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From 31 May 2021 to 2 June 2021

High-fidelity simulations of Turbomachinery Flows

nasri |  

Deadline for registration: 15 days before the starting date of each training
Duration : 3 days / (21 hours)

Before signing up, you may wish to report us any particular constraints  (schedules, health, unavailability…)  at the following e-mail address : training@cerfacs.fr


Satisfaction index

In May 2019, 100% of participants were satisfied or very satisfied

(results collected from 13 respondents out of 18 participants, a response rate of 72%)


This training course aims at providing advanced training and formation in the field of turbomachinery flows. To do so, participants will reinforce their theoretical background in fluid dynamics as understood in the context of turbomachinery applications. These specificities will then be particularly developed in the specific context of Large Eddy Simulations whenever devised for the prediction of these flows. In this case, introduction and use of the in-house CERFACS LES code, named Turbo AVBP, will be specifically detailed. To do so, Hands-on sessions are organized to put the theoretical courses into practice.

Objective of the training session

The objective of this training course is to become familiar with LES of turbomachinery flows and more specifically the use of the proposed tool Turbo AVBP.

Learning outcomes

On completion of this course, you will be able to:

  • Explain the concept of turbulent scale separation and LES
  • Use and constructed test cases around turbomachinery applications with Turbo AVBP,
  • Define a-priori parameters for a Turbo AVBP LES computation (mesh genration, CPU cost…)
  • Become familiar numeric and modeling of LES for such flows
  • Analyze the predictions

Teaching methods

The training is an alternation of theoretical presentations and practical work. A multiple choice question allows the final evaluation. The training room is equipped with computers, the work can be done in sub-groups of two people.

Target participants

This training session is for students, engineers, physicists and computer scientists who wish to reinforce or extend their theoretical background to the precise use and analysis of LES simulations. Specific use of Turbo AVBP will also be enforced.

Prerequisites and registration

In order to follow this course, you need to:

  • KnowUnix commands.
  • Have basic knowledge of Python.
  • Know numerical flow simulations.
  • Have level B2 of CEFR because the training can take place in French of English depending on the audience.

In order to verify that the prerequisites are satisfied, the following questionnaires must be completed. You need to get at least 75% of correct answers in order to be authorized to follow this training session. If you don’t succeed it, your subscription will not be validated. You only have two chances to complete them.

Questionnaire 1 : https://docs.google.com/forms

Questionnaire 2 : https://goo.gl/forms/dmBNAmZq1aJLknXD2

Questionnaire 3 : https://goo.gl/forms/mbH6Ye8k0GbyYNHt2

After completing the pre-requisite test and obtaining at least 75% correct answers, you can register:


Referent teacher:  Laurent Gicquel


  • Trainees/PhDs/PostDocs : 210 € excl. tax
  • CERFACS shareholders/CNRS/INRIA : 600 € excl. tax
  • Public : 1200 € excl. tax


From 9h to 17h30
Jour 1

  • Physics of turbomachinery flows, aerodynamics of compressor/turbines, losses, flow stability/instabilities
  • Unsteady phenomena, rotor / stator interactions, multi-stages

Jour 2

  • CFD modeling of turbomachinery flows: RANS, URANS, LES state-of-the-art
  • Numeric and modeling in LES of turbomachinery flows: Turbo AVBP context

Jour 3

  • Complex turbomachinery LES: Turbo AVBP setup and case construction
  • Complex turbomachinery LES: Turbo AVBP advanced post-processing

Evaluation of learning

A final exam will be conducted during the training.



Tribute to Françoise Chatelin

Brigitte Yzel |  23 July 2021

  Tribute to Françoise CHATELIN   Virtual & Face to Face event @ Cerfacs 14 October 2021, CERFACS, Toulouse (France) 2 pm - 6.30 pm   Cerfacs is organizing a half scientific day on Thursday October 14, 2021 in tribute to Françoise Chatelin who left us prematurely on May 14, 2020   After graduating from the Ecole Normale Supérieure in Paris (1960-63), and her PhD in Mathematics at Grenoble University (1971) , Françoise Chatelin led with worldwide recognition her research in many areas, from spectral theory for linear operators in Banach spaces and finite precision to Dickson algebras. Professor Chatelin taught at the Universities Grenoble 2 - Pierre Mendès-France and Paris 9 - Dauphine before moving to Toulouse in 1996. She became Emeritus Professor in 2015. She was a visiting researcher at Berkeley and Stanford Universities, IBM San Jose (Ca) and Yorktown Heights (NY). For almost a decade, she was a scientific manager in Industry (in charge of intensive computing) first at the Centre Scientifique IBM France in Paris (1985 -1992) and then in the Central Research Lab of Thales (known as Thomson-CSF at that time) near Paris (1992-95). Françoise Chatelin was Head of the Qualitative Computing group at the Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique (Cerfacs) in Toulouse, France. Professor Chatelin has authored four books; the first three are now classic references available from SIAM. Her second book Valeurs Propres de Matrices (Masson, Paris, 1988) has received the IBM - France prize for « Best Scientific and technical publication 1988 ». Beyond her scientific contribution, Françoise Chatelin played a structuring role on research at CERFACS through multiple thesis on innovative topics. This event is devoted to the human and scientific tribute of her life. As a faithful image of the active and passionate woman that...Read more

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