Search

This issue of the Aerospace Lab review is dedicated to Computational Fluid Dynamics. Recent advances allowing improvements in terms of performance prediction and design capabilities for aircraft and propulsion systems applications are described. A large panel of applications illustrate the state of the art in both domains thanks to the "elsA" and "CEDRE" CFD platforms that are considered as the reference by the French and the European aerospace industry, and by the research community., Journal Aerospace Lab, Issue 2, March 2011; ISSN: 2107-6596

This paper describes the results obtained during the JEDI project carried out in cooperation between ONERA and Airbus. The aim of these studies was first to acquire a very complete database of a modern-type engine jet installation under a swept wing in various transonic flow conditions. Interactions between the engine jet, the pylon and the wing were studied thanks to many “advanced” measurement techniques. In parallel, accurate RANS simulations were carried out from simple ones with the Spalart-Allmaras model to more complex ones like the DRSM-SSG turbulence model. In the end, Zonal-DES simulations were performed too to compare different simulation techniques. All numerical results are accurately validated thanks to the experimental database acquired in parallel. This complete and complex study of modern civil aircraft engine installation allowed many upgrades in our understanding and simulation methods to be obtained. Furthermore, a setup for engine jet installation studies has been validated for possible future works in the S3Ch transonic research wind-tunnel. The main conclusions are summed up in this paper.