Applied Large Eddy Simulation

Monday 27 and Tuesday 28 October 2008

Organised by Professor Paul Tucker and Dr Sylvain Lardeau

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Dr Andy Brown, Met Office UK (Speaker)

Andy Brown gained his first degree (BA, Physics) from the University of Oxford in 1990, and a PhD ('Modelling turbulent sheared convection') from the University of Surrey in 1995. He joined the Met Office in 1990, initially working in the boundary layer group and later leading the orography group. In both areas the work consisted of developing large-eddy simulation techniques for atmospheric boundary layer flows, and using the results to develop subgrid models for use in weather and climate prediction models. In 2003/4 he spent a year as a consultant at the European Centre for Medium Range Weather Forecasts.  He is now Head of the Atmospheric Processes and Parametrizations section at the Met Office.

John Coupland, Rolls-Royce plc (Chair)

After completing a first degree in Mathematics at the University of Leeds John Coupland joined Rolls-Royce plc in 1976 initially undertaking research and develoment work on aero-engine noise reduction measures. Since that time he has worked in a number of areas in Rolls-Royce plc including combustion and compressor aerodynamics, covering the development of design methods and the coordination of external research projects, and then in CFD development and application, developing a particular interest in turbulence and transition modelling. He has supported the development of simulation techniques, LES and DNS, for application to many aerodynamic problems in the gas turbine, and managed many research projects in this field. His current main activity covers the application of CFD and numerical methods to the problems of noise generation and propagation in the gas turbine, both for tonal and turbulence generated broadband noise.

Professor Mike Cullen, Met Office UK (Speaker)

Professor Cullen has worked in numerical weather prediction for many years. He returned to the Met Office four years ago after a period of secondment at ECMWF and the University of Reading, UK. He was responsible for the development of the Unified Model' which is used operationally by the Met Office for all purposes from local short-range forecasting within the UK to climate prediction on timescales of centuries. He was also responsible for the development of new numerical algorithms for this model, which allowed it to be used on smaller scales. He has specialised in understanding large-scale atmospheric circulations, and the extent to which they can be predicted independently of the small-scale turbulence which cannot be predicted deterministically. In this context, he has worked with experts on partial differential equations, and in particular has been a member of a US National Science Foundation funded research group on mass transportation methods, which has been operating for the last 7 years. His current role at the Met Office is to apply this experience in improving methods of using observations to provide accurate initial data for weather forecasts.

Lars Davidson, Chalmers University of Technology (Speaker)

• June, 1983: Engineer at Chalmers, Göteborg
• May, 1989: PhD at Dept. of Applied Thermodynamics and Fluid Dynamics, Chalmers
• 1989 - 1991: Post-doc. at CERFACS, Toulouse, France
• Autumn 1993: Visiting researcher at CRS4, Cagliari, Italy.
• Jan, 1994: Appointed assoc. prof. at Dept. of Thermo and Fluid Dynamics, Chalmers
• July 1995: Appointed full professor in Heat Transfer at Dept. of Thermo and Fluid Dynamics, Chalmers
• Autumn 1995: Visiting professor at Aalborg University, Denmark
• 2005 - : head of the Division of Fluid Dynamics (10 faculty and 20 PhD students), Chalmers
• March 2007: Awarded "Best supervisor for PhD-students" at Chalmers 2006

Prof Lars Davidson is the head of a research group in CFD, turbulence modelling and unsteady simulations. He is the author or co-author of more than 200 papers (of which 70 journal papers). Prof Davidson has been the supervisor/examiner for 15 PhD students. His own CFD research group includes two assoc. prof one adj. professor and 7 PhD students.

Professor Dimitris Drikakis (Speaker)

Dimitris Drikakis is Professor of Fluid Mechanics and Computational Science and the Head of the Aerospace Science Department at Cranfield University. In 2008, he was awarded the William Penney Fellowship by AWE in recognition of his research in compressible fluid dynamics and computational fluid dynamics and its applications to aerospace and defence sectors. He has over 20 years of research experience in computational fluid dynamics and his current research interests include computational modelling of incompressible and compressible, transitional and turbulent flows, and multi-scale modelling of fluids and materials.  He is the author of about 200 publications in journals, edited books and conference proceedings, as well as the author of the book High-Resolution Methods for Incompressible and Low Speed Flows' (Springer 2005). He is an associate editor of ASME Journal of Fluids Engineering, the Journal of Computational and Theoretical Nanoscience, and the Aeronautical Journal, as well as member of the editorial board of another 9 journals.

