EARSM finite element solver for the study of turbulent 3-D compressible separated flows

摘要

A 3-D finite element solver, based on a semi-implicit formulation, that uses an algebraic Reynolds stress turbulence closure is presented. This solver aims to predict separated flow field behavior that typically appears in aerospace applications. In particular, analysis of control device efficiency and base flow/plume interaction of rocket-like configurations are the driving subjects behind this work. Concerning the organization of the paper, a limited review of Reynolds stress models is carried out in the introduction. Then, the numerical algorithm is described and details of the validation campaign are provided. Finally, an application case is presented that deals with the numerical re-building of some of the base flow/plume interaction experiments that have been carried out in the context of the ESA program: FESTIP technology developments in aerothermodynamics for reusable launch vehicles.