Experiments involving second order effects in high-intensity, high-frequency acoustic fields

Doctor of Philosophy === Department of Mechanical and Nuclear Engineering === Sameer I. Madanshetty === Cavitation is a long studied phenomenon, fascinating and varied. Observed cavitation thresholds vary, typically ranging from the vapor pressure of the liquid to several atmospheres. Recent studies...

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Main Author: Wanklyn, Kevin Michael
Language:en_US
Published: Kansas State University 2011
Subjects:
Online Access:http://hdl.handle.net/2097/12200
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spelling ndltd-KSU-oai-krex.k-state.edu-2097-122002017-03-04T03:51:12Z Experiments involving second order effects in high-intensity, high-frequency acoustic fields Wanklyn, Kevin Michael Acoustics Second order effects Mechanical Engineering (0548) Doctor of Philosophy Department of Mechanical and Nuclear Engineering Sameer I. Madanshetty Cavitation is a long studied phenomenon, fascinating and varied. Observed cavitation thresholds vary, typically ranging from the vapor pressure of the liquid to several atmospheres. Recent studies in cavitation involving very clean liquids give rise to thresholds that surpass 100 atmospheres. Calibrating such high intensity, high frequency, focused acoustic fields presents a significant challenge. The present investigation describes how it is possible to exploit the second order acoustic effect of radiation pressure to seek reliable calibration of the high intensity acoustic fields. Experiments describe how to account for the attendant second order effect of acoustic streaming in the evaluation of the radiation force to accomplish meaningful calibration. Beyond the measurement of the second order quantities associated with cavitation, the work also presents a first investigation of a direct estimation of implosion energies of collapsing bubbles near well-characterized surfaces. 2011-10-04T18:43:15Z 2011-10-04T18:43:15Z 2011-10-04 2008 August Dissertation http://hdl.handle.net/2097/12200 en_US Kansas State University
collection NDLTD
language en_US
sources NDLTD
topic Acoustics
Second order effects
Mechanical Engineering (0548)
spellingShingle Acoustics
Second order effects
Mechanical Engineering (0548)
Wanklyn, Kevin Michael
Experiments involving second order effects in high-intensity, high-frequency acoustic fields
description Doctor of Philosophy === Department of Mechanical and Nuclear Engineering === Sameer I. Madanshetty === Cavitation is a long studied phenomenon, fascinating and varied. Observed cavitation thresholds vary, typically ranging from the vapor pressure of the liquid to several atmospheres. Recent studies in cavitation involving very clean liquids give rise to thresholds that surpass 100 atmospheres. Calibrating such high intensity, high frequency, focused acoustic fields presents a significant challenge. The present investigation describes how it is possible to exploit the second order acoustic effect of radiation pressure to seek reliable calibration of the high intensity acoustic fields. Experiments describe how to account for the attendant second order effect of acoustic streaming in the evaluation of the radiation force to accomplish meaningful calibration. Beyond the measurement of the second order quantities associated with cavitation, the work also presents a first investigation of a direct estimation of implosion energies of collapsing bubbles near well-characterized surfaces.
author Wanklyn, Kevin Michael
author_facet Wanklyn, Kevin Michael
author_sort Wanklyn, Kevin Michael
title Experiments involving second order effects in high-intensity, high-frequency acoustic fields
title_short Experiments involving second order effects in high-intensity, high-frequency acoustic fields
title_full Experiments involving second order effects in high-intensity, high-frequency acoustic fields
title_fullStr Experiments involving second order effects in high-intensity, high-frequency acoustic fields
title_full_unstemmed Experiments involving second order effects in high-intensity, high-frequency acoustic fields
title_sort experiments involving second order effects in high-intensity, high-frequency acoustic fields
publisher Kansas State University
publishDate 2011
url http://hdl.handle.net/2097/12200
work_keys_str_mv AT wanklynkevinmichael experimentsinvolvingsecondordereffectsinhighintensityhighfrequencyacousticfields
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