Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
High Velocity Jet Noise Source Location And Reduction Task 3 Experimental Investigation Of Suppression Principles Volume Ii Parametric Testing And Source Measurements
Download High Velocity Jet Noise Source Location And Reduction Task 3 Experimental Investigation Of Suppression Principles Volume Ii Parametric Testing And Source Measurements full books in PDF, epub, and Kindle. Read online High Velocity Jet Noise Source Location And Reduction Task 3 Experimental Investigation Of Suppression Principles Volume Ii Parametric Testing And Source Measurements ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis High Velocity Jet Noise Source Location and Reduction. Task 3 - Experimental Investigation of Suppression Principles. Volume II - Parametric Testing and Source Measurements by :
Download or read book High Velocity Jet Noise Source Location and Reduction. Task 3 - Experimental Investigation of Suppression Principles. Volume II - Parametric Testing and Source Measurements written by and published by . This book was released on 1978 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental investigations were conducted of suppression principles, including developing an experimental data base, developing a better understanding of jet noise suppression principles, and formulating empirical methods for the acoustic design of jet noise suppressors. Acoustic scaling has been experimentally demonstrated, and five 'optimum' nozzles have been selected for subsequent anechoic free-jet testing. A series of experimental tests was conducted to provide farfield acoustic data on 47 baseline and suppressor nozzle configurations and to provide aerodynamic nozzle performance on 18 of the configurations. Suppressor design parameters evaluated experimentally included: suppressor area ratio, radius ratio, flow management, inner stream geometry, element number and type, treated ejectors on multielement and unsuppressed inverted-coannualar-flow nozzles. Parametric testing established suppression levels for single and dual flow nozzles during static operation. Selective free- jet tests conducted on eight configurations were utilized to establish flight suppression levels for plug, chute, tube and hole nozzles. The aerodynamic performance test program illustrated that suppressed exhaust nozzles which incorporate elemental base areas as an integral part of the design are sensitive to external Mach number. In general suppressor element base drag was the most significant loss mechanism. This volume is part of the four volume set that constitutes the Task 3 final report.
Book Synopsis High Velocity Jet Noise Source Location and Reduction. Task 3. Experimental Investigation of Suppression Principles. Volume IV. Laser Velocimeter Time Dependent Cross Correlation Measurements by : P. R. Knott
Download or read book High Velocity Jet Noise Source Location and Reduction. Task 3. Experimental Investigation of Suppression Principles. Volume IV. Laser Velocimeter Time Dependent Cross Correlation Measurements written by P. R. Knott and published by . This book was released on 1978 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental investigations were conducted of suppression principles; including developing an experimental data base, developing a better understanding of jet noise suppression principles, and formulating empirical methods for the acoustic design of jet noise suppressors. Acoustic scaling has been experimentally demonstrated, and five 'optimum' nozzles have been selected for subsequent anechoic free-jet testing. In-jet/in-jet and in-jet/far-field exhaust noise diagnostic measurements were conducted using a Laser Velocimeter (LV). Measurements were performed on a conical nozzle and a coannular plug nozzle. Two-point, space/time measurements using a two-LV system were completed for the conical nozzle. Measurements of mean velocity, turbulent velocity, eddy convection speed, and turbulent length scale were made for a subsonic ambient jet and for a sonic heated jet. For the coannular plug nozzle, a similar series of two-point, laser-correlation measurements were performed. In addition, cross correlations between the laser axial component of turbulence and a far-field acoustic microphone were performed. This volume is part of the four volume set that constitutes the Task 3 final report. The other volumes are: Volume I-Verification of Suppression Principles and Development of Suppression Prediction Methods, Volume II-Parametric Testing and Source Measurements, Volume III-Suppressor Concepts Optimization. (Author).
