Reynolds stress models for flows in complex Geometries: Review and application

The emphasis in this work is on the review and application of differential Reynolds Stress Models (RSMs) for complex three-dimensional geometries. First, we review the latest status of Reynolds stress models (RSMs) and the various associated modeling issues. Then, practically relevant implementation issues for selected models are discussed, followed by an assessment of these models for some test cases. Of particular interest are flows involving strong streamline curvature due to geometric complexity or a high degree of swirl. All the computations are compared against the k-e model results to illustrate that even for practical but geoemtrically complex problems the additional expense incurred in employing the RSMs is justified.