About Program
There are many new features planned for ETC16.
In addition to the presentation of papers and Invited Lectures, this edition will host three workshops, a special session and events of EVI-GTI partner.
The 2025 ETC conference is organized by Euroturbo with the collaboration of EVI-GTI, which will manage and operate a three-day parallel session focusing on testing, measurement techniques and experimental validation. In addition to the presentation of the papers selected for the conference, this new session will host others presentations and activities, similar to previous EVI-GTI conferences.
Program at a glancev.040425
Technical Program
v.040425
Invited Lecturers
Building 8130, Room 030 / 10:15 am – 11:15 am

Prof. Tony Arts
Honorary Professor, von Karman Institute for Fluid Dunamics
Biography
Education
- Docteur en Sciences Appliquées (PhD), Université Catholique de Louvain, Belgium, 1982
- Post-Graduate Diploma Course, von Karman Institute, Belgium, 1979
- Ingénieur Civil Mécanicien, Université Catholique de Louvain (UCL), Belgium, 1978
Career
- 2022 – present: Honorary Professor, von Karman Institute, Belgium
- 2005 – 2022: Full Professor, von Karman Institute, Belgium
- 1999 – present: Chargé de cours invité (Invited Associate Professor), University of Louvain, Belgium
- 2003 – November 2020: Head of the Turbomachinery and Propulsion Department, von Karman Institute, Belgium
- 2008 – 2012: Special appointment to Graduate Faculty at Purdue University, USA
- 1994 – 2005: Professor, von Karman Institute
- 1988 – 1993: Associate Professor, von Karman Institute
- 1982 – 1987: Assistant Professor, von Karman Institute
- 1980 – 1981: Military service, research assistant, Royal Military Academy, Belgium
Awards and memberships
- ASME Member since 1996
- Ernst Zimmerman Memorial Award 1986
- Member at Large, NATO STO/CSO, Applied Vehicle Technology Panel
- International Committee member Japanese Gas Turbine Society
- ASME IGTI Gasturbine conference 2008, Heat transfer Committee “Best Paper award”
- Observer, Board of Directors, CENAERO Belgium
- International Committee member Japanese Gas Turbine Society
- Arthur Charles Main Prize 2011 (Institution of Mechanical Engineers – United Kingdom)
Abstract
The validation of RANS, URANS and LES solvers is very often relying on available experimental data. These measurement results need of course to be reliable, well described (with all available boundary conditions) and publicly available to allow fair cross-comparisons between different users.
Professor Claus Sieverding fully and wisely supported this need. During his career, one important point of attention was to provide original turbine geometries, their performance (at high and low speed), and therefore adapting or even developing several test sections and wind tunnels for this purpose at the von Karman Institute for Fluid Dynamics.
The aim of this invited lecture is to travel through his major contributions in this field, to try to indicate the interest received in many parts of the world … and maybe to suggest new interest among the younger CFD developers.
Building 8130, Room 030 / 08:30 am – 09:30 am

Prof. Marko Bacic, FIET
Engineering Fellow – Control Systems & Gas Turbine Functionality, Rolls-Royce Plc. // Prof of Engineering Science, University of Oxford
Biography
Marko Bacic is an Engineering Fellow of Rolls-Royce plc. and is also a Professor of Engineering science at Oxford University. He has been designing mechatronic systems for over 15 years with his engineering innovations ensuring engine safety and reducing carbon footprint of Rolls-Royce modern aero engines. Marko specialises in bridging the gap between low TRL research and product introduction accelerating early stage research to deliver tangible business benefits. Marko’s has been at the technical forefront of Rolls-Royce’s original eVTOL flight vehicle and propulsion demonstration programme, presented at Farnborough 2018 and subsequently led the development of MW class eVTOL flight propulsion ground demonstrator in collaboration with Cranfield Aerospace Solutions that completed in 2020. Since then he has provided technical leadership on hydrogen fuel and control systems on Rolls-Royce Hydrogen Gas Turbine Programme from its inception. Marko’s fundamental research interests lie on the intersection of control, fluid dynamics and heat transfer with his research group at Rolls-Royce University Technology Centre at Oxford investigating active flow control concepts for future aero gas turbine applications.
In 2020, Marko received Royal Academy of Engineering Silver medal that recognises outstanding personal contribution to British engineering that has resulted in successful market exploitation.
Abstract
Sustainable aircraft be it conventional or VTOLs require the use of battery storage, non-carbon-based fuels, or closing the CO2 cycle. This technical talk will address key challenges in architecting powertrains for such aircraft. The first ½ of the talk will set the context in terms of platform level fundamental performance limits(payload/range) with respect energy density of various carriers (GH2/LH2 hydrogen, kerosene, battery) using examples of conventional and VTOL aircraft. The second part of the talk will then focus on liquid hydrogen as a carrier and illustrate key aspects of fuel system design that need to be addressed for feasible propulsion: pumping/compression, pre-heating & metering.
Building 8130, Room 030 / 08:30 am – 09:30 am

