Observation of a new surface mode on a fluid-saturated permeable solid

Journal Article · Mon Jun 01 04:00:00 EDT 1992 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.106860· OSTI ID:7034778

Nagy, P B ^[1]

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1. The Ohio State University, Columbus, Ohio 43210 (United States)

Almost ten years ago, S. Feng and D. L. Johnson predicted the presence of a new surface mode on a fluid/fluid-saturated porous solid interface with closed surface pores (J. Acoust. Soc. Am. {bold 74}, 906 (1983)). We found that, due to surface tension, practically closed-pore boundary conditions can prevail at an interface between a nonwetting fluid (e.g., air) and a porous solid saturated with a wetting fluid (e.g., water or alcohol). Surface wave velocity and attenuation measurements were made on alcohol-saturated porous sintered glass at 100 kHz. The experimental results show clear evidence of the new slow'' surface mode predicted by Feng and Johnson.

• DOE Contract Number: FG02-87ER13749
• OSTI ID: 7034778
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 60:22; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

665000* -- Physics of Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATTENUATION
FABRICATION
GLASS
MATERIALS
POROUS MATERIALS
SATURATION
SINTERING
SOUND WAVES
SURFACE PROPERTIES
SURFACE TENSION
VELOCITY
WATER SATURATION