Direct numerical simulation of micro-flow resonators in the presence of grazing flow

摘要

The sound absorption mechanism of multiple micro- ow resonators at the presence ofgrazing ows is investigated by direct numerical simulation (DNS). To validate the developed DNSmethod, several cases at zero grazing ow are firstly studied. And the present numerical resultsare compared with the experimental and numerical results by Tam et al. Furthermore, one, two andmultiple micro- ow resonators with grazing ows are numerically studied to show the effects of grazingflow and the interaction of multiple resonators.