Prof. Spencer J. Sherwin
Head of Department and Professor of Computational Fluid Mechanics in the Department of Aeronautics at Imperial College London
Biography
Spencer Sherwin is Head of Department and Professor of Computational Fluid Mechanics in the Department of Aeronautics at Imperial College London. He received his MSE and PhD from the Department of Mechanical and Aerospace Engineering Department at Princeton University. Prior to this he received his BEng from the Department of Aeronautics at Imperial College London. Professor Sherwin leads an active research group specializing in the development and application of parallel high order spectral/hp element methods (Nektar++) for flow around complex geometries with a particular emphasis on vortical and bluff body flows and biomedical modelling of the cardiovascular system. More recently, he has been closely involved in industrial application of these methods through partnerships with McLaren Racing, Airbus and Rolls Royce
Abstract
Advanced high order methods using Spectral/hp element discretization [1] including Galerkin, Discontinuous Galerkin (DG) and Flux Reconstruction (FR) formulations are gaining notable interest in both the academic and industrial sectors. The compact nature of the approach is not only attractive from the perspective of implementation on modern computational hardware but also provides a consistent geometric and spatially localized accuracy unlike many high order finite volume methods. These features make the methodology attractive in complex geometry flows involving transitional and turbulent boundary layers demanding a high level of accuracy for high end engineering applications that commonly arise in the automotive and aeronautical sectors.
In this presentation, we will present our current work on developing and advancing spectral/hp element incompressible and compressible flow solvers for industry relevant, high-fidelity applications [2]. The demands of handling “industrial strength” complex geometries at high Reynolds numbers presents a number of challenges both in terms high order mesh generation [2], stabilization of marginally resolved flows [3,4] and maintaining computational efficiency. In this presentation we will highlight our on-going efforts to address all these challenges and demonstrate the suitability of the approach for several representative examples.
REFERENCES
[1] Karniadakis G and Sherwin S 2005 Spectral/hp element methods for computational fluid dynamics Oxford University Press
[2] Mengaldo G, Moxey D, Turner M, Moura RC, Jassim A, Taylor M, Peiro J, Sherwin S, 2021, Industry-Relevant Implicit Large-Eddy Simulation of a High-Performance Road Car via Spectral/hp Element Methods, SIAM Review, 63, p 723-755
[3] Moura RC, Aman M, Peiró J, Sherwin SJ, 2019, Spatial eigenanalysis of spectral/hp continuous Galerkin schemes and their stabilisation via DG-mimicking spectral vanishing viscosity for high Reynolds number flows, Journal of Computational Physics, p 109112-109112,
[4] Moura R, Cassinelli A, da Silva AFC, Burman E, Sherwin S, 2021, Gradient jump penalty stabilisation of spectral/hp element discretisation for under-resolved turbulence simulations, Computer Methods in Applied Mechanics and Engineering, 388, p 1-29
Building 8130, Room 030 / 08:30 am – 09:30 am

Dr. Axel Schaberg
Siemens Energy Global GmbH & Co. KG Muelheim an der Ruhr, Germany
Biography
Education
- Mechanical Engineering Studies at Leibniz University Hannover; Field of Study: Thermal Engineering and Thermal Process Engineering
- Doctorate in Mechanical Engineering at TU Bergakademie Freiberg; Thesis about Heat Storage
Career
- Current position: Head of Project Management Office in Siemens Energy Large Gas Turbine Engineering
- Former positions in Siemens Energy Large Gas Turbine Engineering:
- R&D Project Manager
- Gas Turbine Frame Owner/ Product Manager
- Gas Turbine Component Owner for Auxiliaries
- Head of Cultural Transformation
Promotion
- Doctoral Scholarship by Deutsche Bundesstiftung Umwelt (DBU) / Osnabrück
Building 8130, Room 030 / 08:30 am – 09:30 am

Dr. Jan von Frowein
Director of Innovations Propulsion - MTU Aeroengine AG, Munich
Biography
Jan von Frowein is the Innovative Propulsion Director at MTU Aero Engines. In this role, he is responsible for technology strategy with a special focus on climate-neutral aviation.
Jan has been working at MTU for 18 years, starting as a development engineer in the performance department, where he contributed to the development of the first generation of Geared Turbofan engines for the Airbus A320NEO and various other projects. After transitioning to the technology department, he served as Module Team Lead, coordinating the pre-design of the low-pressure turbine for the next generation of Geared Turbofan engines.
Jan holds Diplomas in Aeronautical and Space Engineering from TU München and École Centrale Paris.
Abstract
Climate neutrality is the big challenge of aviation. With continuous efficiency gains and lower weight and drag CO2 has been significantly reduced over the past. Between 1960 and today the aircraft efficiency in fuel burn and CO2 per passenger kilometer decreased by more than 80%. This trend will continue with next generation aircraft. However, due to the already very high efficiency levels the average annual change will become much smaller in future until reaching a natural physical limit. Current state of science also shows that besides direct CO2 emissions non-CO2 effects have a significant impact on the climate. At the same time there are ongoing discussions in the EU to include non-CO2 effects in the Emission Trading System.
The lecture discusses the impact of future technology improvements and the introduction of sustainable energy carriers on energy and climate cost.
WorkShop
Session B-07 / 10:00am – 12:30pm
Session B-08 / 2:00pm – 4:00pm

