Seismic wave propagation in biphasic viscoelastic TTI media Part I: theory | Geophysics
pubs.geoscienceworld.org
This study reveals how seismic waves behave in complex dual-fluid rock formations, pushing wave propagation theory into the messy, anisotropic real world of Earth's crust.
Biot's Poroelasticity TheoryWave Propagation TheoryViscoelasticityFinite-Difference Method
Theory Briefing
- Seismic waves traveling through biphasic rocks split into distinct slow and fast modes — a direct consequence of Biot's poroelastic wave theory.
- The study models tilted transverse isotropy (TTI), meaning rock layers aren't flat, forcing classical wave equations into more realistic but far harder geometries.
- A high-order staggered grid finite-difference method solves the velocity-stress equations, bridging abstract viscoelastic theory with computable seismic simulations.