Integrated Boundary-Layer Transition Prediction

CFD Vision 2030 has identified the prediction of viscous turbulent flows with transition and separation as a critical pacing item for CFD simulation capability. To address the requirements for transition modeling integrated with CFD, NASA's Langley Research Center has adopted a dual strategy that seeks to enhance the robustness of automated stability computations coupled with RANS solvers and to improve the accuracy and range of applicability of transition models based on auxiliary transport equations. This presentation outlines the implementation and evaluation of both approaches in NASA flow solvers.