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Vital Role Of Shock Cell And Mach Disk In Noise Production Of Jet Engines
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Book Synopsis Vital Role of Shock-cell and Mach disk in Noise Production of Jet Engines by : Gibin Raju
Download or read book Vital Role of Shock-cell and Mach disk in Noise Production of Jet Engines written by Gibin Raju and published by GRIN Verlag. This book was released on 2018-07-30 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2018 in the subject Engineering - Aerospace Technology, grade: 3.64, University of Cincinnati, language: English, abstract: The aim of this thesis is to discuss the vital role of shock-cell and Mach disk in noise production of jet engines. This study focuses on calculation of shock-cell spacing and Mach disk from various configuration of C-D Nozzles using Shadowgraph technique and detailing on how it varies with the test conditions. In the past three decades, the air traffic has nearly increased by about 40% and have always called for alternative propulsion techniques to replace or support the current traditional propulsion methodology in order to travel longer distances in shorter frame of time. In the light of current demand, the thesis draws motivation from increase in noise levels due to technological advancements of meeting higher specific thrust thus, achieving higher efficiency. The thesis emphasizes on the study of shock-cell noise by developing a complete view of the shock-cell structure and associated parameters with an imperfectly expanded supersonic jet on CD Nozzles over range of under-expanded, design and over-expanded operating conditions. In the entire thesis study, the heated jets from the different C-D Nozzle are analyzed for proper visualization for the shock-cell structure. Shadowgraph is used in current study as it offers very high flexibility and acts as an excellent technique for visualizing the shock diamond exhaust structure and turbulent eddies. A systematic analysis has been performed to quantify the shadowgraph data through semantic video analysis and measured the shock-cell spacing over different temperature ratios (TR) and nozzle pressure ratios (NPR). Circular, rectangular and method of characteristics (MOC) convergent-divergent nozzles of 1.5 design Mach number with and without plates were tested to interpret the results. The data recorded during the experiment was processed to obtain an averaged image. Further, the averaged images were utilized to compute the shock-cell spacing of each nozzle. The computed shock-cell spacing is compared over the theoretical shock-cell length using empirical formula to validate the results. A good match has been established between theoretical and experimental results for the tested nozzles expect for over-expanded operating conditions.
Book Synopsis The Generation and Radiation of Supersonic Jet Noise by : Lockheed-Georgia Company
Download or read book The Generation and Radiation of Supersonic Jet Noise written by Lockheed-Georgia Company and published by . This book was released on 1972 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerospace and Associated Technology by : Anup Ghosh
Download or read book Aerospace and Associated Technology written by Anup Ghosh and published by Taylor & Francis. This book was released on 2022-09-24 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Conference on Theoretical Applied Computational and Experimental Mechanics is organized every three years by the Department of Aerospace Engineering IIT Kharagpur. The conference is devoted to providing a platform for scientists and engineers to exchange their views on the latest developments in Mechanics since 1998. ICTACEM Conference is aimed at bringing together academics and researchers working in various disciplines of mechanics to exchange views as well as to share knowledge between people from different parts of the globe. The 8th ICTACEM was held from December 20-22, 2021, at the Indian Institute of Technology, Kharagpur.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1993 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aeroacoustics of Flight Vehicles by : Harvey H. Hubbard
Download or read book Aeroacoustics of Flight Vehicles written by Harvey H. Hubbard and published by . This book was released on 1991 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1997 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shock Structure and Noise of Supersonic Jets in Simulated Flight to Mach 0.4 by : Thomas D. Norum
Download or read book Shock Structure and Noise of Supersonic Jets in Simulated Flight to Mach 0.4 written by Thomas D. Norum and published by . This book was released on 1988 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shock Structure and Noise of Supersonic Jets in Simulated Flight to Mach 0.4 by : Thomas D. Norum
Download or read book Shock Structure and Noise of Supersonic Jets in Simulated Flight to Mach 0.4 written by Thomas D. Norum and published by . This book was released on 1988 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Near Noise Field of Static Jets and Some Model Studies of Devices for Noise Reduction by : Leslie W. Lassiter
Download or read book The Near Noise Field of Static Jets and Some Model Studies of Devices for Noise Reduction written by Leslie W. Lassiter and published by . This book was released on 1954 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Choked operation of model jets with unheated air indicates the appearence of a discrete-frequency component of very large magnitude. Shadowgraph records of the flow show that this condtion is associated with the appearance of flow formations suggestive of partly formed toroidal vortices in the vicinity of the shocks. Elimination of these formations is found to eliminate the discrete component and thereby to reduce the overall noise level.
Book Synopsis 41st AIAA Aerospace Sciences Meeting & Exhibit by :
Download or read book 41st AIAA Aerospace Sciences Meeting & Exhibit written by and published by . This book was released on 2003 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Astronautics & Aeronautics written by and published by . This book was released on 1975 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lecture series written by and published by . This book was released on 2003 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA SP. written by and published by . This book was released on 1992 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acoustics Abstracts written by and published by . This book was released on 1998 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1986 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
Book Synopsis A Cumulative Index to a Continuing Bibliography on Aeronautical Engineering by :
Download or read book A Cumulative Index to a Continuing Bibliography on Aeronautical Engineering written by and published by . This book was released on 1986 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis AIAA Journal by : American Institute of Aeronautics and Astronautics
Download or read book AIAA Journal written by American Institute of Aeronautics and Astronautics and published by . This book was released on 2006 with total page 1024 pages. Available in PDF, EPUB and Kindle. Book excerpt:
