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Dispersion of waves in porous cylinders with patchy saturation Part I. Formulaton and torsional waves
Laboratory experiments on wave propagation through saturated and partially saturated porous media have often been conducted on porous cylinders that were initially fully saturated and then allowed to dry while continuing to acquire data on the wave behavior. Since it is known that drying typically progresses from outside to inside, a sensible physical model of this process is concentric cylinders having different saturation levels--the simplest example being a fully dry outer cylindrical shell together with a fully wet inner cylinder. We use this model to formulate the equations for wave dispersion in porous cylinders for patchy saturation (i.e. drainage) conditions. In addition to multiple modes of propagation obtained numerically from these dispersion relations, we find two distinct analytical expressions for torsional wave modes. We solve the dispersion relation for torsional waves for two examples: Massillon sandstone and Sierra White granite. The drainage analysis appears to give improved agreement with the data for both these materials.
Date:
July 28, 2004
Creator:
Berryman, J G & Pride, S R
Object Type:
Article
System:
The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 89, No. 269, Ed. 1 Wednesday, July 28, 2004
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 28, 2004
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Archer Advocate (Holliday, Tex.), Vol. 2, No. 17, Ed. 1 Wednesday, July 28, 2004
Weekly newspaper from Holliday, Texas that includes local, state, and national news along with advertising.
Date:
July 28, 2004
Creator:
Thomas, John
Object Type:
Newspaper
System:
The Portal to Texas History
Perry Daily Journal (Perry, Okla.), Vol. 111, No. 145, Ed. 1 Wednesday, July 28, 2004
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 28, 2004
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, July 28, 2004
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
July 28, 2004
Creator:
Schwind, Jim & Looby, Edward
Object Type:
Newspaper
System:
The Portal to Texas History