Turbulent jet simulation using high-order DG methods for aeroacoustics analysis
Fluid Dynamics
2017-05-25 v1 Classical Physics
Abstract
In this work, a high-order discontinuous Galerkin (DG) method is used to perform a large-eddy simulation (LES) of a subsonic isothermal jet at high Reynolds number Re D = 10^6 on a fully un-structured mesh. Its radiated acoustic field is computed using the Ffowcs Williams and Hawkings formulation. In order to assess the accuracy of the DG method, the simulation results are compared to experimental measurements and a reference simulation based on a finite volume method. The comparisons are made on the flow quantities (mean, rms and spectra) and pressure far field (rms and spectra).
Keywords
Cite
@article{arxiv.1705.08723,
title = {Turbulent jet simulation using high-order DG methods for aeroacoustics analysis},
author = {Mathieu Lorteau and Marta De La Llave Plata and Vincent Couaillier},
journal= {arXiv preprint arXiv:1705.08723},
year = {2017}
}