Suitability of Explicit Algebraic Stress Models for predicting complex three-dimensional flows

Abstract

For the simulation of complex, three-dimensional turbulent flows within the Reynolds- Averaged Navier-Stokes framework, Explicit-Algebraic-Stress-Models (EASM) constitute an appealing alternative to traditional one- or two-equation turbulence models based on a linear stress-strain relationship. Due to the simplicity and numerical efficiency, two-dimensional EASM formulations are preferred over their more complex three-dimensional counterpart. However, three-dimensional EASM formulations use additional, higher order coupling terms which may have the potential to improve the predicted results for cases with three-dimensional mean flow. The aim of this work is to evaluate the performance of EAS..