Book Synopsis High Velocity Jet Noise Source Location and Reduction. Task 3 - Experimental Investigation of Suppression Principles. Volume I. Suppressor Concepts Optimization by :
Download or read book High Velocity Jet Noise Source Location and Reduction. Task 3 - Experimental Investigation of Suppression Principles. Volume I. Suppressor Concepts Optimization written by and published by . This book was released on 1978 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental investigations of suppression principles were conducted including developing an experimental data base, developing a better understanding of jet noise suppression principles, and formulating empirical methods for the acoustic design of jet noise suppressors. Acoustic scaling has been experimentally demonstrated, and five 'optimum' nozzles have been selected for subsequent anechoic free-jet testing. This report is organized into four volumes under separate cover: Volume I - Verification of Suppression Principles and Development of Suppression Prediction Methods, Volume II - Parametric Testing and Source Measurements, Volume III - Suppressor Concepts Optimization, and Volume IV - Laser Velocimeter Time-Dependent Cross Correlation Measurements. The experimental studies reported in Volume II involved acquisition of detailed far-field, acoustic data and of aerodynamic jet-flow-field data on several baseline and noise-abatement nozzles. These data were used to validate the theoretical jet noise prediction method of Task 2 and to develop and validate the empirical noise-prediction method presented herein. A series of seven suppressor configurations (ranging from geometrically simple to complex) were tested to establish the relative importance of four jet noise mechanisms (fluid shielding, convective amplification, turbulent mixing, and shock noise). In general, mechanical suppressors exhibit a significant reduction in shock noise relative to a baseline conical nozzle, reduce the effectiveness of fluid shielding (increase rather than suppress noise), reduce the effectiveness of convective amplification (reduce noise), and produce a modest reduction in turbulent mixing noise.
Book Synopsis Aeroacoustics of Flight Vehicles: Noise control by : Harvey H. Hubbard
Download or read book Aeroacoustics of Flight Vehicles: Noise control written by Harvey H. Hubbard and published by . This book was released on 1991 with total page 452 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 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Reference Publication written by and published by . This book was released on 1991 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SRIM Index written by and published by . This book was released on 1981 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Federal Aviation Administration. Systems Research and Development Service Publisher : ISBN 13 : Total Pages :366 pages Book Rating :4.3/5 (91 download)
Book Synopsis Report by : United States. Federal Aviation Administration. Systems Research and Development Service
Download or read book Report written by United States. Federal Aviation Administration. Systems Research and Development Service and published by . This book was released on 1971 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Free Jet Feasibility Study of a Thermal Acoustic Shield Concept for AST/VCE Application by :
Download or read book Free Jet Feasibility Study of a Thermal Acoustic Shield Concept for AST/VCE Application written by and published by . This book was released on 1984 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Contractor Report written by and published by . This book was released on 1984 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Free Jet Feasibility Study of a Thermal Acoustic Shield Concept for AST/VCE Application: Dual Stream Nozzles by :
Download or read book Free Jet Feasibility Study of a Thermal Acoustic Shield Concept for AST/VCE Application: Dual Stream Nozzles written by and published by . This book was released on 1985 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1982-02 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Federal Aviation Administration. Systems Research and Development Service Publisher : ISBN 13 : Total Pages :364 pages Book Rating :4.:/5 (25 download)
Book Synopsis Systems Research and Development Service, Progress Report, August 8-9, 1978 by : United States. Federal Aviation Administration. Systems Research and Development Service
Download or read book Systems Research and Development Service, Progress Report, August 8-9, 1978 written by United States. Federal Aviation Administration. Systems Research and Development Service and published by . This book was released on 1978 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Pollution & Control by :
Download or read book Environmental Pollution & Control written by and published by . This book was released on 1981 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government reports annual index by :
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acoustic Considerations of Flight Effects on Jet Noise Suppressor Nozzles by :
Download or read book Acoustic Considerations of Flight Effects on Jet Noise Suppressor Nozzles written by and published by . This book was released on 1979 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High velocity jet noise source location and reduction by :
Download or read book High velocity jet noise source location and reduction written by and published by . This book was released on 1977 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
