A direct-hybrid CFD/CAA method based on lattice Boltzmann and acoustic perturbation equations Miro Gondrum, Sutharsan Satcunanathan, Ansgar Niemöller, Matthias Meinke and Wolfgang Schröder Acta Acust., 7 (2023) 5 Published online: 13 January 2023 DOI: 10.1051/aacus/2022062