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Comment on “Ultrasonic Monitoring of Spontaneous Imbibition Experiments: Precursory Moisture Diffusion Effects Ahead of Water Front” by David et al. (2017)
Author(s) -
Kovalyshen Yevhen
Publication year - 2018
Publication title -
journal of geophysical research: solid earth
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.983
H-Index - 232
eISSN - 2169-9356
pISSN - 2169-9313
DOI - 10.1029/2018jb016040
Subject(s) - imbibition , front (military) , ultrasonic sensor , diffusion , amplitude , observable , moisture , mechanics , porous medium , physics , porosity , acoustics , geology , thermodynamics , meteorology , geotechnical engineering , optics , botany , germination , quantum mechanics , biology
This brief note presents an alternative explanation to the fact that in the imbibition experiments with active ultrasonic monitoring the amplitude of the recorded P waves detects imbibition front before any changes in the P wave velocities are observable. The model is based on P wave interaction with the imbibition front. The qualitative estimation is in agreement with previously published experimental data.