Modelling of jet noise: a perspective from large-eddy simulations

Post - processing of large - eddy simulations for jet noise predictions

Despite almost 60 years of active research on jet noise, the noise generated by expulsion of hot gases at the exhaust of aircraft engines remains an important part of the total aircraft noise. This is particularly true in the case of supersonic aircrafts, where the high speed of the exhaust gases yields extremely high noise. In the framework of the development of future civil supersonic aircraf...

Large eddy simulation of a plane jet

Hydromagnetic energy spectra from large eddy simulations

Direct and large eddy simulations of hydrodynamic and hydromagnetic turbulence have been performed in an attempt to isolate artifacts from real and possibly asymptotic features in the energy spectra. It is shown that in a hydrodynamic turbulence simulation with a Smagorinsky subgrid scale model using 512 meshpoints two important features of the 4096 simulation on the Earth simulator (Kaneda et ...

Modelling artificial sea salt emission in large eddy simulations.

We study the dispersion of sea salt particles from artificially injected sea spray at a cloud-resolving scale. Understanding of how different aerosol processes affect particle dispersion is crucial when designing emission sources for marine cloud brightening. Compared with previous studies, we include for the first time an explicit treatment of aerosol water, which takes into account condensati...

effect of sub-grid scales on large eddy simulation of particle deposition in a turbulent channel flow

چکیده ندارد.