Industrial Prediction of Jet-Flap Interaction Noise with Advanced Hybrid RANS-LES Methods

Improvements to an industrial process for the simulation of jet-flap interaction noise are evaluated for a single-stream jet and a coaxial jet installed under a wing and flap. Prediction of the strong installation effect agrees well with measurements in a blind comparison. Alongside an advanced DES model with “grey-area” improvements, the importance of software infrastructure aspects such as meshing, numerics and process automation is demonstrated.