Open Test Case Fan ECL5 – CATANA
Sessions: B-07 / B-08
Session Chair: Xavier Ottavy, LMFA / CNRS / Centrale Lyon, France
About
Time Table
- Introduction of the Open Test Case design, fabrication and test facility instrumentation
- Overview of the available experimental dataset and general aerodynamic and aeroelastic results
- Thematic Papers of ECL
- The challenge of aeroelastic measurements in a highly coupled system: comparing Tip-Timing, Strain Gauge and High-Speed Camera measurements of blade vibration during Non-Synchronous Vibration
- Particle Image Velocimetry in the tip region of a UHBR fan
- Thematic Papers of the research community
We encourage the institutions who are already using the geometry to participate to this session, either in form of a peer-reviewed paper following the regular process of ETC, or via a non-reviewed contribution. A collection of the contributions will be integrated in a special issue publication.
Session A-12 / 4:30pm – 6:00pm

TFD 4AC open test case: 4½-stage high-speed axial compressor–geometry and performance data
Institute of Turbomachinery and Fluid Dynamics Leibniz University Hannover
Session: B-11
Session Chair: Dajan Mimic, Leibniz Universität Hannover, Germany
Abstract
For this reason, the Institute of Turbomachinery and Fluid Dynamics presents the 4½-stage high-speed axial compressor open test case, providing the flow path geometries, boundary conditions and performance measurements for a wide range of operating points. Uncertainties in the boundary conditions and performance measurement results will be discussed. Inter-stage traverse measurements will be published in the near future.

4½-stage high-speed axial compressor at the Institute of Turbomachinery and Fluid Dynamics, Leibniz University Hannover
The compressor consists of a fixed inlet guide vane followed by four stages featuring controlled-diffusion aerofoils. The outlet section includes an annular diffuser with diverging hub and casing walls. The compressor achieves a mass-flow rate of 7.93 kg/s and a total-pressure ratio of 2.72 at the aerodynamic design point. Experimental data are available for corrected revolutions speeds of 14.400 min-1 and 17.100 min-1 and for a range of seasonal variations in the ambient temperature and humidity.
Technical Tours
25, 27 March 2027
Session B-6, Session B-12

MTU Maintenance
Münchner Str. 31, 30855 Langenhagen
Headquarter Company Visit
About
This exclusive visit will provide participants with an opportunity to gain deeper insights into one of the leading companies in the industry, observing advanced processes and outstanding engineering solutions firsthand.
Visit Details
Address
MTU Maintenance, Münchner Str. 31, 30855 Langenhagen.
Available Dates
Tuesday, March 25, 2025 (afternoon).
Thursday, March 27, 2025 (afternoon).
Logistical Information:
Transportation will be organized by MTU,
departing from the conference venue.
Total duration of the visit:
approximately 3 hours, including transfer time.
Registration Deadline:
Registration must be completed at least 3 days prior to the selected visit date.
Dress Code for a Safe Guided Tour:
Participants are required to wear sturdy footwear.
More Information about the Sponsor
MTU Aero Engines, ETC16 Sponsor Page
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26 March 2027
Session C-8, Session C-9

Aerzener Maschinenfabrik
Reherweg 28, 31855 Aerzen
Headquarter Company Visit
About
Aerzener Maschinenfabrik GmbH has been a pioneer in compression technology since 1864, developing Europe’s first positive displacement blower in 1868. Over the years, the company has expanded its expertise to include turbo and screw compressors, as well as the first rotary lobe compressor in 2010. Today, AERZEN is recognized as a global leader in high-performance compression solutions, with more than 2,600 employees across 50+ subsidiaries worldwide.
This exclusive visit offers participants a unique opportunity to explore AERZEN’s advanced production facilities and witness cutting-edge engineering in compression technology, where reliability, efficiency, and innovation set new industry standards.
Visit Details
Address
Aerzener Maschinenfabrik, Reherweg 28, 31855 Aerzen
Available Dates
Wednesday, 26/Mar/2025 (afternoon)
Logistical Information:
Transportation will be organized by Company,
departing from the conference venue.
Total duration of the visit:
approximately 4 hours, including transfer time.
Registration Deadline:
day of visit
Price
Free
More Information about the Sponsor:
Aerzener Maschinenfabrik, ETC16 Sponsor Page
Registering
Sign up here:”
Registering
Are you already registered for the conference?
If you want to add one of our tours, first log in to your reserved area, then go to the ‘Edit Your Participant Registration Details‘ section and add the tours you wish to join.
Edit Your Registration
