Incipient and Developed Cavitation in Liquid Cryogens PDF Download
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Author: D. K. Edmonds
Publisher:
ISBN:
Category : Low temperature research
Languages : en
Pages : 36
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Book Description
Cavitation characteristics of liquid hydrogen and liquid nitrogen flowing in a transparent plastic venturi were determined and conventional cavitation-inception-parameter curves are given.Representative developed-cavitation data, consisting of pressure and temperature measurements within fully-developed cavities, are also given; measured temperatures and pressures within the cavities were generally not *in thermodynamic equilibrium.Existing theory was used to obtain equations which correlate the experimental data for developed cavities in liquid hydrogen or liquid nitrogen.The theory is extended to include the effect of cavity thickness and the experimental data are used to evaluate the results.Some recommendations for future work are given.(Author).
Author: D. K. Edmonds
Publisher:
ISBN:
Category : Low temperature research
Languages : en
Pages : 36
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Book Description
Cavitation characteristics of liquid hydrogen and liquid nitrogen flowing in a transparent plastic venturi were determined and conventional cavitation-inception-parameter curves are given.Representative developed-cavitation data, consisting of pressure and temperature measurements within fully-developed cavities, are also given; measured temperatures and pressures within the cavities were generally not *in thermodynamic equilibrium.Existing theory was used to obtain equations which correlate the experimental data for developed cavities in liquid hydrogen or liquid nitrogen.The theory is extended to include the effect of cavity thickness and the experimental data are used to evaluate the results.Some recommendations for future work are given.(Author).
Author: J. Hord
Publisher:
ISBN:
Category : Cavitation
Languages : en
Pages : 166
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Book Description
Boundary layer principles, along with two-phase concepts, are used to improve existing correlative theory for developed cavity data. Details concerning cavity instrumentation, data analysis, correlative techniques, and experimental and theoretical aspects of a cavitating hydrofoil are given. Both desinent and thermodynamic data, using liquid hydrogen and liquid nitrogen, are reported. The thermodynamic data indicated that stable thermodynamic equilibrium exists throughout the vaporous cryogen cavities. The improved correlative formulas were used to evaluate these data. A new correlating parameter based on consideration of mass limiting two-phase flow flux across the cavity interface, is proposed. This correlating parameter appears attractive for future correlative and predictive applications. Agreement between theory and experiment is discussed, and directions for future analysis are suggested. The front half of the cavities, developed on the hydrofoil, may be considered as parabolically shaped.
Author:
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Category : Physical instruments
Languages : en
Pages : 136
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Category : Industries
Languages : en
Pages : 592
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Category : Government publications
Languages : en
Pages :
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Category : Science
Languages : en
Pages : 10
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A newsletter for librarians, documentalists, and science information specialists.
Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Technology
Languages : en
Pages : 310
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ISBN:
Category :
Languages : en
Pages : 168
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Author:
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ISBN:
Category : Technology
Languages : en
Pages : 24
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Author: United States. National Bureau of Standards
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ISBN:
Category : Technology
Languages : en
Pages : 900
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