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CFD Events Calendar, Event Record #1087

Advanced School on Computational Model for Turbulent Multiphase Reacting Flows
The course is addressed to master and PhD students in engineering and science, postdocs and industrial researchers working on simulation and modeling of multiphase polydisperse systems, such as: bubble columns, fluidized beds, aerosol, spray combustion chambers, crystallization and precipitation etc.
Date: July 3, 2006 - July 7, 2006
Location: CISM - Palazzo del Torso - Piazza Garibaldi 18, Udine (UD), Italy
Web Page:
Contact Email:
Organizer: Rodney Fox and Daniele Marchisio
Special Fields: Turbulence - LES Methods, Combustion, Finite Volume Methods, Reactive Flows, Multiphase Flows, Flows with Particles, Numerical Methods
Deadlines: May 15, 2006 (registration)
Type of Event: Course, International

The detailed simulation of turbulent multiphase reacting
flows is of paramount importance for design, optimization, 
and scale-up of relevant processes, such as: turbulent 
combustion, diesel engines, fluidization and particle
technology, crystallization and precipitation processes. 
There are many aspects that need to be taken into account 
in order to properly model such flows. The fluid-dynamic 
interaction between the primary and secondary phases is a 
key factor, in fact, it determines turbulence intensity, 
mixing rates, and mass and heat transfer. In the case of
reacting multiphase flows, this interaction has a strong
influence on reaction rates that, in turn, can heavily 
affect the flow field (e.g., combustion). 
Another key factor is the evolution of the secondary 
phases. In turbulent multiphase reacting flows the 
secondary phases are very often polydisperse, or in other 
words, are distributed over several important properties 
such as characteristic size, composition, and temperature. 
The distribution continuously evolves because of the 
chemical reactions and fluid motion, but in turn the 
distribution itself strongly influences the flow and
turbulence fields and has a strong impact on the chemical
The course aims to describe the most widely applicable 
modeling approaches and it is organized in six groups of 
lectures covering from fundamentals to relevant 
applications. In the first part of the course, some 
fundamentals of multiphase turbulent reacting flows are 
covered. In particular the introduction focuses on basic
notions of turbulence theory in single-phase and multi-
phase systems as well as on the interaction between 
turbulence and chemistry. In the second part of the 
course, models for the physical and chemical processes 
involved are discussed. Among other things, particular 
emphasis is given to turbulence modeling strategies for 
multiphase flows based on the kinetic theory for 
granular flows. Next, the different numerical methods
based on Lagrangian and/or Eulerian schemes are presented.
In particular the most popular numerical approaches of
computational fluid dynamics codes are described (i.e., 
Direct Numerical Simulation, Large Eddy Simulation, and 
Reynolds-Averaged Navier-Stokes approach). The course will 
cover particle-based methods such as lattice-Boltzmann and
dissipative particle dynamics and will also discuss 
Eulerian-Eulerian and Eulerian-Lagrangian techniques based 
on finite-volume schemes. Moreover, the possibility of 
modeling the poly-dispersity of the secondary phases in 
Eulerian-Eulerian schemes by solving the population 
balance equation will be also discussed.

Six lecturers will be involved:
J. Derksen - Delft University of Technology, The 
Netherlands: Particle-based methods for DNS/LES of 
multiphase and turbulent reactive flows: the lattice-
Boltzmann method as a tool for simulating multiphase 
flows, including liquid-solid and liquid-liquid 
R.O. Fox - Iowa State University, USA: Introduction and 
fundamentals of poly-disperse multiphase flows.
B.H. Hjertager - Aalborg University Esbjerg, Denmark: 
Multi-fluid CFD modeling of chemical reactors. 
D.L. Marchisio - Politecnico di Torino, Italy: Moment 
methods for poly-disperse multiphase flows and RANS
modeling of reacting particulate systems. 
M. Massot - Ecole Centrale Paris, France: Multi-fluid 
modeling of the turbulent dispersion of polydisperse
evaporating sprays.
J. Réveillon - University of Rouen, France: Mixture 
fraction topology and flame structures in turbulent
spray combustion: simulation and modeling. How to use 
direct numerical simulations to develop models for spray 
dispersion, evaporation and turbulent combustion.
Event record first posted on April 5, 2006, last modified on April 6, 2006

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