Simon Eastwood, University of Cambridge (Speaker)

Simon graduated from the University of Warwick in 2004 with a Masters degree in Mechanical Engineering. He then moved to the civil and computational engineering centre at Swansea University. Here he completed a Master of Research degree in computational modeling. The research part of the degree was on LES of Jet Flows and supervised by Professor Paul Tucker. Simon continued his study of this area with Professor Tucker to PhD level and in September 2007 transferred his enrolment to the Whittle Laboratory at the University of Cambridge. He is just entering the final year of his PhD studies.

Christer Fureby, The Swedish Defence Research Agency - FOI (Speaker)

Christer Fureby is a research director at the Swedish Defense Research Agency - FOI, in the Defense Security Systems Technology Division. For the last 15 years Fureby's research have been focused on computational fluid dynamics and combustion. Areas of special include the development and use of Large Eddy Simulation, LES, models and their applications to complex engineering flow problems. Particular attention has been given to flows around ship hulls and submarines, and combustion applications ranging from laboratory combustors to gas turbines and high-speed propulsion systems. Other areas of interest include magnetodydrodynamics and solid fluid interaction. He is also an adjoint professor in hydrodynamics at Chalmers University of Technology as well as an associate professor in fluid mechanics at Lund Institute of Technology. He received his MS in civil engineering and his PhD in engineering physics from the Lund Institute of Technology, Lund, Sweden. He is a member of the Fluid Dynamics Technical Committee of the American Institute of Aeronautics and Astronautics and is also member of the Combustion Institute.

William K. George, Chalmers University of Technology (Chair)

William K. George was born in Camp Shelby, Mississippi, USA in 1945. He received his BES and PhD degrees in 1967 and 1971 respectively from the Johns Hopkins University in Baltimore, Maryland. He joined the faculty of the Pennsylvania State University in 1968, and left in 1974 for the State University of New York at Buffalo where he was promoted to full professor in 1980. In September 2000, he joined the Department of Applied Mechanics of the Chalmers University of Technology in Gothenburg, Sweden as Professor of Turbulence. A detailed curriculum vita can be found at www.tfd.chalmers.se/trl. His accomplishments are briefly summarized below. He has authored several hundred papers, mostly on turbulence and its applications. He is known for his work on both theoretical and experimental turbulence. His contributions range from measurements in gas turbines and automotive components to fundamental studies of turbulent shear and wall bounded flows. He has supervised 25 Ph.D. students and an equal number of MS students, all of whom hold responsible positions as professors, researchers, or engineers in leading establishments throughout the world. Professor George has lectured extensively throughout the world and has presented invited numerous invited talks, including the 2006 AIAA Fluid Dynamics, the 2003 American Physical Society/Division of Fluid Dynamics, and the 2001 Australasian Fluid Mechanics meeting, among others.. Among his fellowships, honors and awards, the most recent are the 2008 Freeman Scholar Award from the ASME and the Ph.D. Supervisor of the Year award from Chalmers University in 2006. He also received the Robert T. Knapp Award from the ASME Fluids Engineering Division 2002 for the best paper in 2001. He has been a Fellow of the American Physical Society since 1988. He is also a Fellow of the ASME and an Associate Fellow of the AIAA.

Dr Nicholas Georgiadis, NASA Glenn Research Center (Chair)

Nicholas Georgiadis is a researcher at NASA Glenn Research Center in Cleveland, Ohio, USA where he has worked since 1990.  His work has focused on simulation of propulsion flows, particularly turbulent jets, using both Reynolds-averaged Navier-Stokes and Large Eddy Simulation techniques.  Nick is NASA's lead for development of the Wind-US code, one of the most broadly used computational fluid dynamics (CFD) codes by the United States aerospace industry. He is currently leading efforts to enhance Wind-US for the simulation of hypersonic propulsion flows.  In the American Institute of Aeronautics and Astronautics, he has served as chair of the Air-Breathing Propulsion Technical Committee and currently leads the CFD subcomittee of the Fluid Dynamics Technical Committee. He received his PhD from Case Western Reserve University. Nick has authored over 50 publications.

Fernando F. Grinstein, Los Alamos National Laboratory (Speaker)

Fernando Grinstein is Technical Staff Member, X-3 Computational Analysis & Simulation, at the Applied Physics Division, Los Alamos National Laboratory. He served as Research Physicist at the US Naval Research Laboratory between 1983-2005. He obtained his degrees of MSc(1972) and PhD in Physics (1976) at the Balseiro Institute of Physics, University of Cuyo, Argentina. He was the 2003-2004 Orson Anderson Distinguished Visiting Scholar at the Los Alamos National Laboratory. He is Associate Fellow of the American Institute of Aeronautics and Astronautics (AIAA). He served as Chair of the AIAA Fluid Dynamics Technical Committee (2003-2005), Associate Editor of the ASME Journal of Fluids Engineering (2002-2007), and Guest Editor of AIAA Journal (2004, 2006). Fernando Grinstein has been particularly interested in issues of Large Eddy Simulation, turbulent mixing and combustion, computational aeroacoustics and urban scale flow simulations. Dr Grinstein's work on the validation and formalization of the Implicit LES (ILES) approach, has had a solid impact in the flow simulation community. He has taught Professional Development courses on the subject at AIAA, Cambridge and Cranfield Universities, and has taken the lead to integrate the efforts of the worldwide pioneers of the ILES technique in workshops and special meetings (2002 AIAAASM, Reno NV; 2003 CSE-SIAM, SanDiego CA; 2003 AIAA-CFD, Orlando FL; 2004 workshops at LANL, and ECCOMAS 2006 mini-symposia), and in the first comprehensive description of the methodology collected in F. Grinstein, L. Margolin and B. Rider (Eds.), "Implicit LES: Computing Turbulent Flow Dynamics", Cambridge UP, 2007.

Professor Bernard Geurts, University of Twente/ Eindhoven University of Technology (Speaker)

Professional and Educational Record:

• 2005-present: Professor for Multiscale Modeling and Simulation: University of Twente
• 2004-present: Professor for Anisotropic Turbulence, Fluid Dynamics Laboratory, Eindhoven University of Technology (Department of Physics)
• 2002-present: Visiting Scientist - Center for Nonlinear Studies, Los Alamos National Laboratory, New Mexico, USA
• 1999-2004: Visiting Professor - Queen Mary College, University of London, UK
• 1991-2005: University of Twente, assistant - associate professor
• 1989-1991: Philips Research Laboratory - Research associate
• 1986-1989: PhD research in the field of concentrated macromolecular and biological systems under supervision of Prof. Dr. F.W. Wiegel and Prof.Dr.Ir. P.F. van der Wallen Mijnlieff, Faculty of Applied Physics, University of Twente. Title: Contributions to the theory of dense macromolecular systems
• 1980-1985: University of Twente: MSc in Applied Physics and Applied Mathematics: both summa cum-laude. Graduation topics: Nonlinear dynamics (Physics) and Dynamical systems and normal forms (Mathematics)

Scientific Interest

• Multiscale modeling: Turbulence Modulation, Multi-Phase Flows, Stokes flow, Electromagnetic flow-manipulation, Polymer-physics, Rheology, Combustion, Biology, Climate dynamics, Ocean-circulation modeling.
• Analysis and Simulation: Nonlinear Dynamics, Regularization analysis, Variational Modeling, Numerical Methods and Simulation, Lattice-Boltzmann methods, Molecular and Brownian Dynamics, Computational Fluid Dynamics.

Professor Anthony Hutton (Speaker)

Tony Hutton has over thirty years experience in both carrying out and leading research in the field of CFD and associated turbulence modelling. Most of this experience was gained in the nuclear industry. In the early years he led pioneering research into finite element based methods for analysing turbulent flows and associated processes. This work culminated in the FEAT code which is now widely used  within the industry for performance and safety assessments. He was later appointed to a series of Group Head positions during which he assumed increasing responsibility for  computational mechanics R&D within the CEGB/Nuclear Electric.

