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Cooperative Action to Apply Particle Image Velocimetry to Problems of Industrial Interest

Objective



BE95-1120 A cooperative Action to apply Particle Image Velocimetry to problems of Industrial Interest - EUROPIV

Considerable progress has been made, during the last twenty years in the field of aerodynarnics. Although many problems are still to be solved in turbulent flows, the mean flow characteristics can be quite accurately defined by the combined use of computer codes and wind tunnel experiments. To improve their aircraft and engines efficiency, the manufacturers have to look more and more to the 3D, unsteady aspects of the flow in some specific subdomain or in particular flight or working configurations. Complex viscous flows, separated flows, coherent structures in turbulence and transition phenomena become of primary importance in such situations. In these fields, computer simulations are still limited and much understanding has to be gained from experiments, both on the design and on the code validation point of view. An experimental approach to such flows and phenomena needs non-intrusive measurement methods, able to give a quantitative description of the instantaneous flow characteristics in a field rather than at one single point. Particle Image Velocimetry (PIY) has been developed for that purpose and gives access to the most primary variable: the velocity field. This method has been demonstrated at a laboratory scale in several teams in Europe and in the USA.
The aim of the present project is first to reinforce the knowledge of the method by taking advantage of the complementary research and development work performed by the participating teams. This is made possible by the extension of an existing activity in the frame of GARTEUR, to a broader European cooperation. The second objective is to prepare the future by studying the possible extensions of the present state of the art to access to the full three components of the instantaneous velocity field in a plane. The final and most crucial objective of the proposal is to demonstrate the applicability of the method to problems of industrial interest. This will be done at full scale for aerodynamic testing in industrial wind tunnels and at laboratory scale for turbomachinery.

In order to achieve the targeted objectives, the research program has been divided into five tasks:
- a critical evaluation of the existing know-how by use of a travelling test experiment and a network accessible database,
- a further development of the method, on some specific aspects (large flow seeding and video recording), in order to increase the efficiency and quality of the measurements,
- a study of ways to extend the method to measure the full three components of the instantaneous velocity field in a plane through stereoscopic and holographic experiments in both aerodynamics and turbomachinary situations,
- a full scale test in an industrial wind tunnel and a comparison of the results with numerical simulations,
- the exploitation of the results obtained and the preparation of a thematic network proposal.

The completion in a two years program of these five tasks should lead to the formation of a strong European community in PIV which will be able to perform high quality velocity field measurements in flows of industrial interest. It should also allow large cost savings by the way that all the partners involved will not have to develop and test all the possible solutions available for performing PIV measurements. For this purpose, the partnership structure has been divided in order to cover most of the solutions under study worldwide. The know how developed in the frame of the EUROPIV project will be usable and used immediately in other European programs like ENIFAIR or APIAN. It will be used also by the seven partners of AERA in their large facilities.

Coordinator

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
Address
Boulevard Paul Langevin, Cite Scientifique
59655 Villeneuve D'ascq
France

Participants (19)

Centro Italiano Ricerche Aerospaziali ScpA
Italy
Address
Via Maiorise
81043 Capua
Daimler-Benz Aerospace Airbus GmbH
Germany
Address
1-5,Hünefeldstrasse
28183 Bremen
Dassault Aviation SA
France
Address
78 Quai Marcel Dassault
92552 Saint-cloud
Defence Evaluation and Research Agency (DERA)
United Kingdom
Address
Pyestock
GU14 0LS Farnborough
FFA - The Aeronautical Research Institute of Sweden
Sweden
Address
14,Ranhammarsvagen
161 11 Bromma
GERMAN AEROSPACE CENTRE
Germany
Address
Bunsenstraße 10
37073 Goettingen
Institut Franco-Allemand de Recherches de Saint-Louis
France
Address
5,Rue Du Générale Cassougnou
68301 Saint-louis
Instituto Nacional de Técnica Aeroespacial 'Esteban Terradas'
Spain
Address
Km 4,Carretera De Ajalvir
28850 Madrid
Nationaal Lucht- en Ruimtevaart Laboratorium
Netherlands
Address
2,Anthony Fokkerweg
1006 BM Amsterdam
OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES
France
Address
Boulevard Paul Painlevé 5
59045 Lille
SIREHNA - SOCIÉTÉ D'INGÉNIÉRIE, DE RECHERCHES ET D'ETUDES EN HYDRODYNAMIQUE NAVALE SA
France
Address
Rue De La Noe 1, Immeuble Atlanpole
44321 Nantes
Technische Universiteit Delft
Netherlands
Address
145,Rotterdamseweg
2628 AL Delft
UNIVERSITE JEAN MONNET - SAINT-ETIENNE
France
Address
23,Rue Du Docteur Paul Michelon 23
42023 Saint-etienne
UNIVERSITY OF OLDENBURG
Germany
Address
Carl Von Ossietzky Stra¯e 9-11
26111 Oldenburg
UNIVERSITY OF ROME "LA SAPIENZA"
Italy
Address
Via Eudossiana 18
00184 Roma
Universidad Carlos III de Madrid
Spain
Address
15,Butarque 15
28911 Madrid
University of Warwick
United Kingdom
Address
Gibbet Hill Road Warwick Science Park
CV4 7AL Coventry
Université de Rouen - Haute Normandie
France
Address
Place Emile Blondel
76821 Mont-saint-aignan
VON KARMAN INSTITUTE FOR FLUID DYNAMICS
Belgium
Address
72,Chaussee De Waterloo 72
1640 Rhode-st-genese