Experimental and numerical observation of flow-acoustics feedback phenomena due to two diaphragms in tandem inserted in a rectangular ductSilouane de Reboul, Emmanuel Perrey-Debain, Jean-Michel Ville, Nicolas Zerbib, Florian Hugues and Stéphane MoreauActa Acust., 8 (2024) 7DOI: https://doi.org/10.1051/aacus/2023062