Study Of The Surface Films Of Gas Nuclei As Related To Cavitation And Tensile Strength In Water Part Iii Dissolving Of Gas Nuclei In Turbulent Flow
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Study Of The Surface Films Of Gas Nuclei As Related To Cavitation And Tensile Strength In Water Part Iii Dissolving Of Gas Nuclei In Turbulent Flow
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Author : L. H. Bernd
language : en
Publisher:
Release Date : 1967
Study Of The Surface Films Of Gas Nuclei As Related To Cavitation And Tensile Strength In Water Part Iii Dissolving Of Gas Nuclei In Turbulent Flow written by L. H. Bernd and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with categories.
The paper is a report of an experimental investigation of the dissolving of gas nuclei (small gas bubbles) in turbulently flowing water in a pipe. The rate of dissolving is important in a circulating water tunnel because it determines whether or not cavitation produced nuclei reach a small size to produce tensile strength in the water, increase the cavitation inception level, and affect the results of a cavitation test. The rate of dissolving is greatly affected by the presence of surface films that form about gas nuclei from trace organic materials dissolved in the water. (Author).
Study Of The Surface Films Of Gas Nuclei As Related To Cavitation And Tensile Strength In Water Part Iv Dissolving Of Gas Nuclei In Turbulent Flow
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Author : Leslie H. Bernd
language : en
Publisher:
Release Date : 1967
Study Of The Surface Films Of Gas Nuclei As Related To Cavitation And Tensile Strength In Water Part Iv Dissolving Of Gas Nuclei In Turbulent Flow written by Leslie H. Bernd and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with categories.
This paper is a report of an investigation of the dissolving of gas nuclei (small gas bubbles) in turbulently flowing water in a pipe. The rate of dissolving is important in a circulating water tunnel because it determines whether or not cavitation produced nuclei reach a small enough size to produce tensile strength in the water, increase the cavitation inception level, and affect the results of a cavitation test. The rate of dissolving is greatly affected by the presence of surface films that form about gas nuclei from trace organic materials dissolved in the water. Three distinct dissolving regimes exist: (1) rapid dissolving without a surface film in place, (2) rapid dissolving with an uncompressed surface film, and (3) slow or no dissolving with a compressed surface film. (Author).
Study Of The Surface Films Of Gas Nuclei As Related To Cavitation And Tensile Strength In Water
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Author : Leslie H. BERND
language : en
Publisher:
Release Date : 1966
Study Of The Surface Films Of Gas Nuclei As Related To Cavitation And Tensile Strength In Water written by Leslie H. BERND and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with categories.
Cavitation produces gas nuclei in water. Trace materials in the water produce surface films about nuclei. Certain films prevent dissolving of nuclei and the acquisition of tensile strength. Conversely, the absence of films makes for rapid dissolving and the acquisition of tensile strength. Tensile strength is undesirable and leads to errors in cavitation testing. Water from various test facilities was therefore tested for film formation to determine the likelihood of acquiring tensile strength. Most of the water was found to have negligible film formation, and rapidly acquired tensile strength after cavitation. Various protein and hydrocarbon materials were used to produce surface films about nuclei to investigate film action, and find materials suitable for controlling dissolving. It was found possible by this means to produce water that ranged from no tensile strength gain after cavitation, to varying degrees of dissolving and tensile strength gain. It was found possible to match the various waters. (Author).
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1967
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Aeronautics categories.
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Technical Abstract Bulletin
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Author : Defense Documentation Center (U.S.)
language : en
Publisher:
Release Date : 1967
Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Science categories.
Report
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Author : United States. National Bureau of Standards
language : en
Publisher:
Release Date : 1968
Report written by United States. National Bureau of Standards and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Hydraulic engineering categories.
Nbs Special Publication
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Author :
language : en
Publisher:
Release Date : 1968
Nbs Special Publication written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Weights and measures categories.
Study Of The Surface Films Of Gas Nuclei As Related To Cavitation And Tensile Strength In Water
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Author : L. H. BERND
language : en
Publisher:
Release Date : 1964
Study Of The Surface Films Of Gas Nuclei As Related To Cavitation And Tensile Strength In Water written by L. H. BERND and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with categories.
The formation of surface films about gas nuclei in water has been investigated. The absence -- or existence -- of surface films determines whether water will or will not acquire tensile strength. Various waters have been measured on this ability to acquire tensile strength. Surface films have been manipulated to make water weak or to produce tensile strength. These effects are of fundamental importance to cavitation, and should help explain the occurrence of tensile strength in water tunnels. (Author).
Current Hydraulic Laboratory Research In The United States
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Author :
language : en
Publisher:
Release Date : 1968
Current Hydraulic Laboratory Research In The United States written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Hydraulic engineering categories.
Hydraulic Research In The United States 1968
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Author : United States. National Bureau of Standards
language : en
Publisher:
Release Date : 1969
Hydraulic Research In The United States 1968 written by United States. National Bureau of Standards and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Hydraulic engineering categories.