LESFOIL: Large Eddy Simulation of Flow Around a High Lift Airfoil: Results of the Project LESFOIL Supported by the European Union 1998 - 2001

by Lars Davidson (Editor), Davor Cokljat (Editor), Jochen Fröhlich (Editor), Michael A. Leschziner (Editor), Chris Mellen (Editor)

Overview

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 influential 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.

Product Details

ISBN-13:	9783540005339
Publisher:	Springer Berlin Heidelberg
Publication date:	07/15/2003
Series:	Notes on Numerical Fluid Mechanics and Multidisciplinary Design , #83
Edition description:	2003
Pages:	248
Product dimensions:	6.10(w) x 9.25(h) x 0.36(d)

Table of Contents

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.