CFD Events Calendar, Event Record #25780
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Online training session on thermo-acoustic instabilities
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A short online training course on Thermo-acoustic Instabilities
will be organized by CERFACS in May/June. It aims at
introducing this topic to engineers, PhD students or
researchers willing to get a brief theoretical overview on this
topic. The focus will be on understanding the concepts - not
on mathematics. It starts on Monday, May 28.
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| Date: |
May 28, 2018 - June 24, 2018
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| Location: |
https://cerfacs.fr/en/fundamentals-of-thermo-acoustic-instabilities-2/
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| Contact Email: |
training@cerfacs.fr
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| Organizer: |
CERFACS
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| Application Areas: |
Turbomachinery, Fire and Safety, Automotive, Aerospace
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| Special Fields: |
Combustion, Aeroacoustics & Noise
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| Type of Event: |
Online Event, International
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| Description: |
Context
Coupling between acoustic waves and flames has become a
central issue in the development of many modern
combustion systems because of both
environmental issues (noise) and the destructive interactions
which acoustics can generate in combustors. Numerical tools
are essential in many flames/acoustics studies but a
theoretical background in acoustics and especially in acoustics
for reacting flows is mandatory to tackle such problems.
Scientific content
This online training course presents the fundamental concepts
of thermo-acoustic instabilities. The course content is divided
in 3 consecutive weeks:
- week 1: introduction of the
phenomena
- week 2: laws of 1D acoustic in
tubes
- week 3: interaction between a
flame and acoustic
An interactive live conference will close the
session and will deal with an application case where you will
try to predict the stability of a system. This conference
will be
held during week 4.
Learning outcomes
At the end of this training, you will be able to:
- explain the origin of thermo-acoustic instabilities in a
combustor,
- evaluate the natural frequency of a combustor,
- make recommendations to make an unstable system
become stable.
Organization
This is a fully online training session. It is
divided into 5 consecutive weeks, based on
learning activities delivered each week.
- Week 1 to week 3 require around 2 hours of
work per week. Learning activities are released on
Monday of each week and you have 7 days to complete each
week's activities. The 2 hours of work can be distributed over
the week, depending on your schedule.
- A 1 hour live interactive session will
hold during week 4. This live session will deal with an
applicative case. This live session will also be recorded.
- Last week is dedicated to revising and a final
exam, leading to a certificate of learning.
Our pedagogical principles
All our learning sessions are built upon evidence-based
principles from cognitive psychology and learning research:
- concepts first: the course is
focused on conceptual understanding of the meaning of
equations and how they apply in practical cases (Van
Heuvelen, 1991).
- active learning: the course is
organized around activities especially
designed to make participants interact between each
other, involving a deep
processing of the scientific content previously
shown in short videos (Salmon, 2013).
- long-term retention and transfer:
because you need to apply what you will learn during this
session in the future and in various contexts, our courses are
designed using the 10 laboratory-tested principles drawn from
cognitive psychology (Halpern and Hakel,
2003).
Be prepared to be engaged and to interact with a
community sharing a common goal:
learning the scientific content of this course.
Requirements
While this course is not focused on mathematical aspects,
you need to have a clear understanding of Navier
Stokes equations and a background in mathematical
analysis, in particular with complex number notation.
Course Staff
This course is designed by a group composed of expert
researchers from the field supervised by an expert researcher
in active online learning.
- Dr. Thierry Poinsot: Thierry is director
of research at the CNRS (France), working at the Institute of
Fluid Mechanics of Toulouse and scientific advisor at CERFACS
Toulouse. His topics of research cover both theoretical and
numerical aspect of combustion. He is one of the two authors
of the famous book Theoretical and Numerical
Combustion.
- Dr. Corentin Lapeyre: Corentin Lapeyre
is senior scientist at CERFACS. His phD was on numerical
study of flame stability, stabilization and noise in a swirl-
stabilized combustor under choked conditions.
- Dr. J-F. Parmentier: after getting his
PhD in Fluid Mechanics working on modeling of two-phase
gas-particle flows, he worked for a few years on thermo-
acoustic instabilities in annular combustion chambers. Since
2014 he has oriented his research specifically on learning and
teaching science using active learning methods.
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Event record first posted on April 27, 2018, last modified on April 27, 2018
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