Linear to turbulent Görtler instability transition

We present results from a highly resolved large-eddy simulation of freely developing Blasius profile over concave boundary in large spanwise domain. Due to the initial Reynolds and Görtler numbers (Reθ,0 = 1175, Gθ,0 75), we observe onset two dominant wavelengths: first dominating linear/transition region, λ1, second turbulent λ2. Extending previous linear stability analysis (LSA) higher non-dimensional wavenumbers, both wavelengths instability correspond predictions LSA, latter comparable laminar theory by replacing kinematic viscosity with definition number. The predicted spatial modes compare well computed profiles for λ1 skin friction coefficient Cf is found heterogeneous direction according emerging λ2 instability. report smooth increase theoretical layer those flat plate. values only slightly overshoot these domain existence wavelength λ2, very different that reported at lower numbers.