Print Email Facebook Twitter Models for seismic wave propagation in periodically layered porous media Title Models for seismic wave propagation in periodically layered porous media Author Kudarova, A. Van Dalen, K.N. Drijkoningen, G.G. Faculty Civil Engineering and Geosciences Department Geoscience & Engineering Date 2014-07-31 Abstract Several models are discussed for seismic wave propagation in periodically layered poroelastic media where layers represent mesoscopic-scale heterogeneities that are larger than the pore and grain sizes but smaller than the wavelength. The layers behave according to Biot’s theory. Wave propagation normal to the layering is considered and the models are validated with the solution obtained with the use of Floquet’s theory. The first model introduces frequency-dependent effective P-wave modulus and is viscoelastic. The second model introduces frequency-dependent effective Biot coefficients and the third model is governed by an equation with higher-order derivatives and real-valued coefficients. A special case is studied where the viscoelastic effective model significantly underestimates seismic attenuation. Subject seismic attenuationwave propagationeffective mediummesoscopic heterogeneitiesporoelasticityperiodic layeringpermeabilitysandy sediments To reference this document use: http://resolver.tudelft.nl/uuid:3a47ba2c-b554-4b9f-91c3-111ba2c43a40 Source IGSC5: 5th International Geosciences Student Conference, Russia, 28 July - 1 August 2014 Part of collection Institutional Repository Document type conference paper Rights (c) 2014 The Author(s) Files PDF 307511.pdf 152.53 KB Close viewer /islandora/object/uuid:3a47ba2c-b554-4b9f-91c3-111ba2c43a40/datastream/OBJ/view