ERCOFTAC/SIG 42

Conference on Synthetic Turbulence Models

  11th - 12th July 2013, Wrocław, Poland

Synthetic turbulence and vortex dynamics

 

Wrocław University of Technology, Poland




Organizers

Pr H. Kudela
Wrocław University of Technology, Poland

 Dr A. Nowakowski
A.F.Nowakowski@sheffield.ac.uk
University of Sheffield, Sheffield Fluid Mechanics, SFMG - Department of Mechanical Engineering, Sheffield, United Kingdom
 Dr F. Nicolleau
F.Nicolleau@sheffield.ac.uk
University of Sheffield, Sheffield Fluid Mechanics, SFMG - Department of Mechanical Engineering, Sheffield, United Kingdom
Aims of the conference: 
- This conference is the 9th  held by the ERCFOFTAC  Special Interest Group on Synthetic Turbulence Models. It follows
(1) - 29th-30th May 2007, The University of Sheffield, UK ERCOFTAC bulletin 75, 2007 
(2) - 29th-30th November 2007 UPC, Vilanova i la Geltru, Spain ERCOFTAC bulletin 77, 2008 
(3) - 3th-4th July 2008 The University of Newcastle, UK ERCOFTAC bulletin 79, 2009 
(4) - 11th-12th December 2008 Nancy-Université; France ERCOFTAC bulletin 79, 2009 
(5) - 1st-3rd July 2009 Warsaw University of Technology, Poland ERCOFTAC bulletin 81, 2009 
(6) - 15th-6th July 2010Ecole Centrale de Lyon, France ERCOFTAC bulletin 85, 2011 
(7) - 22nd-23rd Sept 2011Imperial College, London, UK  ERCOFTAC bulletin 89, 2011
(8) - 28th-29th June 2012Université Pierre et Marie Curie, Institut Jean le Rond d'Alembert, Paris, France   ERCOFTAC bulletin ??, 2013


Conference Program: 

Preliminary talks, please contact the organiser if you would like to give a talk
 & programme: 

A. Baggaley, University of Glasgow, Department of Mathematics, UK Vortex-density fluctuations, energy spectra and vortical regions in superfluid turbulence T. Bobiński, Ł. Klotz and J. Rokicki, Warsaw University of Technology, Poland Flow Bifurcations in a Wake Behind Bluff Bodies A. Boguslawski, A. Tyliszczak, S.Drobniak and D. Asendrych, Politechnika Częstochowska, Poland Self-sustained oscillations in a homogeneous density round jet Christophe Henry, Maria Knorps and Jacek Pozorski, Polish Academy of Science (PAN), Gdansk, Poland A study of particle agglomeration in flow: perspectives for kinematic turbulence simulations A. Kosior and H. Kudela, Wrocław University of Technology, Institute of Aviation, Poland Simulation of the vortex tube reconnection using graphics cards and parallel computations by Vortex in Cell method. T. Kozlowski and H. Kudela, Wrocław University of Technology, Poland Fly simulation cause by flapping of the profile using the vortex particle method. H. Kudela, Wrocław University of Technology, Poland Self-similar collapse of n vortices T. Michelitsch, G. Maugin, S. Derogar, F. Nicolleau and A.F. Nowakowski, Université Pierre et Marie Curie, Institut Jean le Rond d'Alembert, Paris, France Application of the self-similar fractional Laplacian approach for prediction of Kolmogorov energy A. F. Nowakowski, Sheffield Fluid Mechanics Group, University of Sheffield, UK Vortices in synthetic multicomponent flows M. W. Reeks, School of Mechanical and Systems Engineering, University of Newcastle, UK Particle drift in turbulent flows: the influence of local structure and inhomogeneity N. M. Sangtani Lakhwani, F. C. G. A. Nicolleau and W. Brevis, Sheffield Fluid Mechanics Group, University of Sheffield, UK Vortex generation after a fractal orifice F. Tejero, P. Doerffer and P. Flaszynski, Instytut Maszyn Przepływowych, Polish Academy of Science (PAN), Gdansk, Poland Streamwise vortex creation in time K. Kiecłczewski and E. Tuliszka-Sznitko, Poznan University of Technology, Poznan, Poland LES of the turbulent flow with heat transfer in rotating system A. Tyliszczak and B.J. Geurts, Politechnika Częstochowska, Poland - Twente University, Holland LES of excited circular and rectangular jets L. Zhou, Lehrstuhl für Strömungsmechanik, Institute of Fluid Mechanics, LSTM, Erlangen-Nuremberg, Germany Wavelet Synthetic Turbulence Audience: This conference on synthetic turbulence organised by ERCOFTAC/SIG 42 is open to anyone interested in flow modelling and/or "synthetic turbulence" including (but not restricted to) Kinematic Simulation, (KS hereinafter).
More fundamental talks on particle dispersion in turbulent flows or fluid dynamics are also welcome.

