2017/12/21 by J. P. Panda, Panda, J. P., Hari Warrior +2
Engineering · Environmental Science · Physics and Astronomy · #Computational Fluid Dynamics and Aerodynamics #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Fluid Dynamics and Turbulent Flows #Wind and Air Flow Studies #physics.flu-dyn
paper · pdf · doi:10.48550/arxiv.1712.08005
arxiv created 2017/12/21 · openalex publication_date 2017/12/21 · arxiv updated 2017/12/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Accurate and robust models for the pressure strain correlation are an essential component for the success of Reynolds Stress Models in turbulent flow simulations. However replicating the non-local action of pressure using only local tensors places a large limitation on potential model performance. In this paper we outline an approach that extends the tensor basis used for pressure strain correlation modeling to formulate models with improved precision and robustness. This set of additional tensors is analyzed and justified based on physics based arguments and analysis of simulation data. Using these tensors models for the rapid and slow pressure strain correlation are developed. The resulting complete pressure strain correlation model is tested for a wide variety of turbulent flows, while being contrasted against the predictions of established models. It is shown that the new model provides significant improvement in prediction accuracy.