OpenFOAM with high order accuracy
Dear all OpenFOAMers:
This is my first time to have a public thread in CFDonline. It is known that most of the finite volume CFD with unstructured mesh, including OpenFOAM, possess 2-th order accuracy in space. However, for some applications, such as LES for turbulence combustion and acoustic instability, high order algorithm on unstructured mesh is needed. So far, there're several in-house codes that use 3-th or 4-th DG (discontinuity method) to achieve higher space accuracy. These codes include AVBP (http://www.cerfacs.fr/4-26334-The-AVBP-code.php) and some other papers also shows that it's possible to implement high order DG method on unstructured mesh. My questions: 1. Is it possible to implement DG-like method in OpenFOAM. 2. Whether the current system, ( I mean: interpolation->matrix solver) fits for the DG method? I've been searching for this topic but it seems that there' little material on the internet. Looking forward for your opinion ! |
Hi,
Have a look at HopeFOAM : https://github.com/HopeFOAM/HopeFOAM It provides DG formulation for OpenFOAM. Best, |
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