Motivation:
KS is widely used in various domains, including Lagrangian aspects in turbulence mixing/stirring, particle dispersion/clustering, and last but not least, aeroacoustics. Flow realisations with complete spatial, and sometime spatio-temporal, dependency, are generated via superposition of random modes (mostly spatial, and sometime spatial and temporal, Fourier modes), with prescribed constraints such as: strict incompressibility (divergence-free velocity field at each point), high Reynolds energy spectrum, ... Recent improvements consisted in incorporating linear dynamics, for instance in rotating and/or stably-stratified flows, with possible easy generalisation to MHD flows, and perhaps to plasmas. KS for channel flows have also been validated.
However, the absence of "sweeping effects" in present conventional KS versions is identified as a major drawback in very different applications: inertial particle clustering as well as in aeroacoustics. Nevertheless, this issue was addressed in some reference papers, and merits to be revisited in the light of new studies in progress.
A further goal of this conference is to bring people from different disciplines together. In particular recent emerging fractal approaches have the potential to provide the framework for the construction of new synthetic turbulent flows. Interdisciplinary contributors are especially invited to contribute.

A non-exhaustive list of related topics can be proposed as follows:
- Synthetic models of turbulence (KS and others), - Lagrangian aspects of turbulence,
- Vortex dynamics and structure formation,
- Particle dispersion/clustering,
- Vorticity and multiphase flows,
- Vortex methods,
- DNS/LES and related techniques, - turbulent flows and multiscale (fractal) shapes, ... Participants (preliminary):
A. Baggaley, University of Glasgow, Department of Mathematics, UK
T. Bobiński, Warsaw University of Technology, Poland
A. Boguslawski, Politechnika Częstochowska, Poland
A. Kosior, Wrocław University of Technology, Poland
T. Kozlowski, Wrocław University of Technology, Poland
H. Kudela, Wrocław University of Technology, Poland
T. Michelitsch, Université Pierre et Marie Curie, Institut Jean le Rond d'Alembert, Paris, France
J.-M. Redondo, UPC, Barcelona, Spain
M. W. Reeks, School of Mechanical and Systems Engineering, University of Newcastle, UK
F.C.G.A. Nicolleau, University of Sheffield, Sheffield Fluid Mechanics Group, UK
A. F. Nowakowski, University of Sheffield, Sheffield Fluid Mechanics Group, UK
N. Sangtani-Lakhwani, University of Sheffield, Aerodynamic Group, UK
F. Tejero, Instytut Maszyn Przepływowych, Polish Academy of Science (PAN), Gdansk, Poland
E. Tuliszka-Sznitko, Poznan University of Technology, Poznan, Poland
A. Tyliszczak, Politechnika Częstochowska, Poland
L. Zhou, Institute of Fluid Mechanics (LSTM) FAU, Erlangen-Nuremberg, Germany

There is a participation fees of 100 € for participants from industry 50 € for academic participants Few waivers are available and few grants may be available from Ercoftac for young researchers, please contact organisers to check if you are eligible for fee reduction/waivers or for more information.


The information on the rooms location is in the programme

Opening Ceremony followed by registration at Wroclaw University of Technology (Gmach Główny Politechniki Wrocławskiej) Wybrzeże Wyspiańskiego street (number 27) Main building (A1), room 127 Conference venue Na Grobli street (number 15), Building (L1), room A1 http://wikitravel.org/en/Wroc%C5%82aw http://www.wroclaw.pl/ http://www.wroclaw-life.com/