Special Session 108: New Developments in porous media

Reconstruction of dynamic tortuosity from data at distinct frequencies

Yvonne M Ou
University of Delaware
Dynamic tortuosity plays an important role in the energy dissipation of wave propagation in poroelastic materials by being the kernel function of the memory terms in the time-domain Biot-Johnson-Koplik-Dashen (JKD) wave equations. In this talk, the integral representation formula (IRF) of dynamic tortuosity will be presented and the mathematical strategy for constructing the dynamic tortuosity function from dynamic permeability at distinct frequencies, utilizing the IRF, will be explained. Numerical results for JKD tortuosity will be demonstrated in this talk.