Gravity, capillary and dilational wave mode resonance at a visco-elastic two-fluid interface

(cont.) space corresponding to experimental conditions to thereby interpret the experimental results. We tested this method on noisy simulated data sets and then applied it to published experimental data sets. We designed an experimental set-up to measure wave number, spatial damping coefficient, and wave slope data for a 3-10 hertz frequency range of transverse and longitudinal waves in a clean enclosed flume. We used kimball-mounted lasers whose beams passed through optical glass in the tank and lid to capture transverse wave motion. The experimental conditions included waves traveling on fatty acid monolayers on aqueous solutions and also waves traveling on a visco-elastic fluid at a variety of temperatures. In addition to the wave data we obtained, we also measured in-situ surface tension. Analyzing the experimental data, we demonstrated the effects of modulation of one wave mode on another. We obtained the rheological parameters for these experimental systems by the inverse method. We used the inverse method to construct the dispersion relation solution space corresponding to the experimental conditions. We used the diagnostic tools for root classification, spatial stability together with a graphical representation of the dispersion relation solution space to understand the physics underlying our experiments. We demonstrated resonance phenomena experimentally with the wave data from the visco-elastic fluid and confirmed this resonance numerically: gravity-capillary resonance near 4.2 hertz ...

Department dc:contributor.department

Massachusetts Institute of Technology. Dept. of Civil and Environmental Engineering.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2005

Author dc:creator

• Brown, Susan Jayne, 1967-

Advisor dc:contributor.advisor

• Dick Y.P. Yue and Michael S. Triantafyllou.

• Civil and Environmental Engineering.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

en_US

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/28931

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/28931