Collaborative projects

H2020 SPLEEN Project coordinated by the von Karman Institute

H2020 Spleen

Secondary and Leakage Flow Effects in High-SPeed Low-PrEssurE TurbiNes

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 820883.

SPLEEN investigates the aerodynamics of the next-generation high-speed Low Pressure Turbines. The project specifically focuses on the characterization of the secondary flow structures and the interaction of cavity purge and leakage flows with the mainstream. All these flows are of high technological interest and their accurate consideration is crucial for the development of compact high-speed turbines with high efficiencies.

The SPLEEN project will mark a fundamental contribution to the progress of high-speed low-pressure turbines by delivering unique experimental databases, essential to characterize the time-resolved 3D turbine flow, and new critical knowledge to mature the design of 3D technological effects.

SPLEEN research project aims at:

-  Characterizing secondary flow effects in a large-scale high-speed linear cascade at engine-representative Mach and Reynolds numbers by investigating different cavity-airfoil configurations.

-  Proposing, designing and testing an innovative technology concept that targets a reduction of the aerodynamic losses induced by the interaction of the secondary-air flow with the mainstream. 

-  Heavily instrumenting and installing a one-and-a-half turbine stage in a transonic rotating turbine rig. The turbine stage tests will allow characterizing the 3D unsteady flow field and the interactions between mainstream and cavity flows, in an engine-scaled environment under realistic flow conditions.


Project start date: November 1st, 2018

Duration: 40 months

Estimated project cost: EUR 2,000,000

Project Coordinator: von Karman Institute for Fluid Dynamics


VKI is part of the EU Nathena Project


N E W  A D D I T I V E  M A N U F A C T U R I N G  H E A T  E X C H A N G E R  F O R  A E R O N A U T I C


Logo NathenaNATHENA project is focused on the development of a new kind of heat exchanger for civil aircraft using additive manufacturing.

With a strong partnership including AddUp Solutions for the development of the additive process, Sogeclair Aerospace for the mechanical conception and Temisth for the heat exchanger design, the von Karman Institute is involved in the experimental characterization.

NATHENA project ambitions to create two optimized heat exchangers by increasing their compactness, their performances and robustness. Additive manufacturing give us the possibility to reduce the number of part to be welded or brazed and give a special global shape of the component to fit to the aircraft as well as possible.
Different test-benches are developed at the VKI to determine the aerothermal performance of the optimized compact heat exchangers.

Liebherr Aerospace, topic manager of this project, support us for the conception. This project founded by European Union (Clean Sky 2) at the level of 1.5M€ will last 4 years. It will lead to a proof of concept of a scale 1 heat exchanger tested with laboratory conditions.
For more information, please, see the link below:


Coordinator and Project Leader





Institut von Karman (IVKDF)

 Nathena Consortium

EU FlagThis project has received funding from the European Union’s Horizon 2020 Research and Innovation program under Grant Agreement no. 785520


VKI is part of the EU Chopin Project

D E V E L O P M E N T  O F  C O N T A M I N A T I O N  M I T I G A T I O N  C O A T I N G  T O  R E D U C E  A I R C R A F T  C O 2  C O N S U M P T I O N

Logo Chopin


Focused on reducing fuel consumption, the aircraft industry is looking for solutions against insect contamination to keep the high efficiency of laminar boundary layers as drag reduction technology. Convinced that efficient and durable anti-adhesion surface treatment is the solution, the EU Cleansky CHOPIN project has been launched to tackle the problem of aircraft fuel consumption due to insect contamination.



Technologies involved

Development of highly durable omniphobic coatings which can be applied to micro-perforated surfaces typically used for drag reduction. The insect contamination and cleaning behaviour of the best coatings will be demonstrated during simulation testing and under realistic conditions. Tests under real conditions with drones to evaluate the insect impact and contamination behaviour of typical A/C leading edges under realistic A/C environment during take-off, landing and flight.

