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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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 |
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Acoustics Second order effects Mechanical Engineering (0548) |
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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 |
_version_ |
1718418816677969920 |