Parametric investigation of low-dissipation low-dispersion schemes for unstructured flow solvers in large eddy simulation
Paper in proceedings, 2020

A second-order low-dissipation low-dispersion scheme is evaluated for unstructured finite-volume flow solvers. The scheme exploits a higher order central reconstruction of the face fluxes and a matrix dissipation formulation to reduce the dispersive and dissipative numerical errors. The scheme is applied using the M-Edge CFD solver for compressible flows for low-speed scale-resolving simulations. The scheme is shown to be a significant improvement to a conventional central scheme used for RANS simulations by accurately predicting reference DNS data for the plane channel flow and experimental data for the decaying homogenous isotropic turbulence.

Author

Magnus Carlsson

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Lars Davidson

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Peng Shia-Hui

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Swedish Defence Research Agency (FOI)

Sebastian Arvidson

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Saab AB

AIAA Scitech 2020 Forum

Vol. 1 PartF

AIAA Scitech Forum, 2020
Orlando, USA,

Subject Categories

Applied Mechanics

Computational Mathematics

Fluid Mechanics and Acoustics

DOI

10.2514/6.2020-2030

More information

Latest update

12/9/2020