Modeling nonlinear compressional waves in marine sediments
نویسندگان
چکیده
منابع مشابه
Theory of compressional and shear waves in fluidlike marine sediments
An unconsolidated, saturated marine sediment consists of a more or less loose assemblage of mineral grains in contact, with seawater in the interstices. It is postulated that the two-phase medium possesses no skeletal frame, implying that the elastic rigidity modulus of the material is zero. A theory of wave propagation in such a sediment is developed, in which the medium is treated as a fluid ...
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A modified Korteweg-de Vries (KdV) equation is obtained for studying the propagation of nonlinear compressional waves and pulses in a chain of particles including the effect of damping. Suitably altering the linear phase velocity makes this equation useful also for the problem of phonon propagation in a two-dimensional (2D) lattice. Assuming a Yukawa potential, we use this method to model compr...
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Geoacoustic inversion requires a generic knowledge of the frequency-dependence of compressional wave properties in marine sediments, the nature of which is still under debate. The use of in situ probes to measure sediment acoustic properties introduces a number of experimental difficulties that must be overcome. To this end, a series of wellconstrained in situ acoustic transmission experiments ...
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ژورنال
عنوان ژورنال: Nonlinear Processes in Geophysics
سال: 2009
ISSN: 1607-7946
DOI: 10.5194/npg-16-151-2009