ERCOFTAC/SIG 42

10th Conference on Synthetic Turbulence Models

  4th and 5th September 2014, Erlangen, Germany

Synthetic turbulence, wavelet and CFD

 

LSTM University of Erlangen-Nuremberg, Germany




Organizers

Pr A. Delgado
LSTM University of Erlangen-Nuremberg
Cauerstraße 4 (LSTM), 91058 Erlangen, Germany
Long Zhou
long.zhou@fau.de
LSTM University of Erlangen-Nuremberg
Cauerstraße 4 (LSTM), 91058 , Erlangen, Germany
Dr F. Nicolleau
F.Nicolleau@sheffield.ac.uk
University of Sheffield, Sheffield Fluid Mechanics, SFMG - Department of Mechanical Engineering, Sheffield, United Kingdom
Dr T. Michelitsch
michel@lmm.jussieu.fr
Institut Jean le Rond d'Alembert, CNRS UMR 7190
Université Pierre et Marie Curie (Paris 6), Paris, France
Dr A. Nowakowski
A.F.Nowakowski@sheffield.ac.uk
University of Sheffield, Sheffield Fluid Mechanics, SFMG - Department of Mechanical Engineering, Sheffield, United Kingdom
Aims of the conference: 
- This conference will be the 10th  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 T he 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 2010 Ecole Centrale de Lyon, France ERCOFTAC bulletin 85, 2011 
(7) - 22nd-23rd Sept 2011I mperial College, London, UK  ERCOFTAC bulletin 89, 2011
(8) - 28th-29th June 2012 Université Pierre et Marie Curie, Institut Jean le Rond d'Alembert, Paris, France   ERCOFTAC bulletin 93, 2012
(9) - 11th - 12th July 2013 Wrocław University of Technology, Poland    ERCOFTAC bulletin 97, 2013



Conference Program: 

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



M. Bestehorn, Lehtstuhl für Theoretische Physik Brandenburgische Technische Universität, Cottbus, Germany
Pattern Formation in Vibrating Thin Films

W. Brevis, Sheffield Fluid Mechanics Group, University of Sheffield, UK
POD analysis of the wake developed by porous obstacles in shallow waters

A. Delgado, University of Erlangen, Germany
TBA

J. Jovanovic, University of Erlangen, Germany
Progress in understanding viscous drag reduction

N. Malik, King Fahd University of Petroleum and Minerals, Saudi Arabia
1) Recent advances in turbulent pair diffusion theory
2) Large scale sweeping in kinematic simulations - is it really a problem in pair diffusion studies?

T. Michelitsch, G. Maugin, F. Nicolleau  and  A.F. Nowakowski, Université Pierre et Marie Curie, Institut Jean le Rond d'Alembert, Paris, France
A Lévy walk model for turbulent diffusion

F. Nicolleau, M. Farhan and A.F. Nowakowski, Sheffield Fluid Mechanics Group, University of Sheffield, UK
Inertial particle clustering in 3D KS (TBC)

A. F. Nowakowski, Sheffield Fluid Mechanics Group, University of Sheffield, UK
Vortices in multicomponent flows

C. Rauh, Institute of Fluid Mechanics (LSTM) FAU, Erlangen-Nuremberg, Germany
TBA

J.M. Redondo, Fisica Aplicada UPC, Spain
TBA

N. M. Sangtani Lakhwani, M. Garo-Sail,  F. C. G. A. Nicolleau and W. Brevis, Sheffield Fluid Mechanics Group, University of Sheffield, UK
Vortex generation after a fractal orifice

J. Schröttle, German Aerospace Centre Institute of Atmospheric Physics, Germany
TBA

M. Skarysz, Physique et Mécanique des Milieux Hétérogènes, Ecole Supérieure de Physique et Chimie Industrielles de Paris (ESPCI)
The wake behind a rotating sphere

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):
M. Bestehorn, Lehtstuhl für Theoretische Physik Brandenburgische Technische Universität, Cottbus, Germany
W. Brevis, University of Sheffield, Department of Civil and Structural Engineering, Sheffield Fluid Mechanics Group, UK
A. Delgado, University of Erlangen, Germany
M. Garo-Sail, ENSEEIHT - Department Hydraulics and Fluid Mechanics, Toulouse, France
J. Jovanovic, University of Erlangen, Germany
N. Malik, King Fahd University of Petroleum and Minerals, Saudi Arabia
T. Michelitsch, Université Pierre et Marie Curie, Institut Jean le Rond d'Alembert, Paris, France
C. Rauh, Institute of Fluid Mechanics (LSTM) FAU, Erlangen-Nuremberg, Germany
J.-M. Redondo, UPC, Barcelona, Spain
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, Aerodynamics Group, UK
J. Schröttle, German Aerospace Centre Institute of Atmospheric Physics, Germany
M. Skarysz, Physique et Mécanique des Milieux Hétérogènes, Ecole Supérieure de Physique et Chimie Industrielles de Paris (ESPCI), France
L. Zhou, Institute of Fluid Mechanics (LSTM) FAU, Erlangen-Nuremberg, Germany
Practical information Some of the hotels are close to the city center but unfortunately, none of them are very close to LSTM which locate in south part of Erlangen and about 3-5 km far from city center. However, the bus connections are very convenient in Erlangen. Some hotels in Erlangen
Location
LSTM University of Erlangen-Nuremberg Cauerstraße 4 (LSTM), 91058 Erlangen, Germany
Programme