Automatic Transition Prediction in a Navier–Stokes Solver Using Linear Stability Theory

A structured Reynolds-averaged Navier–Stokes solver is directly coupled to a linear stability theory (LST) include the effect of laminar–turbulent transition in flow simulations. The flowfield variables are used both find streamlines along which can be predicted and provide LST code with required boundary-layer profiles. Instabilities included analysis Tollmien–Schlichting crossflow nature relevant high-Reynolds-number flows low turbulence environments. coupling fully automated therefore efficiently design geometries external flows. Technical University Braunschweig’s sickle wing spanwise-varying natural laminar version Common Research Model simulated under various conditions. Applications these three-dimensional test cases showcase capability method model real physics. Advantages challenges approach regard future endeavors discussed.