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MULTI BLOCK MESH GENERATION FOR COMPUTATIONAL FLUID DYNAMICS

Objective

Computational Fluid Dynamics (CFD) is now well established as an integral part of the aerodynamic design process within the aerospace industry. Computer codes for modelling either simple geometries or flows are now mature and in routine use by aerodynamic engineers. The current thrust of research and development is towards the modelling of complex configurations and flows. This trend places a heavy burden on the ability to generate computational meshes of a consistently high standard. Rapid progress through collaborative research is required if Europe is to retain a competitive edge.

The main objectives of this mesh generation project are therefore 2-fold. Firstly, general purpose grid generation techniques are to be developed for multi-block methods. Several complementary approaches will be explored by the partners. The second major objective is to investigate techniques for improving mesh efficiency and solution accuracy. Mesh embedding can be used to refine blocks locally without a global propagation of unnecessary mesh points. In addition, by allowing the grid to adapt itself dynamically to regions of high error or flow gradient an improved standard of solution can be obtained.
Within the intended scope of the two year project EUROMESH was considered successful by its participants. The project did not provide solutions to all of the questions asked and indeed raised many new issues to be addressed in subsequent projects. However, in addition to making progress within many key areas the project brought together for the first time Europes leading workers in a vital area of CFD technology. The project was conducted in a tremendous spirit of cooperation and the value to all of regular, in depth discussions and reviews cannot be overstated. The project highlighted key deficiencies in the area of mesh adaptation which need to be urgently addressed. In time as Europes aeronautical industry becomes more integrated projects of this form should evolve towards common shared CFD systems.

Funding Scheme

CSC - Cost-sharing contracts
Leaflet | Map data © OpenStreetMap contributors, Credit: EC-GISCO, © EuroGeographics for the administrative boundaries

Coordinator

British Aerospace plc
Address
11 Strand
WC2N 5JT London
United Kingdom

Participants (13)

Aérospatiale Société Nationale Industrielle SA
France
Address
37 Boulevard De Montmorency
75781 Paris
British Aerospace Plc
United Kingdom
Address
Warwick House
GU14 6YU Farnborough
CENTRE EUROPEEN DE RECHERCHE ET DE FORMATION AVANCEE EN CALCUL SCIENTIFIQUE
France
Address
Avenue Gaspard Coriolis 42
31057 Toulouse
Defence Evaluation and Research Agency (DERA)
United Kingdom
Address
Pyestock
GU14 0LS Farnborough
Deutsche Aerospace Airbus GmbH
Germany
Address
Kreetslag 10
21111 Hamburg
EADS - CONSTRUCCIONES AERONAUTICAS S.A.
Spain
Address
Avenida De Aragon 404
Madrid
GERMAN AEROSPACE CENTRE
Germany
Address
Linder Höhe
51147 Koeln
NATIONAL TECHNICAL UNIVERSITY OF ATHENS
Greece
Address
Iroon Polytechnioy 5
15780 Athens
Office National d'Études et de Recherches Aérospatiales (ONERA)
France
Address
29 Avenue De La Division Leclerc
92322 Châtillon
Saab AB
Sweden
Address

581 88 Linköping
Stichting Nationaal Lucht- en Ruimtevaart Laboratorium
Netherlands
Address

8300 AD Emmeloord
Swansea University
United Kingdom
Address
Singleton Park
SA2 8PP Swansea
THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD
United Kingdom
Address
University Offices, Wellington Square
Oxford