Project info

Project start date: March 1st 2018
Duration: 36 months
Total cost: EUR 1 529 893,75
EU grant: EUR 1 499 268,75
Coordination: Materia Nova
Topic Management: Airbus
Partners: Cidetec, Norut, VKI, Berthier

Logo Partners

More information

This email address is being protected from spambots. You need JavaScript enabled to view it.
Phone +32 65 554902

This project has received funding from the European Union’s Horizon 2020 Research and Innovation program under Grant Agreement no. 785484


Stratospheric Flying Opportunities for High-Speed Propulsion Concepts (STRATOFLY)

Stratofly LogoEU LogoThe von Karman Institute is deputy coordinator of a new Horizon2020 project managed by Politecnico di Torino. This 4M€ EU project started on 1 June 2018 and will end on 30 November 2020.

The STRATOFLY project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 769246.


STRATOFLY studies the feasibility of high-speed passenger stratospheric flight. Technological, environmental and economic factors, that allow the sustainability of new air space’s exploitation, are taken into account, drastically reducing transfer time, emissions and noise, and guaranteeing the required safety levels. In addition, STRATOFLY represents the first step towards future reusable launchers.

STRATOFLY main objectives

- To refine the design and the concept of operations of the LAPCAT-­‐II MR2.4, that has been selected as reference vehicle.

- To build up on the heritage of the past EU projects to reach the ambitious goal of TRL6 by 2035 for the vehicle concept.

- STRATOFLY hypersonic vehicle will fly at M8 above 30 km of altitude, performing an antipodal civil passenger transport mission.

- The crucial technologies of STRATOFLY vehicle may represent a step forward to reach the goal of future reusable space transportation systems.

Lapcat_MR2 hypersonic cruiser concept
LAPCAT-MR2 Hypersonic Cruiser Concept
Courtesy: European Space Agency

Description of the project

The stratosphere is the atmosphere layer higher than the breathable troposphere and its extension goes up to an altitude of 50 Km. The exploitation of this space could become necessary because the number of passengers transported by airplane could have a six-fold increase by 2050.

STRATOFLY research project aims:

- To drastically decrease the transfer time of long range civil flights

- To identify new high-speed (hypersonic) trajectories in unexploited air spaces (stratosphere)

- To decrease noise and emissions, evaluating the climate impact and guaranteeing at the same time required safety standards for passenger transport

- To evaluate the economic sustainability of the future operability of hypersonic vehicles

- To increase the maturity level of enabling technologies for future reusable launchers

The research topic is highly multidisciplinary and combines technological and operative issues. Crucial technological issues for the success of the hypersonic vehicle are the integration of innovative propulsion systems, unconventional structural configurations and systems for the thermal and energy management. Fundamental operative issues are the reduction of emissions, noise and the sustainability of unexplored trajectories, guaranteeing the safety levels necessary for passenger transport.

STRATOFLY thus includes non-technological issues that are of utmost importance for the future of civil passenger transport in the stratosphere: the life cycle costs estimation of the vehicle, the market analysis, human factors related to the public consensus, safety and airworthiness regulations. STRATOFLY project has a rational and comprehensive structure, consisting of two design spaces, Technology and Operational, mutually interacting one with the other.

Positive example of how to deal with complexity and multidisciplinary domains

Positive example of how to deal with complexity and multidisciplinary domains
Courtesy: Politecnico di Torino, Italy


- Politecnico di Torino, Italy - Contact: Prof. Nicole Viola, Associate Professor, Project Coordinator (This email address is being protected from spambots. You need JavaScript enabled to view it.)

National and international partners

- von Karman Institute for Fluid Dynamics (VKI), Belgium - Contact: Dr. Bayindir Saracoglu, Research Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it., Phone: +32 2 359 96 53)

- Stichting Nationaal Lucht- En Ruimtevaartlaboratorium, The Nederlands

- Centro Italiano Ricerche Aerospaziali Scpa, Italy

- Deutsches Zentrum Fuer Luft - Und Raumfahrt Ev, Germany

- Office National d'Etudes et de Recherches Aerospatiales, France

- Centre National de La Recherche Scientifique Cnrs, France

- Totalforsvarets Forskningsinstitut, Sweden

- Technische Universitat Hamburg-Harburg, Germany

- Fundacion de la Ingenieria Civil De Galicia, Spain

Kick-Off Meeting Stratofly at VKI

First kick-off meeting at VKI in June 2018


Politecnico di Torino von Karman Institute for Fluid Dynamics Stichting Nationaal Lucht- En Ruimtevaartlaboratorium Centro Italiano Ricerche Aerospaziali Scpa Deutsches Zentrum Fuer Luft - Und Raumfahrt Ev
Office National d'Etudes et de Recherches Aerospatiales Centre National de La Recherche Scientifique Cnrs Aerospatiales Totalforsvarets Forskningsinstitut Technische Universitat Hamburg-Harburg Fundacion de la Ingenieria Civil De Galicia

