Numerical study of oscillating boundary layer flow over a flat plate using k-k_L-ω turbulence model

摘要

Oscillating boundary layer flow over an infinite flat plate at rest was simulated using the k-k_L-ω turbulence model for a Reynolds number range of 32≦Reδ ≦ 10,000 ranging from fully laminar flow to fully turbulent flow. The k-k_L-ω model was validated by comparing the predictions with LES results and experimental results for intermittently turbulent and fully turbulent flow regimes. The good agreement obtained between the k-k_L-ω model prediction with the experimental and LES results indicate that the k-k_L-ω model is able to accurately simulate transient intermittently turbulent flow and as well as accurately predict the onset of turbulence for such oscillatory flows.