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Author : Henry T. Nagamatsu
Publisher :
ISBN 13 :
Total Pages : 63 pages
Book Rating : 4.:/5 (159 download)
Download or read book Boundary-layer Transition on a Highly Cooled 10° Cone in Hypersonic Flows written by Henry T. Nagamatsu and published by . This book was released on 1964 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Philip E. Everhart
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (31 download)
Download or read book Experimental Investigation of Boundary-layer Transition on a Cooled 7.5° Total-angle Cone at Mach 10 written by Philip E. Everhart and published by . This book was released on 1967 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald M. Wilson
Publisher :
ISBN 13 :
Total Pages : 94 pages
Book Rating : 4.3/5 (91 download)
Download or read book Measurements of Hypersonic Turbulent Heat Transfer on a Highly Cooled Cone written by Donald M. Wilson and published by . This book was released on 1967 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulent boundary layer heat transfer rates were measured on a thin-walled slender cone at a free-stream Mach number of 5.0. Wall to stagnation temperature ratios from 0.15 to 0.40 were obtained by pre-cooling the model using liquid nitrogen. Tests at a wide range of Reynolds numbers were conducted by varying the tunnel supply pressure; thus providing data for both laminar and mixed laminar-turbulent types of boundary layers. The experimental results obtained were compared with existing theories which predict convective heat transfer coefficients. These comparisons indicate that the data corresponding to a 760R supply temperature verify the predictions of Winkler and Cha; however, data acquired at a supply temperature of 1160R substantiate the predictions of Spalding and Chi. (Author).
Author : H. T. Nagamatsu
Publisher :
ISBN 13 :
Total Pages : 55 pages
Book Rating : 4.:/5 (227 download)
Download or read book Roughness, Bluntness, and Angle of Attack Effects on Hypersonic Boundary Layer Transition written by H. T. Nagamatsu and published by . This book was released on 1964 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was conducted in a hypersonic shock tunnel to study the laminar boundary layer transition on a highly cooled 10-degree cone of 4-foot length over the Mach number range of 8.5 to 10.5 with a stagnation temperature of 1400K. The effects on transition of tip surface roughness, tip bluntness, and =2-degree angle of attack were investigated. With fast response thin film surface heat transfer gauges, it was possible to detect the passage of turbulent bursts that appeared at the beginning of transition. It was found that the surface roughness greatly promoted transition in the proper Reynolds number range. The Reynolds number for the beginning and end of transition at the 8.5 Mach number location were 3,800,000 to 9,600,000 and 2,200,000 to 4,200,000 for the smooth sharp tip and rough sharp tip, respectively. The local skin friction data agreed with the heat transfer data through Reynolds analogy. The tip bluntness data showed a strong delay in the beginning of transition for a cone base to tip diameter ratio of 20, approximately a 35% increase in Reynolds number over that of the smooth sharp tip case. The angle of attack data indicated the cross flow to have a strong influence on transition by promoting it on the sheltered side of the cone and delaying it on the windward side. (Author).
Author : Hudson Lee Conley
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.:/5 (48 download)
Download or read book An Experimental Study of Highly Cooled Boundary Layer Transition and Heat Transfer in Supersonic Flow written by Hudson Lee Conley and published by . This book was released on 1971 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael C. Fischer
Publisher :
ISBN 13 :
Total Pages : 76 pages
Book Rating : 4.:/5 (31 download)
Download or read book An Experimental Investigation of Boundary-layer Transition on a 10 ̊half-angle Cone at Mach 6.9 written by Michael C. Fischer and published by . This book was released on 1970 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boundary layer transition on nose cones at hypersonic speeds.
Author : Kenneth F. Stetson
Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.3/5 (91 download)
Download or read book Comments on Hypersonic Boundary-layer Transition written by Kenneth F. Stetson and published by . This book was released on 1990 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a survey paper on the subject of hypersonic boundary-layer transition. Part 1 discusses boundary-layer stability theory, hypersonic boundary-layer stability experiments, and a comparison between theory and experiment. Part 2 contains comments on how many configuration and flow parameters influence transition. Part 3 discusses some additional general aspects of transition. Part 4 discusses problems of predicting transition and comments on three prediction methods. Part 5 contains some general guidelines for prediction methodology. Keywords: Boundary layer transition, Boundary layer stability, Hypersonic boundary layers.
