A method to characterize the porous parameters (i.e., tortuosity, flow resistivity, viscous, and thermal lengths) of double-layered poroelastic structures is proposed and validated. The porosity, elastic coefficients (estimated), frame density, and thickness of each layer are assumed to be known. The way is to first identify the effective density and bulk… (More)

@article{Liu2017InverseIO,
title={Inverse identification of the acoustic porous parameters of double-layered poroelastic structures by acoustic rigidity approximation.},
author={Yaoguang Liu and Xiandong Liu and Jun Xu and Xiaojun Hu and Zhaowang Xia},
journal={The Journal of the Acoustical Society of America},
year={2017},
volume={142 1},
pages={72}
}