Download or read book Investigation Into the Propeller Cavitation in Oblique Flow written by Kaname Taniguchi and published by . This book was released on 1966 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the previous study on the propeller cavitation in oblique flow, it was noticed that the thrust and the torque measured in tunnel decreased with shaft inclination, contrary to the results of a theoretical calculation. In the present study, therefore, the cause of the discrepancy between the theory and the experiments was investigated first, and it was found that the decrease of the measured thrust and torque in oblique flow was due to the rotational wake of the rotating propeller shaft upstream of the propeller. Then, cavitation tests in oblique flow condition were carried out on the series of supercavitating propellers to see the effects of pitch ratio and expanded area ratio on the cavitation characteristics in oblique flow condition, as planned originally. The results were presented with the correction for the rotational wake. (Author).

Download or read book Investigation Into the Propeller Cavitation in Oblique flow written by Kaname Taniguchi and published by . This book was released on 1964 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three propeller models of high speed crafts were tested in both axial and oblique-flow conditions in a cavitation tunnel. The test results show that there are decreases in K sub T, K sub Q and e sub p in oblique-flow condition and that the decreases of K sub T and K sub Q are approximately proportional to the angle of inclination squared. The cavitation patterns on a blade varied considerably with its angular position due to the local variation of angle of incidence of the blade section. Using these test results, the sea trial results of the corresponding actual boats were analyzed. Considerable improvement was attained in model-ship correlation using the experimental results in oblique-flow condition, compared to the ordinary method using the axial-flow data. (Author).

Download or read book Cavitation on high speed propellers in oblique flow influence of propeller design and interaction with ship hull paper presented at the 13 th Symposium on Naval Hydrodynamics Tokyo Oct 1980 written by Olle Rutgersson and published by . This book was released on 1981 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technology and Science for the Ships of the Future written by A. Marinò and published by IOS Press. This book was released on 2018-06-22 with total page 1078 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1974, a scientific conference covering marine automation group and large vessels issues was organized under the patronage of the Technical Naval Studies Centre (CETENA) and the Italian National Research Council (CNR). A later collaboration with the Marine Technical Association (ATENA) led to the renaming of the conference as NAV, extending the topics covered to the technical field previously covered by ATENA national conferences. The NAV conference is now held every 3 years, and attracts specialists from all over the world. This book presents the proceedings of NAV 2018, held in Trieste, Italy, in June 2018. The book contains 70 scientific papers, 35 technical papers and 16 reviews, and subjects covered include: comfort on board; conceptual and practical ship design; deep sea mining and marine robotics; protection of the environment; renewable marine energy; design and engineering of offshore vessels; digitalization, unmanned vehicles and cyber security; yacht and pleasure craft design and inland waterway vessels. With its comprehensive coverage of scientific and technical maritime issues, the book will be of interest to all those involved in this important industry.

Download or read book Marine Propellers and Propulsion written by John Carlton and published by Butterworth-Heinemann. This book was released on 2012-11-23 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Propulsion technology is a complex, multidisciplinary topic with design, construction, operational and research implications. Bringing together a wealth of disparate information from the field, Marine Propellers and Propulsion provides comprehensive and cutting edge coverage to equip marine engineers, naval architects and anyone involved in propulsion and hydrodynamics with the knowledge needed to do the job. Drawing on experience from a long and varied career in consultancy, research, design and technical investigation, author John Carlton breaks the subject into three main sections - hydrodynamic theory, materials and mechanical considerations, and design, operation and performance. Connecting essential theory to practical problems in design, analysis and operational efficiency, Marine Propellers and Propulsion is an invaluable resource, packed with hard-won insights, detailed specifications and data. The most complete book available on marine propellers, fully updated and revised, with new chapters on propulsion in ice and high speed propellers Gathers together otherwise disparate material on the theory and practice of propulsion technology from the past 40 years’ development, including the latest developments in improving efficiency Written by a leading expert on propeller technology, essential for students, marine engineers and naval architects involved in propulsion and hydrodynamics

Download or read book Cavitation and Flow Visualization Investigation on Two Model Propellers written by S. D. Jessup and published by . This book was released on 1985 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments are described in which flow visualization and cavitation tests were conducted with two 24-inch diameter propeller models in the Center's 36-inch water tunnel. Flow visualization was performed using oil flow techniques and tufts to investigate possible flow separation on the blade surface. Cavitation tests were conducted to correlate with previously conducted surface pressure measurements. Results showed no indication of turbulent flow separation at the outer radii, and good qualitative comparisons between measured pressures and cavitation results. Originator supplied keywords: Marine propeller; Propeller cavitation; Flow visualization; Pressure distribution; Viscous flow; Oil film technique.

Download or read book Power Prediction Modeling of Conventional High Speed Craft written by Dejan Radojčić and published by Springer Nature. This book was released on 2019-10-29 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proposed book addresses various power prediction methods, a principal design objective for high-speed craft of displacement, semi-displacement, and planing type. At the core of the power prediction methods are mathematical models based on experimental data derived from various high-speed hull and propeller series. Regression analysis and Artificial Neural Network (ANN) methods are used as extraction tools for this kind of models.The most significant factors for in-service power prediction are bare hull resistance, dynamic trim, and the propeller’s open-water efficiency. Therefore, mathematical modeling of these factors is a specific focus of the book. Furthermore, the book includes a summary of most of the power-prediction-relevant literature published in the last 50 years, and as such is intended as a reference overview of the best high-speed craft modeling practices.Once these mathematical models have been developed and validated, they can be readily programmed into software tools, thereby enabling the parametric analyses required for the optimization of a high-speed craft design. The proposed book is intended primarily for naval architects who design and develop various types of high-speed vessels (yachts, boats etc.), as well as for students who are interested in the design of fast vessels. The book includes useful Excel Macro Codes for the outlined mathematical models. Moreover, software for all considered models is provided.

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1967 with total page 1062 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Unsteady Propeller Forces Fundamental Hydrodynamics and Unconventional Propulsion written by Ralph D. Cooper and published by . This book was released on 1971 with total page 1700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1974 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Development Reports written by and published by . This book was released on 1969 with total page 1304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the 2nd International Conference on Mechanical System Dynamics written by Xiaoting Rui and published by Springer Nature. This book was released on with total page 4383 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book SSC written by and published by . This book was released on 1946 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research and Development Reports written by and published by . This book was released on 1969-10 with total page 1340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Marine Propulsors written by Sverre Steen and published by MDPI. This book was released on 2018-10-10 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Marine Propulsors" that was published in JMSE