Turbulence remains one of the outstanding problems of classical physics, and one that has challenged physicists and engineers alike for decades, even centuries. The fusion of classical approaches and tools of the modern day – theoretical analysis of the Navier-Stokes equations, state-of-the-art experimental observations, data-driven methods and machine learning – has led to substantial progress […]
Particle tracking in turbulent jets is essential for an accurate Lagrangian understanding of jet flows. While parallel algorithms and numerical schemes to compute flow fields can be scaled to a large number of computing processes, the same is not necessarily true for particle tracking. This thesis presents an analysis of the parallel efficiency of particle […]
Acoustic tones in the near field of a Mach 0.9, Reynolds number 10^6 round jet are investigated using large-eddy simulations (LES) performed with the explicit filtering LES (EFLES) approach. The jet is issued into the ambient through a cylindrical nozzle. Pressure spectra at observer locations in the upstream direction reveal the presence of tones which […]
