Numerical investigation of cloud cavitation and cavitation noise on a hydrofoil section
dc.contributor.author | Seo, Jung Hee | en_US |
dc.contributor.author | Lele, S. | en_US |
dc.date.accessioned | 2011-05-26T17:38:46Z | |
dc.date.available | 2011-05-26T17:38:46Z | |
dc.date.issued | 2009-08 | en_US |
dc.identifier | CAV2009-62 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/84259 | en_US |
dc.description.abstract | Partial cavitating flow and cloud cavitation on a hydrofoil section are numerically investigated. A fully compressible, density based homogeneous equilibrium model is employed along with a RANS turbulence model and high-order numerical methods based on a sixthorder central compact scheme and localized artificial diffusivity scheme are used to resolve the cavitating flow and pressure waves generated by cloud cavitation. Predicted results compare well with the experimental measurements for steady/unsteady partial cavitating flows on a NACA66 hydrofoil at cavitation number, ?=1.0-1.4 and angle of attack 6 and 8 degree. Detailed experimental data from the work of Leroux et al. were provided by Prof. J.-A. Astolfi at Institut de Recherche de l Ecole Navale, France. Numerical visualizations of cloud cavity evolution and surface pressure signals show relatively good agreement with the experimental data. The re-entrant jet flow and pressure wave generated by collapse of cloud cavity are closely investigated. The mechanism associated with two different unsteady dynamics of cloud cavitation observed in previous numerical/experimental study for angle of attack 6 and 8 degree are further explored using the present computational results. The pressure pulse generated by the collapse of bubble cloud and the flow-blockage effect caused by a large cavity cloud are found to be responsible for the shifting of cloud cavitation dynamics. | en_US |
dc.relation.ispartofseries | CAV2009 - 7th International Symposium on Cavitation, 16-20 August 2009, Ann Arbor, MI | en_US |
dc.title | Numerical investigation of cloud cavitation and cavitation noise on a hydrofoil section | en_US |
dc.type | Article | en_US |
dc.contributor.affiliationother | Stanford University; Stanford University | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/84259/1/CAV2009-final62.pdf | |
dc.owningcollname | Mechanical Engineering, Department of |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.