TRANSPARENT BOUNDARY CONDITIONS FOR AEROACOUSTIC PROBLEMS

Application of transparent boundary conditions (TBCs) obtained by authors for different model problems connected with aeroacoustics is reviewed. Discrete counterparts of these conditions do provide very low and predictable value of the reflections from open boundaries for long simulation time. Despite non-localness in both space and time of TBCs operators, they require reasonable computational costs. We exemplify four different cases of derivation and application of TBCs operators useful for aeroacoustics problems.