An Experimental And Theoretical Investigation Of Thermodynamic Effects On Developed Cavitation
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An Experimental And Theoretical Investigation Of Thermodynamic Effects On Developed Cavitation
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Author : Donald S. Weir
language : en
Publisher:
Release Date : 1975
An Experimental And Theoretical Investigation Of Thermodynamic Effects On Developed Cavitation written by Donald S. Weir and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with categories.
The results of an experimental and theoretical investigation of thermodynamic effects on developed cavitation are presented. Distributions of temperature and pressure were measured for zero- and quarter-caliber ogives over a wide range of velocities, temperatures and cavity lengths. The semi-empirical entrainment theory is used to correlate the measured temperature depressions in the cavity. This theory relates the maximum temperature depression expressed in dimensionless form as the Jakob number in terms of the dimensionless numbers of Nusselt, Reynolds, Froude, and Peclet, and dimensionless cavity length. The results show that, in general, the temperature depression increases with cavity lengths and temperature.
An Investigation Of Thermodynamic Effects On Cavitation In Water From 80 Degrees F To 180 Degrees F On Hemispherical Nosed Bodies
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Author : G. S Seidel (Jr)
language : en
Publisher:
Release Date : 1966
An Investigation Of Thermodynamic Effects On Cavitation In Water From 80 Degrees F To 180 Degrees F On Hemispherical Nosed Bodies written by G. S Seidel (Jr) 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.
The effects of variations in temperature on desinent and developed cavitation were investigated theoretically and experimentally. The experimental portion of the investigation was carried out with hemispherical nosed models of 1/4-inch and 1/2-inch diameters in the NASA ultra-high speed cavitation tunnel. Velocities were varied from 44 to 130 feet per second and temperatures were varied from 80F to 180F. Cavitation numbers were found to increase with velocity and temperature for desinent cavitation. For developed cavity flows, the cavitation numbers were found to increase or remain constant with increasing temperature. For developed cavity flow, both increases and decreases in cavitation numbers with velocity were observed. A theoretical method of predicting cavitation numbers was developed from the quasi-static approach used previously in pump applications. The theory was applied to desinent and to developed cavitation. Thermodynamic effects in desinent cavitation were found to be important only at the lowest velocity and highest temperature investigated. In developed cavity flows, it was found that in addition to thermodynamic effects, gas effects may be important. (Author).
Experimental And Theoretical Investigation Of Cavitation In Water
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Author : J. Ackeret
language : en
Publisher:
Release Date : 1936
Experimental And Theoretical Investigation Of Cavitation In Water written by J. Ackeret and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1936 with Cavitation categories.
Masters Theses In The Pure And Applied Sciences
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Author : Wade H. Shafer
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-21
Masters Theses In The Pure And Applied Sciences written by Wade H. Shafer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-21 with Science categories.
Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis· seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) *at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac· tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 20 (thesis year 1975) a total of 10,374 theses titles from 28 Canadian and 239 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. The organization of Volume 20 is identical to that of past years. It consists of theses titles arranged by discipline and by university within each discipline.
Cavitation
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Author : Yves Lecoffre
language : en
Publisher: Routledge
Release Date : 2021-10-08
Cavitation written by Yves Lecoffre and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-08 with Science categories.
This text deals with the concept that cavitation is the main limitation to the performance of hydraulic components. Topics covered include the vaporization of liquids due to high velocities or pressure fluctuations, and the effects of cavitation on the performances of rotary machinery. One chapter is devoted to cavitation noise which concerns many users, including surface ships and submarines, and the author finishes with some examples of the use of cavitation and subject-specific measuring techniques.
Nbs Special Publication
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Author :
language : en
Publisher:
Release Date : 1978
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 1978 with Weights and measures categories.
Thermodynamic And Statistical Methods For The Investigation Of Ultrasonic Cavitation
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Author : V. K. Makarov
language : en
Publisher:
Release Date : 1968
Thermodynamic And Statistical Methods For The Investigation Of Ultrasonic Cavitation written by V. K. Makarov and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with categories.
A theoretical analysis of ultrasonic cavitation was made and experiments were conducted on acoustical measurements under cavitation conditions. An equation for the critical radius of a gas nucleus forming in liquids under metastable thermodynamic conditions was obtained. An equation is also given for the total volume of gas nuclei formed during cavitation at a frequency of 20 Kc in the temperature range 10-60C, for different molal air contents dissolved in water. Experimental results showed that cavitation was highly dependent on the gas content of the liquid. (Author).
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.
Prediction Of Thermodynamic Effects Of Developed Cavitation Based On Liquid Hydrogen And Freon 114 Data In Scaled Venturis
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Author : Royce D. Moore
language : en
Publisher:
Release Date : 1968
Prediction Of Thermodynamic Effects Of Developed Cavitation Based On Liquid Hydrogen And Freon 114 Data In Scaled Venturis written by Royce D. Moore and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Cavitation categories.
Fundamentals Of Cavitation
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Author : Jean-Pierre Franc
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-01-22
Fundamentals Of Cavitation written by Jean-Pierre Franc and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-01-22 with Science categories.
This book treats cavitation, which is a unique phenomenon in the field of hyd- dynamics, although it can occur in any hydraulic machinery such as pumps, propellers, artificial hearts, and so forth. Cavitation is generated not only in water, but also in any kind of fluid, such as liquid hydrogen. The generation of cavitation can cause severe damage in hydraulic machinery. Therefore, the prevention of cavitation is an important concern for designers of hydraulic machinery. On the contrary, there is great potential to utilize cavitation in various important applications, such as environmental protection. There have been several books published on cavitation, including one by the same authors. This book differs from those previous ones, in that it is both more physical and more theoretical. Any theoretical explanation of the cavitation phenomenon is rather difficult, but the authors have succeeded in explaining it very well, and a reader can follow the equations easily. It is an advantage in reading this book to have some understanding of the physics of cavitation. Therefore, this book is not an introductory text, but a book for more advanced study. However, this does not mean that this book is too difficult for a beginner, because it explains the cavitation phenomenon using many figures. Therefore, even a beginner on cavitation can read and can understand what cavitation is. If the student studies through this book (with patience), he or she can become an expert on the physics of cavitation.