exaFOAM Grand Challenge GC2 - DLR Confined Jet High Pressure Combustor

This work is part of the exaFOAM project that aims to enable the open-source CFD software OpenFOAM to exploit massively parallel HPC architectures and overcome performance scaling bottlenecks. The case was designed to push available HPC systems to their limits and showcase the performance gains achieved over the duration of the project. The considered combustor stems from an experimental setup constructed by Severin (2019) at the Institute of Combustion Technology of the German Aerospace Center. The burner is based on the Recirculation-Stabilized Jet Flame (RSJF) concept, which is better known as FLOX. Initially developed for industrial furnaces, this technology has great potential in the application to gas turbines. Compared to widespread swirl burners, RSJF combustors feature low NOx emissions, homogeneous temperature distribution, and operate with a wide range of fuels and loads. The main goal of the experimental work was to clarify how the recirculation contributes to the flow stabilization. Apart from the experiments, a number of numerical investigations with the same geometry was performed, e.g. by Ax et. al. (2020) and Gruhlke et. al. (2020). Detailed information and case setup can be found here: https://archive.softwareheritage.org/swh:1:dir:12277909317dd5c2c8a61c9b6807fd9b06b9b4cd or in the README.md file contained in the case setup file GC2_case_setup.tar.gz.