Download or read book Powerplant Design for the Reduction of the Sonic Boom Generated by Supersonic Transport Aircraft written by Nicholas Theodore Galanis and published by . This book was released on 1970 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Supersonic Transport written by John Orin Powers and published by . This book was released on 1967 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: An attempt was made to outline the historical development of the United States supersonic transport development program and to place in proper perspective the national significance of the SST program. The technological aspects and problems of the sonic boom were reviewed. The actual overflight sonic boom programs to date were reviewed and capsule results were discussed.
Download or read book Second Conference on Sonic Boom Research written by Ira R. Schwartz and published by . This book was released on 1968 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a conference on sonic boom reduction in supersonic transport flight. Topics include shock wave propagation and refraction, prediction methods for acoustic attenuation, and aerodynamic engineering aspects.
Download or read book Third Conference on Sonic Boom Research written by Ira R. Schwartz and published by . This book was released on 1971 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prediction methods for sonic boom generation and propagation with overpressure minimization in supersonic transport design and operation.
Download or read book Shape Optimization of Supersonic Bodies to Reduce Sonic Boom Signature written by Junhui Li and published by . This book was released on 2016 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years there has been resurgence of interest by aerospace industry and NASA in supersonic transport aircraft. In recent studies, the emphasis has been on shape optimization of supersonic plane to reduce the acoustic signature of sonic boom resulting from the supersonic aircraft at high altitude in cruise flight. Because of the limitations of in-flight testing and cost of laboratory scale testing, CFD technology provides an attractive alternative to aid in the design and optimization of supersonic vehicles. In last decade, the predictive capability of CFD technology has significantly improved because of substantial increase in computational power, which allows for treatment of more complex geometries with larger meshes, better numerical algorithms and improved turbulence models for Reynolds-averaged Navier-Stokes (RANS) to reduce the predictive error. As computational power continues to increase, numerical optimization techniques have been combined with CFD to further aid in the design process. In this thesis, two cases from the recent AIAA Sonic Boom Prediction Workshop have been simulated and one of them is optimized to reduce the sonic boom signature. The AIAA Sonic Boom Prediction Workshop has three models for the study of predicting sonic boom signatures and sonic boom propagation; in this thesis the Lockheed SEEB-ALR and 69 Degree Delta Wing-Body models are considered. The grid generation is conducted by ANSYS ICEM. Flow calculations are performed with ANSYS Fluent using the compressible Euler equations. Excellent agreement between the computed pressure distributions and experimental results at all positions of the models is obtained. Shape optimization of the SEEB-ALR axisymmetric body to minimize the sonic boom signature is then performed using a genetic algorithm (GA). The optimized shape shows decrease in the strength of the sonic boom signature. The results presented in thesis demonstrate that CFD can be accurately and effectively employed for shape optimization of a supersonic airplane to minimize the boom signature.
Download or read book Sonic Boom Research written by A. Richard Seebass and published by . This book was released on 1967 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Lower Bound of Attainable Sonic boom Overpressure and Design Methods of Approaching this Limit written by Harry W. Carlson and published by . This book was released on 1962 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Airplane Size and Staging Effects on SST Cruise Sonic Boom written by John B. Whitlow and published by . This book was released on 1968 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sonic Boom Community Relations written by United States. Federal Aviation Agency and published by . This book was released on 1963 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some preliminary accomplishments of sonic boom research in predicting strength and location of sonic boom shock waves, determining the effects on light aircraft, and evaluating community tolerance to various levels of sonic boom intensity are reviewed. A brief summary of the implications of sonic boom with regard to supersonic transport design is included.
Download or read book Some Considerations of Sonic Boom written by J. Kenneth Power and published by . This book was released on 1961 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Testing of Low Sonic Boom Configurations and an Oblique All Wing Supersonic Transport written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-16 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: From December 1991 to June 1992, applied aerodynamic research support was given to the team working on Low Sonic Boom configurations in the RAC branch at NASA Ames Research Center. This team developed two different configurations: a conventional wing-tail and a canard wing, in an effort to reduce the overpressure of shock waves and the accompanying noise which are projected to the ground from supersonic civil transport aircraft. A generic description of this sensitive technology is given. Lee, Christopher A. Unspecified Center NASA-CR-197744, NAS 1.26:197744, MCAT-95-07 NCC2-617...
Download or read book Sonic Boom Research written by A. R. Seebass and published by . This book was released on 1967 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Sonic Boom on Supersonic Transport Design and Performance written by Edward J. Kane and published by . This book was released on 1964 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The paper discusses the effect of sonic boom overpressure limits on the design and performance of a supersonic transport. Possible methods of reducing the sonic boom by configuration tailoring and the effect of this on performance are described. The sonic boom overpressure produced by an airplane is influenced by contributions of the volume and lift of the configuration, the structure of the atmosphere, and the flight path of the airplane. Establishment of maximum overpressure levels may impose serious design and operation restrictions on the airplane, resulting in a compromised configuration which does not operate efficiently. It is possible to control the shock wave strength by careful design of the configuration so as to employ favorable interactions between the lift and volume contributions. However, care must be taken not to compromise other design features of the airplane, such as its drag, in order to obtain lower sonic boom overpressures. (Author).
Download or read book Sonic Booms Resulting from Extremely Low altitude Supersonic Flight Measurements and Observations on Houses Livestock and People written by C. W. Nixon and published by . This book was released on 1968 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sonic booms generated by F-4C aircraft flying low-level terrain- following profiles during Joint Task Force II operations near Tonopah, Nevada, were recorded under and near the flight tracks, and responses of structures, animals, and people were observed. Recorded overpressures up to 144 psf were analyzed, correlated with available aircraft operations data, and compared with data from different aircraft flying similar profiles. Observations of structures, animals, and people were correlated with the measured overpressures. Results include acquisition of near-field recordings of overpressures generated by the F-4C, the finding that some window glass fragments were propelled a short distance rather than falling directly below the window, an instance in which the measured overpressure of a sonic boom 1 mile to the side of the track far exceeded the predicted value, the finding that livestock (undetermined prior exposure to acoustic stimuli in this situation) did not respond adversely to the sonic booms, confirmation that very intense sonic booms do not harm people directly and the reaffirmation that the selection of site locations for low- level supersonic training missions will continue to pose a problem.
Download or read book Application of Sonic boom Minimization Concepts in Supersonic Transport Design written by Harry W. Carlson and published by . This book was released on 1973 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Correlation of Sonic boom Theory with Wind tunnel and Flight Measurements written by Harry W. Carlson and published by . This book was released on 1964 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sonic boom Characteristics of Proposed Supersonic and Hypersonic Airplanes written by F. Edward McLean and published by . This book was released on 1966 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
