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Book Experimental Results for a Hypersonic Nozzle afterbody Flow Field

Download or read book Experimental Results for a Hypersonic Nozzle afterbody Flow Field written by Frank W. Spaid and published by . This book was released on 1995 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Experimental Results for a Hypersonic Nozzle afterbody Flow Field

Download or read book Experimental Results for a Hypersonic Nozzle afterbody Flow Field written by Frank W. Spaid and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Experimental Results for a Hypersonic Nozzle Afterbody Flow Field

Download or read book Experimental Results for a Hypersonic Nozzle Afterbody Flow Field written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was conducted to experimentally characterize the flow field created by the interaction of a single-expansion ramp-nozzle (SERN) flow with a hypersonic external stream. Data were obtained from a generic nozzle/afterbody model in the 3.5 Foot Hypersonic Wind Tunnel at the NASA Ames Research Center, in a cooperative experimental program involving Ames and McDonnell Douglas Aerospace. The model design and test planning were performed in close cooperation with members of the Ames computational fluid dynamics (CFD) team for the National Aerospace Plane (NASP) program. This paper presents experimental results consisting of oil-flow and shadow graph flow-visualization photographs, afterbody surface-pressure distributions, rake boundary-layer measurements, Preston-tube skin-friction measurements, and flow field surveys with five-hole and thermocouple probes. The probe data consist of impact pressure, flow direction, and total temperature profiles in the interaction flow field. Spaid, Frank W. and Keener, Earl R. and Hui, Frank C. L. Ames Research Center AFTERBODIES; FLOW DISTRIBUTION; FLOW VISUALIZATION; GAS STREAMS; HYPERSONIC FLOW; NOZZLE FLOW; WIND TUNNEL TESTS; COMPUTATIONAL FLUID DYNAMICS; EXHAUST GASES; NATIONAL AEROSPACE PLANE PROGRAM; PRESSURE DISTRIBUTION; SHADOWGRAPH PHOTOGRAPHY; SKIN FRICTION; TEMPERATURE PROFILES...

Book New Results in Numerical and Experimental Fluid Mechanics IV

Download or read book New Results in Numerical and Experimental Fluid Mechanics IV written by Christian Breitsamter and published by Springer Science & Business Media. This book was released on 2012-08-13 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains 59 papers presented at the 13th Symposium of STAB (German Aerospace Aerodynamics Association). In this association, all those German scientists and engineers from universities, research establishments and industry are involved who are doing research and project work in numerical and experimental fluid mechanics and aerodynamics, mainly for aerospace but also in other applications. Many of the contributions give results from federal and European-Union sponsored projects. The volume gives a broad overview of the ongoing work in this field in Germany. Covered are flow problems of high and low aspect-ratio wings and bluff bodies, laminar flow control and transition, hypersonic flows, transition and fluid mechanical modelling, LES and DNS, numerical simulation, aeroelasticity, measuring techniques and propulsion flows.

Book Scientific and Technical Aerospace Reports

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Book Monthly Catalogue United States Public Documents

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1995-10 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Experimental Results for a Hypersonic Nozzle

Download or read book Experimental Results for a Hypersonic Nozzle written by Frank W. Spaid and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Flow Analysis and Design Optimization Methods for Nozzle Afterbody of a Hypersonic Vehicle

Download or read book Flow Analysis and Design Optimization Methods for Nozzle Afterbody of a Hypersonic Vehicle written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-06 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the methods developed for the aerodynamic analysis and the shape optimization of the nozzle-afterbody section of a hypersonic vehicle. Initially, exhaust gases were assumed to be air. Internal-external flows around a single scramjet module were analyzed by solving the three dimensional Navier-Stokes equations. Then, exhaust gases were simulated by a cold mixture of Freon and Argon. Two different models were used to compute these multispecies flows as they mixed with the hypersonic airflow. Surface and off-surface properties were successfully compared with the experimental data. In the second phase of this project, the Aerodynamic Design Optimization with Sensitivity analysis (ADOS) was developed. Pre and post optimization sensitivity coefficients were derived and used in this quasi-analytical method. These coefficients were also used to predict inexpensively the flow field around a changed shape when the flow field of an unchanged shape was given. Starting with totally arbitrary initial afterbody shapes, independent computations were converged to the same optimum shape, which rendered the maximum axial thrust. Baysal, Oktay Unspecified Center...

Book A Review of Some Recent Developments in Hypersonic Flow

Download or read book A Review of Some Recent Developments in Hypersonic Flow written by Antonio Ferri and published by . This book was released on 1958 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fluid Flow Analysis of a Hot core Hypersonic wind tunnel Nozzle Concept

Download or read book Fluid Flow Analysis of a Hot core Hypersonic wind tunnel Nozzle Concept written by John B. Anders and published by . This book was released on 1972 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: A hypersonic-wind-tunnel nozzle concept which incorporates a hot-core flow surrounded by an annular flow of cold air offers a promising technique for maximizing the model size while minimizing the power required to heat the test core. This capability becomes especially important when providing the true-temperature duplication needed for hypersonic propulsion testing. Several two-dimensional wind-tunnel nozzle configurations that are designed according to this concept are analyzed by using recently developed analytical techniques for prediction of the boundary-layer growth and the mixing between the hot and cold coaxial supersonic airflows. The analyses indicate that introduction of the cold annular flow near the throat results in an unacceptable test core for the nozzle size and stagnation conditions considered because of both mixing and condensation effects. Use of a half-nozzle with a ramp on the flat portion does not appear promising because of the thick boundary layer associated with the extra length. However, the analyses indicate that if the cold annular flow is introduced at the exit of a full two-dimensional nozzle, an acceptable test core will be produced. Predictions of the mixing between the hot and cold supersonic streams for this configuration show that mixing effects from the cold flow do not appreciably penetrate into the hot core for the large downstream distances of interest.