Download or read book Linearized Theory of Cavity Flow Past a Hydrofoil of Arbitrary Shape written by Tatsuro Hanaoka and published by . This book was released on 1967 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Supercavitating Lifting Hydrofoils written by C. C. Hsu and published by . This book was released on 1966 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first- and second-order problems of steady cavity flows past lifting hydrofoils, based on single spiral vortex cavity termination models, are studied in detail. The general first- and second-order solutions are identical in form and, in general, can be expressed in terms of simple analytical functions. Numerical calculations have been carried out for flat-plate and circular-arc hydrofoils. Good agreement is found between the present results and previous nonlinear or high order calculations made by others. It is also found, to a good approximation, that second-order results for hydrofoils of arbitrary shapes and with long trailing cavities can generally be expressed in simple terms of linearized results.
Download or read book Hydrodynamics of Ship Propellers written by John P. Breslin and published by Cambridge University Press. This book was released on 1994 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical introduction to ship propeller hydrodynamics, for researchers in ocean technology, naval architecture, mechanical engineering.
Download or read book Journal of Basic Engineering written by and published by . This book was released on 1971 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Third Procedure for Linearized Fully Cavitating Hydrofoil Section Design written by B. R. Parkin and published by . This book was released on 1977 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third design procedure for fully cavitating hydrofoils is based upon a linearized inverse theory of two-dimensional cavity flows at arbitrary cavitation number. The cavity surfaces are assumed to originate at the leading and trailing edges of the wetted surface. This report reviews and completes the basic theory and gives detailed examples obtained from the resulting parametric design technique. In the third design procedure, one specifies the design lift coefficient, the cavitation number and the upper cavity thickness at two points along the profile chord. A prescribed pressure distribution shape is also selected. The method also includes off-design calculations in accordance with the direct linearized theory of cavity flows which determines the flow states for which interference can occur between the upper surface of the cavity and the upper nonwetted surface of the profile. The hydrodynamic performance of specific point designs is also given by these direct calculations. The chief new feature of the third design procedure is the ability of the designer to prescribe two points on the cavity surface instead of one as heretofore.
Download or read book Paper written by and published by . This book was released on 1973 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technology Reports written by Tōhoku Daigaku and published by . This book was released on 1970 with total page 1138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Second order Supercavitating Hydrofoil Theory written by Chuan Fang Chen and published by . This book was released on 1961 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second-order problem of Helmholtz flow past lifting hydrofoils and symmetric struts was formulated and solved. The solution involves elementary operations on the known solutions of the first-order problem. The second-order lift and drag coefficients are given in integral form. Results obtained for a flat plate at incidence and a symmetric wedge agree with the exact solutions up to the second order. (Author).
Download or read book The Linearized Theory of a Supercavitating Hydrofoil with a Jet Flap written by HUNG-TA. HO and published by . This book was released on 1961 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theoretical analysis is carried out for the steady cavity flow about thin hydrofoil sections at small incidence alpha, at the trailing edge of which a thin jet emerges at a small deflection pi. The flow is assumed to be inviscid and incompressible and the cavitation number is taken to be zero. The jet is assumed so thin that it can be considered as a vortex sheet across which the velocity is discontinuous. For the case of a flat plate, expressions have been obtained for lift, drag, pressure distribution, pitching moment, the jet shape and the cavity shape. Numerical calculations are made for a number of jet momentum-flux coefficients C sub J lying between 0.01 and 5. (Author).
Download or read book Advances In Engineering Mechanics reflections And Outlooks In Honor Of Theodore Y t Wu written by Daniel T Valentine and published by World Scientific. This book was released on 2005-11-29 with total page 747 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents more than 40 original papers on recent advances in several topics in engineering mechanics presented at The Theodore Y-T Wu Symposium on Engineering Mechanics: A celebration of Professor Wu's scientific contributions for his 80th birthday. The distinguished contributors include several members of the National Academy of Engineers and the topics cover nonlinear water waves, swimming and flying in nature, biomechanics, data analysis methodology, and propulsion hydrodynamics.The papers honor the significant accomplishments of Professor Wu in Engineering Science at Caltech, particularly in the areas of nonlinear waves, hydrodynamics, biomechanics and wave-structure interaction. They review the present state of the art of engineering mechanics, and chart the future of the field from the viewpoint of civil engineering, biomechanics, geophysics, mechanical engineering, naval architecture, ocean, and offshore engineering. The primary purpose of this book is to provide guidance and inspiration for those interested in continuing to advance engineering mechanics into the 21st century. To quote Professor Wu: ”The value of a book publication lies in disseminating new knowledge attained with effort and dedication from all those who participate, and in having the useful results within ready reach of students and researchers actively working in the field.”
Download or read book Theoretical Determination of Low drag Supercavitating Hydrofoils and Their Two dimensional Characteristics at Zero Cavitation Number written by Virgil E. Johnson and published by . This book was released on 1957 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Two new low-drag hydrofoils for operation at zero cavitation number are derived by the application of the Tulin-Burkart linearized theory. The two-dimensional lift-drag ratios of these two hydrofoils operating at design angle of attack are shown to be, theoretically, about 45 and 80 percent greater than the Tulin-Burkart configuration. A simplified calculation of the location of the upper cavity streamline for arbitrary configurations is also presented.
Download or read book The Proceedings written by Kazu-hiro Mori and published by . This book was released on 1990-01-15 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on research on and experience with needle exchange and bleach distribution programs and their effects on rates of drug use, the behavior of injection drug users, and the spread of HIV and other infectious diseases among injection drug users. It discusses U.S. needle exchange data, international evaluations of needle exchange programs, legal issues and drug paraphernalia laws, evaluation methods, and bleach distribution programs.
Download or read book THE LINEARIZED THEORY FOR SUPERCAVITATING HYDROFOILS OPERATING AT HIGH SPEEDS NEAR A FREE SURFACE written by and published by . This book was released on 1961 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: Linearized cavity flow theory, in conjunction with a mapping technique, is used to develop general expressions for the characteristics of supercavitating or fully ventilated, two dimensional hydrofoils with prescribed pressure distributions, designed for operation near a free surface. It is assumed that the hydrofoils Are operating at zero cavitation number and that the Froude number - based on depth - is very large. The general expressions are used to derive the lift, cavity drag and shape of hydrofoils composed of 2-, 3-, and 5-term and constant pressure camber configurations, combined with angle of attack and quasi-parabolic thickness and designed for operation at specific depths. Examples of numerical results are given and the effect of foil strength is discussed and evaluated.
Download or read book Fourteenth Symposium Naval Hydrodynamics written by and published by . This book was released on 1982 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cambered Bodies in Cavitating Flow a Nonlinear Analysis and Design Procedure written by Stanford University. Department of Civil Engineering and published by . This book was released on 1966 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: A nonlinear method is given for the description, in terms of nonphysical parameters, of fully cavitating cambered bodies in two-dimensional flow. The method, based on complex function theory and the spiral-vortex cavity model, permits a quasi-optimum design of certain classes of hydrofoils. Details of the procedure and means for its extension to other cambered bodies are described. (Author).
Download or read book Theoretical and Experimental Investigation of Supercavitating Hydrofoils Operating Near the Free Water Surface written by Virgil E. Johnson and published by . This book was released on 1961 with total page 84 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 1986 with total page 1160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
