Download or read book Experimental Investigation of Velocity Distributions Downstream of Single Duct Bends written by John R. Weske and published by . This book was released on 1948 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results indicate that cross-sectional shape and aspect ratio are minor factors compared with radius ratio in affecting the velocity pattern. Variation of Reynolds number within the range of the tests had no appreciable effect on the velocity distribution in curved ducts.
Download or read book Technical Note National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1957 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental Investigation of Secondary Flow in an Accelerating Rectangular Elbow with 90 Degrees of Turning written by John D. Stanitz and published by . This book was released on 1953 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: The passage vortex associated with secondary flows appears to be near the suction surface and away from the plane wall of the elbow at the exit and does not have appreciable spanwise motion as it moves downstream the elbow exit. As the spoiler size increases, the boundary-layer form changes and a rather sudden difference in the secondary flow occurs, perhaps associated withthe reduced importance of viscous effects in thick boundary layers. It is suggested that the strength of the secondary vortices is small and that the energy of secondary flows is small.
Download or read book Experimental Study of Flow Distribution and Pressure Loss with Circumferential Inlet and Outlet Manifolds written by Ralph T. Dittrich and published by . This book was released on 1972 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water flow tests with circumferential inlet and outlet manifolds were conducted to determine factors affecting fluid distribution and pressure losses. Various orifice sizes and manifold geometries were tested over a range of flow velocities. With inlet manifolds, flow distribution was related directly to orifice discharge coefficients. A correlation indicated that nonuniform distribution resulted when the velocity head ratio at the orifice was not in the range of constant discharge coefficient. With outlet manifolds, nonuniform flow was related to static pressure variations along the manifold. Outlet manifolds had appreciably greater pressure losses than comparable inlet manifolds.
Download or read book NACA Research Memorandum written by and published by . This book was released on 19?? with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Prediction methods for jet V STOL propulsion aerodynamics written by Max Platzer and published by . This book was released on 1975 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Prediction methods for jet V STOL propulsion aerodynamics written by M. F. Platzer and published by . This book was released on 1975 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by United States. National Aeronautics and Space Administration and published by . This book was released on 1972 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Note written by and published by . This book was released on 1953 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis and Comparison with Theory of Flow field Measurements Near a Lifting Rotor in the Langley Full scale Tunnel written by Harry H. Heyson and published by . This book was released on 1956 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of an investigation in the Langley full-scale tunnel of the induced flow near a lifting rotor are given. Measurements of stream angles and velocities were made in several transverse planes along and behind the rotor in four different conditions representative of the cruising and high-speed ranges of flight. These measurements indicate that available theory may be used to calculate with reasonable accuracy the induced flow over the forward three-quarters of the disk for these flight conditions provided that a realistic nonuniform rotor disk-load distribution is assumed. Rearward of the three-quarter-diameter point, calculations of the induced velocity are increasingly inaccurate due to the rolling up of the trailing-vortex system. Farther rearward, well behind the rotor, the flow may be represented more accurately by the flow behind a uniformly loaded wing.
Download or read book List of Technical Notes 1947 1953 written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1954 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Strength and Ductility of Bainitic Steels written by Donald H. Desy and published by . This book was released on 1957 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some of the factors believed to affect the strength and ductile-to-brittle transition temperature of bainitic steels, including mean ferrite path and degree of internal strain, have been studied. Strength was measured by diamond pyramid hardness, and transition temperature was obtained from a tensile impact test on small notched specimens. Seven laboratory heats of carbon-molybdenum steel and two heats of carbon steel were transformed isothermally to bainite at various temperatures and tested. Mean-ferrite-path measurements were made on electron micrographs of three of these steels. The mean ferrite path was found to have only a slight effect on the strength of bainite and no effect on the transition temperature. Preliminary measurements of X-ray line broadening indicate that the degree of internal strain may be the controlling factor in determining the strength of bainite. The transition temperatures of the bainites fell within a band between -80 and -160 degrees C and did not vary regularly with hardness, carbon or alloy content, or mean ferrite path. In the SAE 1062 steel at high strength levels, bainite has a transition temperature lower than that of tempered martensite at the same strength level.
Download or read book Heat Exchanger Design written by Arthur P. Fraas and published by John Wiley & Sons. This book was released on 1991-01-16 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Second Edition of the well-received work on design, construction, and operation of heat exchangers. Demonstrates how to apply theories of fluid mechanics and heat transfer to practical problems posed by design, testing, and installation of heat exchangers. Tables and data have been brought up to date, and there is new material on problems of vibration and fouling, and on optimization of energy use in the chemical process and manufacturing industries. Covers all basic principles of heat exchanger design, and addresses many specialized situations encountered in engineering applications.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1969 with total page 1090 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some References On written by BHRA (Association) and published by . This book was released on 1962 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book United States Government Publications Monthly Catalog written by and published by . This book was released on 1948 with total page 1850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of NACA and NASA Published Information of Pertinence in the Design of Light Aircraft written by Clifford J. Moore and published by . This book was released on 1970 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report investigates critical reviews of NACA and NASA report literature on light aircraft design, with emphasis on propulsion subsystems, stability, control, propellers, performance, and safety.
