A benchmark experiment on gas cavitation

Cavitation research is often a matter of experiments conducted in complex machinery. There, it is extremely difficult to look into one of the most important issues of cavitation which is nucleation. This work investigates gas cavitation under well-defined flow conditions. Nuclei are placed in wall b...

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Bibliographic Details
Published in:Experiments in fluids 2014-08, Vol.55 (8), p.1-4, Article 1786
Main Authors: Peters, Franz, Honza, Rene
Format: Article
Language:English
Subjects:
Benchmarking
Bubbles
Cavitation
Engineering
Engineering Fluid Dynamics
Engineering Thermodynamics
Exact sciences and technology
Fluid dynamics
Fluid- and Aerodynamics
Fundamental areas of phenomenology (including applications)
Heat and Mass Transfer
Holes
Instrumentation for fluid dynamics
Letter
Nonhomogeneous flows
Nucleation
Physics
Shear stress
Walls
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Summary:Cavitation research is often a matter of experiments conducted in complex machinery. There, it is extremely difficult to look into one of the most important issues of cavitation which is nucleation. This work investigates gas cavitation under well-defined flow conditions. Nuclei are placed in wall bound cavities and are exposed to a radial gap flow featuring independent pressure and shear stress. A reciprocating bubble generation is achieved. Bubble frequency and size are evaluated which turn out to depend on pressure and wall shear stress. The experiment lends itself to systematic research in cavitation.
ISSN:0723-4864
1432-1114
DOI:10.1007/s00348-014-1786-5