In 1997 he joined DERA (now QinetiQ) to lead a team engaged on turbulence modelling research for aeronautical flows and, in 2000, he was made DERA Senior Fellow in recognition for this work. He left QinetiQ in 2007 to join Airbus in a strategic technology planning and acquisition role.

Tony is an active member of various national and international committees and organisations. Examples include a Royal Academy of Engineering  working group for reviewing mathematical models of turbulence; the editorial boards of several journals over various periods; and Chairman of the  ERCOFTAC Industrial Advisory Committee (1995 -2005). In 1997 he launched and subsequently led a European initiative on Quality and Trust in Industrial CFD'. This has made considerable progress in setting down standards and guidance procedures for CFD practitioners and has received wide international acclaim. He is frequently invited to lecture on the topic. Tony was  appointed Visiting Industrial Professor in Mathematics and Mechanical Engineering at Bristol University in 1995, and elected Chairman of ERCOFTAC in 2006.

Professor Siniaa Krajnović, Chalmers University of Technology (Speaker)

Prof. Siniaa Krajnović has obtained his PhD from Chalmers University of Technology in Gothenburg, Sweden in 2002. The topic of his thesis was  Large-Eddy Simulations for Vehicle Aerodynamics. Since then he has hold positions of Assistant Professor and later Associate Professor at Chalmers. Topics of his research range from time-dependent numerical simulations of bluff body and vehicle flows, aerodynamic shape optimization to flow control. During last two years he has been very active in the field of high-speed train aerodynamics. Prof. Krajnović is today responsible for several projects concerning aerodynamics of the new Swedish highsspeed train (in the "Green Train" project). The aim of the project "Green Train" is to develop a new high-speed that will operate at speed of 250-340 km/h on conventional tracks.

Dr Sylvain Lardeau, Imperial College London (Organiser)

Dr Sylvain Lardeau is scientific manager of the Wing Technologies Centre at Imperial College London since 2006. His main technical expertise are modelling and simulation of transitional and turbulent flow (Imperial College London, 2002-2004 and from 2006, and Laboratoire d'Etude Aerodynamique de Poitiers, 1998-2001). He also worked on new types of inflow conditions for simulation methods based on POD reconstruction of experimental results. In industry between 2005 and 2006 (PSA Peugeot-Citroen), his main task was to define and apply methodologies to simulate flows around real car geometries. He also tested the capabilities of Large-Eddy Simulation to simulate very complex flows around cars.

Michael A Leschziner, Imperial College London (Speaker)

Michael Leschziner heads the Turbulent Flow Modelling and Simulation Research Group at Imperial College London, where he is Professor of Computational Aerodynamics. His research interests include:  turbulence modelling and simulation (RANS and LES); Numerical approximation techniques; Efficient solution methods (multigrid schemes in particular); High-performance computing computing with domain decomposition technique; Modelling shock/boundary-layer interaction; External aerodynamics, especially for high lift and involving separation; Flow control; Modelling particle dispersion in two-phase flows; Computational modelling and simulation of geometrically and physically complex turbulent flows - turbomachine flows (especially wake/blade interaction), 3D jets, car aerodynamics, complex duct flows, buoyant and swirling flows. He has published 250 papers on a broad range of topics involving the development and application of statistical turbulence models and simulation methods, with emphasis on complex separated flows.

Len Margolin, Los Alamos National Laboratory (Speaker)

Len Margolin is a computational physicist who combines interests in statistical physics, fluid and solid mechanics, applied mathematics and numerical methods to develop predictive models for numerical simulation.  He has worked at Los Alamos National Laboratory for most of his career and published in a variety of areas including atmospheric physics, turbulence and multiphase flows, fracture mechanics and high-speed fluid dynamics.  He is co-author of a recent book on Implicit Large Eddy Simulation.

Kevin Menzies, Rolls-Royce plc (Speaker)

After graduating with a Mathematics degree from Imperial College London in 1986, Kevin joined Rolls-Royce plc working on the development and application of CFD techniques to complex gas turbine flows.  He is one of the company's leading experts in turbulence modelling and simulation and the application of CFD techniques to the flow phenomena found in gas turbines.  He has particular interests and expertise in turbulence modelling and LES for flows in combustors, engine intakes and exhaust systems as well as the application of optimisation to engine design and the education of CFD practitioners.  Kevin has contributed to numerous UK national and international research programmes on CFD modelling and validation, with funding from UK government and EU, and collaborated with a number of leading university research groups. 