 The text above has been partially extracted from the website of Politecnico di Torino :

Fluids & C°

Jean Muylaert, Director of the von Karman Institute for Fluid Dynamics (VKI) and Vincent Soumoy, CEO of Fluids & C° are pleased to announce their recent collaboration to promote VKI in North America. Fluids & C° will namely help North American companies to rise research or validation projects with the Institute.

About Fluids & C°
Fluids & C° was founded on the idea of helping North American companies in their simulation, namely in the fluid domain. Based in Montreal, they are providing services and distributing software. The team is made up entirely of specialists with more than 25 years of experience.

Franco-Belgian nationality physicist, specialized in fluid mechanics, Diploma Course of the von Karman Institute in 1987, Vincent worked since more than 25 years in the simulation domain, namely in CFD




COOLFluiD (Computational Object-Oriented Libraries for Fluid Dynamics) is a component- based framework for scientific high-performance computing, CFD and multi-physics applications, originally developed at the von Karman Institute for Fluid Dynamics.

COOLFluiD is a open end collaborative platform providing a powerful set of tools for:

  • solving toy or complex applications with existing numerical solvers;
  • building totally new or customized models/solvers with arbitrary data-structures;
  • easily defining reusable components (e.g. algorithms, models, BCs, wrappers);
  • building virtual prototypes and easily test new algorithms or models;
  • interfacing or coupling other libraries/solvers to tackle more complex problems;
  • large scale simulations.

The COOLFluiD platform is an open source and the code is downloadable from Github.


Skywin est le pôle de compétitivité labellisé par la Région wallonne pour les secteurs de l'aéronautique et du spatial.


The TATEF2 aim is to create an experimental database to be used for design tools validation, in order to evaluate the unsteady effects of the inlet swirls, of the enhanced hot spots and of the rotor platform cooling in the high pressure stages of gas turbines with strong shock waves and a new architecture of low pressure vane which combines structural struts.

The Industrial Partners will validate and assess their design tools against the experimental results.


LAPCAT II is a logical follow-up of the previous, co-funded EC-projec LAPCAT whose objective was to reduce the duration of antipodal flights (that is, flights between two diametrically opposite points on the globe) to less than two to four hours. Among the several vehicles studied, only two novel concepts – for Mach five and Mach eight cruise flight – are retained in the new program. The project, co-funded by the European Commission under the theme of air transportation, will last for four years and involves 16 partners representing six European member states.

PowerMEMS Project

The powerMEMS, Microsystems for power generation, project aims the development of a technology for replacing rechargeable batteries in a wide range of applications. The proposed technology is based on ranging from a few µW till the mW range and from the other side fuel based systems ranging from a few W to ultimately a kW. The final workshop was held in September 2008.


The Sixth Framework Programme (FP6) is designed to support a wide range of participants: from universities, through public authorities to small enterprises and researchers in developing countries.

  • AETHER : The AETHER project is a collaborative research and training network funded by the 6th Framework Programme of the European Commission in the frame of the Marie Curie actions. The project represents an initiative to strengthen the fundamental scientific work in the multi-disciplinary engineering field of aero- and thermo-acoustical coupling in energy conversion processes.


The Seventh Framework Programme (FP7) is designed to support a wide range of participants: from universities, through public authorities to small enterprises and researchers in developing countries.

IWT projects

This projects listed here are financed by the IWT (Institute for the Promotion of Innovation by Science and Technology in Flanders).

  • MuTEch: The MuTEch project aims at providing new generic numerical and experimental tools to study heat and mass transfer, gas evolution and fluid turbulence in electrochemical systems of practical interest. This project is financed by the IWT (Institute for the Promotion of Innovation by Science and Technology in Flanders). It involves four academic and two industrial partners.
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