Publications

J. A. Insley, U. Paliath, A. Gupta, "Turbulent Mixing Noise from Jet Exhaust Nozzles," Proceedings of the 2011 companion on High Performance Computing Networking, Storage, and Analysis Companion, Seattle, Washington, ACM, 2011, pp. 143-144. Also Preprint ANL/MCS-P1990-1211, December 2011. [pdf]

Understanding the complex turbulent mixing noise sources for jet exhaust nozzles is critical to delivering the next generation of “green” low-noise jet engines. High performance computing resources are used to develop/prove hi-fidelity direct-from-first principles predictions of noise to characterize these hard to measure acoustic sources. A scalable, compressible Large Eddy Simulation (LES) –based Computational Aeroacoustics (CAA) solver is used to study free shear layer noise from jet exhaust nozzles, and boundary layer noise sources from airfoils. Representative wind turbine airfoils are simulated at realistic Reynolds & Mach numbers to mature CAA prediction accuracy. To prove design differentiation capability and hence readiness as an numerical rig ready to accelerate industrial design, the LES/large-scale HPC combination is being proven on a range of jet nozzle configurations.