Kevin is a Member of the Royal Aeronautical Society and a Fellow of the Institute of Mathematics and its Applications.

Pierre Sagaut, Université Pierre et Marie Curie - Paris 6 (Speaker)

Education:

• 1995 : PhD in Mechanics, Université Pierre et Marie Curie (research carried out at ONERA CFD & Acoustics Dept.)
• 1999 : Habilitation à Diriger des Recherches, Université Pierre et Marie Curie Career
• 1995-2002 : senior scientist at ONERA (CFD & Acoustics Dept.)
• 2002- : Professor at Université Pierre et Marie Curie, School of Engineering, Institut Jean Le Rond d'Alembert (formerly Laboratoire de Modélisation en Mécanique); Head of the « Turbulence and reactive flows » group
• 1999- : part-time assistant professor at Ecole Polytechnique (Mechanics Dept.)
• Scientific advisor at: ONERA, IFP, CERFACS

Miscalleneous

• Member of the research Council of Université Pierre et Marie Curie (2005 - )
• Member of the Administration Council of Université Pierre et Marie Curie (2008 - )
• Editorial board membership: Theoretical and Computational Fluid Dynamics (2002- 2007), Journal of Scientific Computing, Progress in CFD, Mécanique & Industrie,Scientific Computations Series (Springer)

Publications

• About 90 articles in peer-reviewed international journals, 5 monographs

Research

• Fluid mechanics, numerical methods, turbulence, turbulence modelling, aerodynamics,aeroacoustics, uncertainty modelling

Dr Dieter Schwamborn, DLR, German Aerospace Center (Chair)

Dr. Schwamborn received his Diploma in Aerospace Engineering from the Technical University of Aachen in 1977. He joined DLR (German Aerospace Centre) on a PhD Scholarship which led to his PhD (Dr. Ing.) in 1981 (also from Technical University of Aachen). Afterwards he stayed with the DLR Institute of Theoretical Fluid Mechanics, where he continued first his work on the numerical simulation of the 3D boundary layers. Later he moved his interest to the numerical simulation of the 3D Navier-Stokes for aerodynamic applications. In 1990 he became head of the Numerical Method department in the same institute. He held this position through several changes in the DLR structure leading to the foundation of the Institute of Fluid Mechanics in 1994 which was joined with the Institute of Design Aerodynamics in 2002 to form today's Institute of Aerodynamics and Flow Technology. During the past years his group has developed DLR's unstructured Navier-Stokes solver TAU, which has become the preferred hybrid flow simulation software of Airbus to date.  Today he is one of the two heads of C²A²S²E (Centre of Computer Applications in Aerospace Science and Engineering), a joint initiative of DLR, Airbus and the state of Nether Saxony, which has been established as a department of Institute of Aerodynamics and Flow Technology.

Professor Paul Tucker, University of Cambridge(Organiser)

Paul Tucker is the Rank Professor of Engineering at the University of Cambridge & is based in the Whittle Laboratory. His key research interest is the computation of unsteady, turbulent, complex geometry aerodynamic flows. He completed his PhD at Sussex University, was senior Lecturer at Warwick University before becoming Professor of CFD at Swansea University. He recently completed a 12 month linked visited to Boeing and NASA Langley working on aspects of turbulence modelling.

David Youngs, AWE (Speaker)

David Youngs was educated at Ashford Grammar School in Kent and obtained a BSc in mathematics at Nottingham University in 1967. He then joined what has now become the  Design Physics Department at AWE to work on a variety of different aspects of  computational physics. David is also a visiting professor at Cranfield University. His most notable achievements are the development of a high-resolution numerical  technique for highly distorted compressible fluid flow with material interfaces (in the 1980s) and research into Rayleigh-Taylor turbulent mixing.The latter includes one of the first applications of the MILES approach for calculating turbulence.  David's current activities involve three-dimensional numerical simulation of  compressible turbulent mixing and related work on the construction engineering models for complex applications. He is also a founder and one of the organisers of a series of international workshops (IWPCTM) on this subject.