LESFOIL: Large Eddy Simulation of Flow Around a High Lift Airfoil

Results of the Project LESFOIL Supported by the European Union 1998 - 2001
2003
ISBN: 978-3-540-00533-9
Verlag: Springer Berlin Heidelberg

Buch, Englisch, Band 83, 248 Seiten, Format (B × H): 160 mm x 241 mm, Gewicht: 1210 g

Reihe: Notes on Numerical Fluid Mechanics and Multidisciplinary Design

Large Eddy Simulation is a relatively new and still evolving computatio­ nal strategy for predicting turbulent flows. It is now widely used in research to elucidate fundamental interactions in physics of turbulence, to predict phe­ nomena which are closely linked to the unsteady features of turbulence and to create data bases against which statistical closure models can be asses­ sed. However, its applicability to complex industrial flows, to which statisti­ cal models are applied routinely, has not been established with any degree of confidence. There is, in particular, a question mark against the prospect of LES becoming an economically tenable alternative to Reynolds-averaged N avier-Stokes methods at practically high Reynolds numbers and in complex geometries. Aerospace flows pose particularly challenging problems to LES, because of the high Reynolds numbers involved, the need to resolve accura­ tely small-scale features in the thin and often transitional boundary layers developing on aerodynamic surfaces. When the flow also contains a separated region - due to high incidence, say - the range and disparity of the influen­ tial scales to be resolved is enormous, and this substantially aggravates the problems of resolution and cost. It is just this combination of circumstances that has been at the heart of the project LESFOIL to which this book is devoted. The project combined the efforts, resources and expertise of 9 partner organisations, 4 universities, 3 industrial companies and 2 research institu­ tes.

Zielgruppe

Professional/practitioner

Autoren/Hrsg.

Davidson, Lars

Cokljat, Davor

Rodi, Wolfgang

Fröhlich, Jochen

Leschziner, Michael A.

Mellen, Chris

Fachgebiete

• Technische Wissenschaften Technik Allgemein Computeranwendungen in der Technik
• Technische Wissenschaften Verkehrstechnik | Transportgewerbe Luft- und Raumfahrttechnik, Luftverkehr
• Wirtschaftswissenschaften Wirtschaftssektoren & Branchen Fertigungsindustrie Luftfahrtindustrie
• Naturwissenschaften Physik Mechanik Kontinuumsmechanik, Strömungslehre
• Mathematik | Informatik EDV | Informatik Angewandte Informatik Computeranwendungen in Wissenschaft & Technologie
• Technische Wissenschaften Maschinenbau | Werkstoffkunde Technische Mechanik | Werkstoffkunde Elastizität, Plastizität, Rheologie
• Technische Wissenschaften Technik Allgemein Mathematik für Ingenieure
• Naturwissenschaften Physik Angewandte Physik Statistische Physik, Dynamische Systeme
• Technische Wissenschaften Maschinenbau | Werkstoffkunde Technische Mechanik | Werkstoffkunde Strömungslehre
• Mathematik | Informatik EDV | Informatik Professionelle Anwendung Computer-Aided Design (CAD)

Inhaltsverzeichnis

I. Introduction.- II. Preparatory Work.- 1 Task 1: Subgrid models.- 2 Task 2: Near-wall models.- 3 Task 4: Numerical methods.- III. The Airfoil Investigations.- 4 Task 5: Airfoil Computations.- IV. Lessons Learned.- 5 Synthesis of the Airfoil Flow Simulations.- V. Conclusions and Outlook.- VI. References.- VII. Addresses of Partners.