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Industrial application of RANS modelling: capabilities and needs

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This article focuses on the current capabilities of Reynolds-Averaged Navier-Stokes (RANS) turbulence modelling and its application to industrial flows. The experiences discussed here are the culmination of over 15 years of commercial application of the Galerkin/Least-Squares Finite Element Method and RANS turbulence modelling approach. The objective of this article is to provide a brief review of turbulence modelling, then illustrate how industrial users are successfully leveraging RANS techniques in production environments. Applications of increasing complexity involving adverse pressure gradients, separation and complex 3-D systems are presented to illustrate the strengths of RANS and unsteady RANS (URANS) modelling. Results are also presented to draw attention to some of the limitations of RANS technology for industrial applications of specific interest. Finally, motivation for continuing research in the field of RANS modelling is provided.

Keywords: AcuSolve; Galerkin/Least-Squares; Spalart-Allmaras RANS model; adverse-pressure gradient; finite element; industrial turbulent flows; massive separation; transition

Document Type: Research Article


Affiliations: ACUSIM Software Inc., Mountain View, CA, USA

Publication date: 2009-04-01

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