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European low speed aircraft model at high Reynolds II

PROJECTS
Funding
European
European Union
Duration
-
Status
Complete
Geo-spatial type
Other
Total project cost
€1 383 000
EU Contribution
€968 100
Project website
Project Acronym
EULOSAM II
STRIA Roadmaps
Vehicle design and manufacturing (VDM)
Transport mode
Airborne icon
Transport policies
Other specified
Transport sectors
Passenger transport,
Freight transport

Overview

Call for proposal
H2020-CS2-CFP07-2017-02
Link to CORDIS
Background & Policy context

In laminar flow investigations, several parameters related to manufacturing quality of the aircraft wind tunnel model have to be considered since they can strongly affect the laminar-turbulent transition location. Model shape, steps and gaps, waviness and surface roughness of the model, are key parameters for the quality of laminar flow investigation.

Even if this effect is not so amply described in literature where few empirical and inaccurate correlations between the roughness height and the transition position can be found, experimental results have shown that distributed roughness strongly affects the laminar-turbulent transition. This phenomenon can be managed through a very good mechanical design able to avoid possible step and gap coming from the integration of different parts composing the model and taking care, in the manufacturing phase, of the waviness and of the surface refinement, both being challenging tasks. Last, but not least, the number of pressure sensors and their integration in the leading region (necessary to correctly capture the stagnation region) requires special and innovative solutions to avoid laminar flow contamination.

Objectives

Fully in line with JTI-CS2-2017-CfP07-AIR-01-30, the overall objective of the project is to support the development and assessment of natural laminar aircraft integrating innovative aerodynamic control surfaces, and high lift technologies. The EULOSAM II project focuses on the modification and completion of a WT-model that allows analysing of the aerodynamic performance of innovative control surfaces and high-lift devices. Model main size is roughly 2.25 m in span for an area of around 1.2 m^2 with the Horizontal Tail Plane (HTP) of 0.8 m in span for an area of 0.26 m^2. The WT model has the high aspect ratio of around 11 and a low sweep angle of 20°.

Funding

Parent Programmes
Institution Type
Public institution
Institution Name
European Commission
Type of funding
Public (EU)
Specific funding programme
H2020-EU.3.4.5.4.
Other Programme
JTI-CS2-2017-CfP07-AIR-01-30 Finalize and improve the manufacturing of the model of a laminar wing configuration bizjet (LSBJ)

Partners

Lead Organisation
Organisation
Nhoe - Societa' A Responsabilita' Limitata
Address
VIA SANGRO 5, 00040 POMEZIA, Italy
Organisation website
EU Contribution
€189 875
Partner Organisations
Organisation
Ibk Ingenieurbuero Dr Kretzschmar
Address
Rehdorfer Str. 4, 90431 NUREMBERG, Germany
Organisation website
EU Contribution
€170 100
Organisation
Industria Lavorazioni Meccaniche Srl
Address
VIA ANGELA VACCHI 20/26, 04011 APRILLIA LT, Italy
Organisation website
EU Contribution
€608 125

Technologies

Technology Theme
Aircraft design and manufacturing
Technology
Active flow control and interrelations with Reynolds stress
Development phase
Demonstration/prototyping/Pilot Production

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