Download or read book Analysis of Ejector Thrust by Integration of Calculated Surface Pressures written by John C. Sanders and published by . This book was released on 1949 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis of the thrust of air ejectors was made for the purpose of revealing the nature of ejector action and the source of its thrust. Cases for both incompressible and compressible fluids were considered.

Download or read book Analysis of Ejectors Used as Supersonic Propelling Nozzles for Jet Engines written by Bengt Ahrén and published by . This book was released on 1968 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need of efficient exhaust systems for supersonic aircraft has caused an increasing use of ejectors as propelling nozzles. The purpose of this work is to provide analytical methods for determination of ejector characteristics and pressure distribution along the ejector wall, required for thrust performance predictions.

Download or read book An Experimental Study of Static Thrust Augmentation Using a 2 D Variable Ejector written by Eli Kedem and published by . This book was released on 1979 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: A short rectangular throat ejector was constructed and tested to determine the effects of a number of variables on thrust augmentation and mass augmentation. The variables included those associated with geometry (e.g., diffuser length/throat length, diffuser area ratio, diffuser sidewall angle, nozzle angles and positions) and those due to differences in primary mass flow rate distributions among the nozzles. There were two kinds of thrust augmentation that were calculated; the free thrust augmenting ratio and the isentropic thrust augmenting ratio. The free thrust augmenting ratio is the ratio of the ejector's measured thrust to the sum of the nozzles' measured thrust, if each of them were discharged separately to ambient pressure. The isentropic thrust augmenting ratio is the ratio of the ejector's measured thrust to the calculated thrust of the nozzles if discharged isentropically to the ambient pressure. A free thrust augmentating ratio as high as 1.63 and an isentropic thrust augmenting ratio of up to 1.29 were obtained. Mass augmentation which is the ratio of secondary flow to primary flow was in the range of 3.5 to 5. Some conclusions concerning design aspects were drawn also. They include the necessity of 3-D shrouding for the ejector's inlet and exit and the prevention of blowing high velocity air (primary and BLC flow) tangential to the ejector walls. (AUthor).

Download or read book Lifting Surface Theory for Thrust Augmenting Ejectors written by P. M. Bevilaqua and published by . This book was released on 1982 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The circulation theory of airfoil lift has been applied to predict the static performance of thrust augmenting ejectors. The ejector shroud is considered to be 'flying' in the velocity field induced by the entrainment of the primary jets, so that the thrust augmenting force is viewed as analogous to the lift on a wing. Vortex lattice methods are used to compute the augmentation from the surface pressures on the shroud. The thrust augmentation is shown to depend on the length and shape of the shroud, as well as its position and orientation. Predictions of this new theory are compared with the results of classical momentum theories for calculating the augmentation from the stream thrust. (Author).

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 1949 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Bonding Between Metals and Ceramics written by H. J. Hamjian and published by . This book was released on 1949 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: The experiments conducted with boron carbide and each of four metals showed that nickel, cobalt, and iron formed a bonding zone between the metal and the ceramic and that chromium showed satisfactory physical wetting characteristics on the ceramic.

Download or read book United States Government Publications Monthly Catalog written by and published by . This book was released on 1949 with total page 1654 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book United States Government Publications a Monthly Catalog written by United States. Superintendent of Documents and published by . This book was released on 1949 with total page 1846 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1973 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report written by and published by . This book was released on 1945 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index of NACA Technical Publications written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1952 with total page 498 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.

Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1950 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Contractor Report written by United States. National Aeronautics and Space Administration and published by . This book was released on 1970 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Information Pilot written by and published by . This book was released on 1950 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Technical Reports written by and published by . This book was released on 1950 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ejectors and Mixing of Streams written by J. Seddon and published by . This book was released on 1964 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: