2020/05/31 by Mustafa Aggul, Aggul, Mustafa
Engineering · Physics and Astronomy · #Computational Fluid Dynamics and Aerodynamics #FOS: Mathematics #Fluid Dynamics and Turbulent Flows #Model Reduction and Neural Networks #Numerical Analysis (math.NA)
paper · pdf · doi:10.48550/arxiv.2006.00502
openalex publication_date 2020/05/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
An alternative first step approximation based on subgrid artificial viscosity\nmodeling (SAV) is proposed for defect-deferred correction method (DDC) for\nincompresible Navier-Stokes equation at high Reynolds number. This new approach\nnot only preserves all qualifications of the conventional artificial viscosity\n(AV) based DDC, such as unconditional stability, high order of accuracy and so\non, it has also shown its superiority over choosing AV approximation in the\npredictor step. Both theory and computational results presented in this paper\nillustrate that this alternative approach indeed increases the efficiency of\nthe DDC method.\n