Author :
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (31 download)
Download or read book A Study of Boundary Layer Transition on Outgassing Cones in Hypersonic Flow written by and published by . This book was released on 1971 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael E. Tauber
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (31 download)
Download or read book A Review of High-speed, Convective, Heat-transfer Computation Methods written by Michael E. Tauber and published by . This book was released on 1989 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : ROGER DUNLAP
Publisher :
ISBN 13 :
Total Pages : 113 pages
Book Rating : 4.3/5 (91 download)
Download or read book EFFECTS OF COOLING ON TRANSITION IN USE BOUNDARY LAYER ON A HEMISPHERE IN SIMULATED HYPERSONIC FLOW written by ROGER DUNLAP and published by . This book was released on 1961 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alan E. Blanchard
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.:/5 (317 download)
Download or read book An Experimental Investigation of Wall-Cooling Effects on Hypersonic Boundary-Layer Stability in a Quiet Wind Tunnel written by Alan E. Blanchard and published by . This book was released on 1996 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the primary reasons for developing quiet tunnels is for the investigation of high-speed boundary-layer stability and transition phenomena without the transition-promoting effects of acoustic radiation from tunnel walls. In this experiment, a flared-cone model under adiabatic- and cooled-wall conditions was placed in a calibrated, "quiet" Mach 6 flow and the stability of the boundary layer was investigated using a prototype constant-voltage anemometer. The results of this experiment were compared with linear-stability theory predictions and good agreement was found in the prediction of second-mode frequencies and growth. In addition, the same "N = 10" criterion used to predict boundary-layer transition in subsonic, transonic, and supersonic flows was found to be applicable for the hypersonic flow regime as well. Under cooled-wall conditions, a unique set of continuous spectra data was acquired that documents the linear, nonlinear, and breakdown regions associated with the transition of hypersonic flow under low-noise conditions
Author : National Aeronautics and Space Administration NASA
Publisher :
ISBN 13 : 9781729140024
Total Pages : 30 pages
Book Rating : 4.1/5 (4 download)
Download or read book A Quiet Tunnel Investigation of Hypersonic Boundary-Layer Stability Over a Cooled, Flared Cone written by National Aeronautics and Space Administration NASA and published by . This book was released on 2018-10-23 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A flared-cone model under adiabatic and cooled-wall conditions was placed in a calibrated, low-disturbance Mach 6 flow and the stability of the boundary layer was investigated using a prototype constant-voltage anemometer. The results were compared with linear-stability theory predictions and good agreement was found in the prediction of second-mode frequencies and growth. In addition, the same 'N = 10' criterion used to predict boundary-layer transition in subsonic, transonic, and supersonic flows under low freestream noise conditions was found to be applicable for the hypersonic flow regime as well. Under cooled-wall conditions, a unique set of spectral data was acquired that documents the linear, nonlinear, and breakdown regions associated with the transition of hypersonic flow under low-noise conditions. Blanchard, Alan E. and Selby, Gregory V. and Wilkinson, Stephen P. Langley Research Center NCC1-180...
Author :
Publisher :
ISBN 13 :
Total Pages : 1004 pages
Book Rating : 4.:/5 (319 download)
Download or read book NASA Technical Note written by and published by . This book was released on 1970 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Hodge McCloskey
Publisher :
ISBN 13 :
Total Pages : 662 pages
Book Rating : 4.:/5 (346 download)
Download or read book A study of boundary layer transition on outgassing cones in hypersonic flow written by Michael Hodge McCloskey and published by . This book was released on 1971 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : George G. Mateer
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (459 download)
Download or read book Unusual Boundary-layer Transition Results on Cones in Hypersonic Flow written by George G. Mateer and published by . This book was released on 1968 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. J. Stalmach
Publisher :
ISBN 13 :
Total Pages : 77 pages
Book Rating : 4.:/5 (11 download)
Download or read book A Study of Boundary Layer Transition on Outgassing Cones in Hypersonic Flow written by C. J. Stalmach and published by . This book was released on 1971 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Albert H. Boudreau
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.3/5 (91 download)
Download or read book A Correlation of Artifically Induced Boundary-layer Transition Data from Blunt Slender Cones at Hypersonic Speeds written by Albert H. Boudreau and published by . This book was released on 1979 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
