Some Recent Developments in Turbulence Closure Modeling

• Paul A. Durbin ^[1]
  1. [1] Iowa State University

     Iowa State University

     Township of Franklin, Estados Unidos

     
• Localización: Annual review of fluid mechanics, ISSN 0066-4189, Nº. 50, 2018, págs. 77-103
• Idioma: inglés
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• Resumen

  • Turbulence closure models are central to a good deal of applied computational fluid dynamical analysis. Closure modeling endures as a productive area of research. This review covers recent developments in elliptic relaxation and elliptic blending models, unified rotation and curvature corrections, transition prediction, hybrid simulation, and data-driven methods. The focus is on closure models in which transport equations are solved for scalar variables, such as the turbulent kinetic energy, a timescale, or a measure of anisotropy. Algebraic constitutive representations are reviewed for their role in relating scalar closures to the Reynolds stress tensor. Seamless and nonzonal methods, which invoke a single closure model, are reviewed, especially detached eddy simulation (DES) and adaptive DES. Other topics surveyed include data-driven modeling and intermittency and laminar fluctuation models for transition prediction. The review concludes with an outlook.