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  • Title: Adding thermal and granularity effects to the effective density fluid model.
    Author: Williams KL.
    Journal: J Acoust Soc Am; 2013 May; 133(5):EL431-7. PubMed ID: 23656105.
    Abstract:
    Previously, an effective density fluid model (EDFM) was developed by the author [J. Acoust. Soc. Am. 110, 2276-2281 (2001)] for unconsolidated granular sediments and applied to sand. The model is a simplification of the full Biot porous media model. Here two additional effects are added to the EDFM model: heat transfer between the liquid and solid at low frequencies and the granularity of the medium at high frequencies. The frequency range studied is 100 Hz-1 MHz. The analytical sound speed and attenuation expressions obtained have no free parameters. The resulting model is compared to ocean data.
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