Hydrodynamic modulation, an experimental study of the modulation phenomenon for underwater application

dc.creatorMitchell, William Stanley
dc.date.accessioned2022-10-06T16:32:01Z
dc.date.available2022-10-06T16:32:01Z
dc.date.issued1968
dc.description.abstractFluid modulation is that process in which pressure fluctuations are produced in a flowing fluid by a local time-dependent variation in the area constraining the flow. This process is involved in the production of human speech. A theoretical and experimental investigation has been made of this phenomenon to ascertain its applicability to the problem of underwater communication. The theoretical portion of the text contains an analog study of sirens and other modulators based on vacuum-tube analyses. Mechanical devices were constructed which produced acoustic signals of from 20 Hz to 2 kHz in water by modulating a liquid flow. The experimental results showed that hydrodynamic modulation can be developed further as a practical means for producing acoustical signals underwater.
dc.description.departmentMechanical Engineering, Department of
dc.format.digitalOriginreformatted digital
dc.format.mimetypeapplication/pdf
dc.identifier.other13857786
dc.identifier.urihttps://hdl.handle.net/10657/12182
dc.language.isoen
dc.rightsThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.
dc.titleHydrodynamic modulation, an experimental study of the modulation phenomenon for underwater application
dc.type.dcmiText
dc.type.genreThesis
thesis.degree.collegeCollege of Engineering
thesis.degree.departmentMechanical Engineering, Department of
thesis.degree.disciplineMechanical Engineering
thesis.degree.grantorUniversity of Houston
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy

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