Author: Karen A. DeerePublisher:
ISBN:
Category :
Languages : en
Pages : 54
Book Description
Experimental and Computational Investigation of a Translating-Throat Single-Expansion-Ramp Nozzle
Author: Karen A. DeereAn Experimental and Computational Investigation of a Translating Throat Single Expansion-ramp Nozzle
Author: Karen Ann DeereExperimental and Computational Investigation of a Translating-Throat Single-Expansion-Ramp Nozzle
Author: National Aeronautics and Space Adm NasaPublisher: Independently Published
ISBN: 9781723836725
Category : Science
Languages : en
Pages : 50
Book Description
An experimental and computational study was conducted on a high-speed, single-expansion-ramp nozzle (SERN) concept designed for efficient off-design performance. The translating-throat SERN concept adjusts the axial location of the throat to provide a variable expansion ratio and allow a more optimum jet exhaust expansion at various flight conditions in an effort to maximize nozzle performance. Three design points (throat locations) were investigated to simulate the operation of this concept at subsonic-transonic, low supersonic, and high supersonic flight conditions. The experimental study was conducted in the jet exit test facility at the Langley Research Center. Internal nozzle performance was obtained at nozzle pressure ratios (NPR's) up to 13 for six nozzles with design nozzle pressure ratios near 9, 42, and 102. Two expansion-ramp surfaces, one concave and one convex, were tested for each design point. Paint-oil flow and focusing schlieren flow visualization techniques were utilized to acquire additional flow data at selected NPR'S. The Navier-Stokes code, PAB3D, was used with a two-equation k-e turbulence model for the computational study. Nozzle performance characteristics were predicted at nozzle pressure ratios of 5, 9, and 13 for the concave ramp, low Mach number nozzle and at 10, 13, and 102 for the concave ramp, high Mach number nozzle.Deere, Karen A. and Asbury, Scott C.Langley Research CenterNAVIER-STOKES EQUATION; THROATS; EXHAUST NOZZLES; NOZZLE DESIGN; COMPUTATIONAL FLUID DYNAMICS; K-EPSILON TURBULENCE MODEL; NOZZLE EFFICIENCY; FLOW VISUALIZATION; TRANSONIC FLIGHT; SUPERSONIC FLIGHT; SCHLIEREN PHOTOGRAPHY
Experimental And Computational Investigation Of A Translating-Throat Single-Expansion-Ramp Nozzle... NASA/TP-1999-209138... August 6, 1999
Author: United States. National Aeronautics and Space AdministrationPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
An Experiment and Computational Investigation of a Translating Throat Single Expansion-ramp Nozzle
Author: Karen A. DeereNuits de Broadway (Broadway through a keyhole). Le film complet : ciné-roman
Author: International Aerospace Abstracts
Author: The Finding Guide to AIAA Meeting Papers
Author: American Institute of Aeronautics and Astronautics. Technical Information ServicePublisher:
ISBN:
Category : AIAA paper
Languages : en
Pages : 184
Book Description
The Proceedings of the 2018 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2018)
Author: Xinguo ZhangPublisher: Springer
ISBN: 981133305X
Category : Technology & Engineering
Languages : en
Pages : 3068
Book Description
This book is a compilation of peer-reviewed papers from the 2018 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2018). The symposium is a common endeavour between the four national aerospace societies in China, Australia, Korea and Japan, namely, the Chinese Society of Aeronautics and Astronautics (CSAA), Royal Aeronautical Society Australian Division (RAeS Australian Division), the Korean Society for Aeronautical and Space Sciences (KSAS) and the Japan Society for Aeronautical and Space Sciences (JSASS). APISAT is an annual event initiated in 2009 to provide an opportunity for researchers and engineers from Asia-Pacific countries to discuss current and future advanced topics in aeronautical and space engineering.
Author: