Cavitation From a Butterfly Valve: Comparing 3D Simulations to 3D X-Ray Computed Tomography Flow Visualization

dc.contributor.author Brett, Graham
dc.contributor.author Riveland, Marc
dc.contributor.author Jensen, Terrence
dc.contributor.author Heindel, Theodore
dc.contributor.department Mechanical Engineering
dc.date 2019-07-18T06:27:04.000
dc.date.accessioned 2020-06-30T06:01:38Z
dc.date.available 2020-06-30T06:01:38Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 2011
dc.date.embargo 2014-11-17
dc.date.issued 2011-07-01
dc.description.abstract <p>Flow control valves may experience localized cavitation when the local static pressure drops to the liquid vapor pressure. Localized damage to the valve and surrounding area can occur when the vapor cavity collapses. Valve designs that reduce cavitation are based on empirical evidence and accumulated experience, but there are still considerable cavitation problems in industry. Valve designers may use computational fluid dynamics (CFD) to simulate cavitation in flow control valves, but model validation is challenging because there are limited data of local cavitation from the valve surface. Typically, the intensity of cavitation in a control valve is inferred from measurements of observable side effects of cavitation such as valve noise, vibration, or damage to the valve assembly. Such an indirect approach to characterizing cavitation yields little information about the location, degree, and extent of the cavitation flow field that can be used in CFD validation studies. This study uses 3D X-ray computed tomography (CT) imaging to visualize cavitation from a 5.1 cm diameter butterfly valve and compares the resulting vapor cloud to that predicted by CFD simulations. Qualitative comparisons reveal that the resulting cavitation structures are captured by the simulations when a small amount of non-condensable gas is introduced into the fluid and the simulations are completed in a transient mode.</p>
dc.description.comments <p>This is a conference proceeding from <em>ASME-JSME-KSME 2011 Joint Fluids Engineering Conference</em> 2 (2011): 161, <a href="http://dx.doi.org/10.1115/AJK2011-33003" target="_blank">doi:10.1115/AJK2011-33003</a>. Posted with permission.</p>
dc.identifier archive/lib.dr.iastate.edu/me_conf/125/
dc.identifier.articleid 1120
dc.identifier.contextkey 6365497
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath me_conf/125
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/54767
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/me_conf/125/2011_Heindel_CativationButterfly.pdf|||Fri Jan 14 19:22:57 UTC 2022
dc.source.uri 10.1115/AJK2011-33003
dc.subject.disciplines Acoustics, Dynamics, and Controls
dc.subject.disciplines Computer-Aided Engineering and Design
dc.subject.disciplines Fluid Dynamics
dc.subject.disciplines Graphics and Human Computer Interfaces
dc.subject.keywords butterfly valve
dc.subject.keywords cavitation
dc.subject.keywords computational fluid dynamics
dc.subject.keywords simulations
dc.subject.keywords x-ray computed tomography
dc.title Cavitation From a Butterfly Valve: Comparing 3D Simulations to 3D X-Ray Computed Tomography Flow Visualization
dc.type article
dc.type.genre conference
dspace.entity.type Publication
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relation.isOrgUnitOfPublication 6d38ab0f-8cc2-4ad3-90b1-67a60c5a6f59
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