von Karman Institute Lecture Series and Events
Advanced concepts for the reduction of flow-induced noise generation, propagation and transmissionMonday 23 November 2020 - Thursday 26 November 2020
This Online lecture series is part of the SmartAnswer project which has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 722401.
A step change in our noise mitigation strategies is required in order to meet the environmental targets or regulations defined for a number of sectors of activity affecting people through noise exposure, such as transportation, building ventilation systems and wind energy production. Besides being a hindrance to our daily life, noise emission is also a competitive issue for industrial stakeholders aiming at better passenger comfort, and quieter domestic appliances in our homes and working places.
New concepts and technological solutions have been emerging over the recent years, triggered by new manufacturing possibilities and a better understanding of the mechanisms involved in aerodynamic noise generation, propagation through duct systems, and transmission through flexible structures. Some of the most promising mitigation technologies will be addressed in a series of lectures given by international experts in their field, who will explain the rationale behind those technologies starting from first principles, together with the technological challenges to overcome towards their implementation in the final applications. The lectures will be punctuated with practical examples of applications relevant to various fields including ducted systems, rotating machineries (ventilation systems, wind turbines and aeroengines), or lightweight low-transmission panels. The course will conclude with a live demonstration of some technologies on a dedicated didactic test bench developed in the framework of the H2020 MSCA project SmartAnswer.
The Director of this lecture series is Professor Christophe Schram of the von Karman Institute.
An online workshop on the H2020 project "SmartAnswer:Smart mitigation of flow-induced acoustic radiation and transmission for reduced aircraft, surface transport, workplaces and wind energy noise" is organized on Thursday 26 November from 9:00 to 17:00. This workshop is free and open to the public. If you are not registred to the lecture series itself, there is a specific registration for the workshop only. For the participants to the lecture series, it is not needed to register to the workshop.
Programme (3 days lecture series and 1 day workshop)
Monday 23 November 2020
8:45 Welcome word
9:00 -10:15 Noise generation, propagation and transmission mechanisms
Christophe Schram, von Karman Institute for Fluid Dynamics, Belgium and Lucas Van Belle, KU Leuven, Belgium
10:45-12:00 Airfoil noise and its reduction with leading and trailing edge serrations
Michel Roger, Ecole Centrale de Lyon, France
14:00-15:15 Aeroacoustic mitigation through shape optimization
Kyriakos Giannakoglou, National Technical University Athens, Greece
15:45-17:00 Porous materials for the damping of turbulence-airfoil interaction and
Christophe Schram, von Karman Institute for Fluid Dynamics, Belgium and Daniele Ragni, TU Delft, The Netherlands
Tuesday 24 November 2020
9:00 -10:15 Introduction to electro-acoustics
Hervé Lissek, École Polytechnique Fédérale de Lausanne, Switzerland
10:45-12:00 Passive and active acoustic liners
Yves Aurégan, Université du Maine, France and Manuel Collet, École Centrale de Lyon, France
14:00-15:15 Acoustic and structural metamaterials
Yves Aurégan, Université du Maine, France and Lucas Van Belle, KU Leuven, Belgium
15:45-17:00 Simulations of in-duct attenuation with advanced liner technologies
Hadrien Bériot, Siemens Industry Software, Belgium
Wednesday 25 November 2020
9:00 -10:15 Rotating machine noise reduction with serrations, conventional and over-the-tip liners
Michel Roger, Ecole Centrale de Lyon, France; Manuel Henner, Valeo, France; Alain Guédel, CETIAT, France; Brian Tester, U. Southampton, United Kingdom
10:45-12:00 Wind turbine flow and noise control with VGs and TE serrations
Pawel Flaszynski, IMP-PAN, Poland; Stefan Oerlemans, Siemens-Gamesa, Spain; Daniele Ragni, TU Delft, Belgium
14:00-15:15 Development of a didactic technological demonstrator
Christophe Schram, von Karman Institute for Fluid Dynamics, Belgium / Early Stage Researchers
Thursday 26 November 2020 9:00-17:00 - SmartAnswer Workshop
9:00 – 9:15 Welcome
9:15 – 9:30 Overview of the SmartAnswer project
C. Schram & J. Christophe, von Karman Institute for Fluid Dynamics, Belgium
9:30 – 10:45 Aerodynamic noise reduction with flow control devices and their industrial perspectives
R. Zamponi , T. Suresh, C. Teruna , L. T. Lima Pereira, G. Bampanis, I. Zurbano Fernández
10:45 – 11:00 Coffee break
11:00 – 12:15 Acoustic control with new material technologies and their industrial perspectives
N. S. Khodashenas , M. D’Elia, F. A. Pires, E. De Bono
12:15 – 13:30 Lunch
13:30 – 14:45 Modeling techniques for noise reduction technologies and their industrial maturity
M. Monfaredi, S. Palleja, C. Sanghavi, A. Zarri
14:45 – 15:15 Feedback from the advisory board
15:15 – 15:45 Wrap-up and Recommendations for the future research and development
Friday 27 November 2020 9:00-17:00 - Consortium meeting (only for consortium members)
9:15 – 9:30 Welcome
9:30 – 10:30 SmartAnswer consortium meeting – remaining tasks for project closure.
J. Christophe & C. Schram
10:30 – 11:00 Open discussions.
The citizens of the following countries are eligible to attend the von Karman Institute Lecture Series:
- EU member countries
- NATO member countries
- NATO's Mediterranean Dialogue (Algeria, Egypt, Israel, Jordan, Mauritania, Morocco, Tunisia)
- Istanbul Cooperation Initiative (Bahrain, Kuwait, Qatar, United Arab Emirates)
- Argentina, Australia, Bolivia, Brazil, Cabo Verde, Cameroon, Chile, Colombia, Japan, India, Indonesia, Macedonia, Malaysia, Mauritania, Mexico, Montenegro, Mozambique, New Zealand, Nigeria, Republic of Korea, Saudi Arabia, Serbia, Singapore, South Africa, Switzerland, Thailand, Uruguay, South-Africa and Vietnam.
VKI reserves the right to request a clearance check with Belgian authorities.
The participants will have to present their ID card (for EU citizens) or passport (for other citizens) the first day of the lecture series.
Fee and Registration
Early bird registration fee (until November 7, 2020 included)
Price for citizens of NATO countries funding VKI
Belgium, Bulgaria, Czech Republic, France, Germany, Greece, Hungary, Iceland, Italy, Luxemburg, Norway, Portugal, Romania, Turkey and the United States
|Early registration||Late registration|
|Staff from recognized universities / research center||756||840|
|Staff from commercial organizations||1890||2100|
Price for citizens of other countries
|Early registration||Late registration|
|Staff from recognized universities / research center||1080||1200|
|Staff from commercial organizations||2700||3000|
Information for PhD candidates and undergraduate students: To obtain the reduced price, the applicant must provide a recommendation letter from his or her professor; if not, the request will not be taken into consideration.
Rebates can be given for group subscriptions along the following scheme :
- 5 persons of the same organization -2%
- 10 persons of the same organization -5%
- 20 persons of the same organization -10%
Location : von Karman Institute for Fluid Dynamics, Waterloosesteenweg 72, B-1640 Sint-Genesius-Rode