulation of all aspects of the manufacturing process and operational performance is now quite achievable. This is absolutely critical in aeronautics. It also offers the ability to dramatically reduce cycle times in both design and manufacture, to de sign for manufacturability and to innovate around design parameters in a manner that is unachievable in the previous paradigm - constructing and testing prototypes and experimental manufacturing processes. New computational paradigms, involving exponentially increasing speed and memory, permit greater degrees of realism through the incorporation of higher lev els of physics and chemistry in models. In all of the above a strong value proposition is emerging based on improved qual ity and reduced cycle times. It can only be realised however in a multidisciplinary environment in which this high level of mathematical modelling and computational science operates in a manner which is informed by the business context (what are the key problems being faced?) and engineering/manufacturing considerations. Once this environment has been established the sky (pun intended) is the limit! The CFSWA workshop was refreshing in that those present were clearly aware of the potential of the field but also highly cognisant of the challenges of the business environment that will enable this potential to be realised. CSIRO is proud to have partnered with CNRS and Dassault Aviation as principal organisers of this work shop and grateful to an excellent organising team for bringing it to fruition. Ron Sandland CSIRO x CONTENTS Chapter 1 Fluids G.A. BIRD: The effect of noise and vibration on separated flow regions in hypersonic flow .................................................................... . H. M. BLACKBURN: Computational bluff body fluid dynamics and aeroelasticity ............ ... ... ... ... ... ... ... ... ...... ... ... ... ...... ...... ... ... ... 10 S. CANDEL, S. DUCRUIX, T. SCHULLER and D. DUROX: Dynamics and control of flames interacting with pressure waves ............................. 24 P. LE QUERE, E. GADOIN, O. DAUBE, S. XIN and L. TUCKER- MAN: A general method for studying the hydrodynamic stability of flows in enclosures........................... .......................................... 38 Chapter 2 Structures A. DERVIEUX, B. KOOBUS, E. SCHALL, R. LARDAT and C. FARHA T: Application of unsteady fluid-structure methods to problems in aeronautics and space... ... ... ... ... ...... ... ... ... ...... ... ... ..................... 57 J.-P. GRISVAL: Numerical simulation in aeroelasticity for complex con- figurations in a transonic flow.......... . . . . .. . .. . .. . . . . . . . .. .. . . . . . . . . ...... . . . .... 71 K. HOURIGAN, 1. McBEAN, M. THOMPSON and FENG LUI: Nume- rical prediction of flow instabilities and aeroelastic effects .................. ... 87 M.L. SCOTT, M.Q. NGUYEN, Dol. ELDER, J. BAYANDOR, S.P. RAJBHANDARI and R.S. THOMSON: Explicit finite element model- ling ofimpact events on composite aerospace structures... ... .................. 10 1 LIYONG TONG and DONGCHANG SUN: Dynamics and control of smart structures using piezoelectric actuators and sensors ......................... 115 P. TRIVAILO and T. GILBERT: Overview of nonlinear finite element modelling of flexible manoeuvring aerospace structures ... ........... ... .... 129 Chapter 3 Electromagnetics S.J. ANDERSON: Inverse problems in HF radar ...... ... ... ...... ............ 143 C. CALNIBALOSKY: Antenna integration on aircraft; needs and meth- odology ................................................... ............. ... ...... ... ... 158 F. COLLINO and B. DESPRES: An iterative method for time-harmonic integral Maxwell's equations ........................................................... 171 JUNWEI LU: High performance computation and visualization of EMs using an integrated computation system ........................................... 182 XI