Flight-measured laminar boundary-layer transition phenomena including stability theory analysis
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National Aeronautics and Space Administration, Scientific and Technical Information Branch, For sale by the National Technical Information Service,] , [Washington, D.C.], [Springfield, Va
Boundary layer., Laminar flow., Transition flow., Aerodynamic coefficients., Boundary layer transition., Laminar flow., Turbulent boundary l
|Statement||Clifford J. Obara, Bruce J. Holmes.|
|Series||NASA technical paper -- 2417.|
|Contributions||Holmes, Bruce J., United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.|
|The Physical Object|
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Washington, D.C.: National Aeronautics and Space Administration, Scientific and Technical Information Branch ; Springfield, Va.: For sale by the National Technical Information Service, (OCoLC) Microfiche: Obara, Clifford J. Flight-measured laminar boundary layer transition phenomena including stability theory analysis.
Washington, D.C.: National Aeronautics and Space Administration, Scientific and Technical Information Branch, April Abstract. Paper briefly summarizes the current status of linear stability theory as applied to laminar flow control for aerodynamics.
Results indicate that the conventional “N factor” method of correlating stability theory and transition has a broad application range, including low- and high-speeds, two- and three- dimensional mean flow and TS, Gortler and crossflow disturbance by: Flight-measured laminar boundary layer transition phenomena including stability theory analysis / (Washington, D.C.: National Aeronautics and Space Administration, Scientific and Technical Information Branch ; Springfield, Va.
Obara, Clifford J.; and Holmes, Bruce J.: Flight Measured Laminar Boundary-Layer Transition Phenomena Including Stability Theory Analysis. NASA TP Cited by: 6. Obara and B. Holmes, “Flight-measured laminar boundary-layer transition phenomena including stability theory analysis,” NASA Tech.
Publ. TP (). Google Scholar Cited by: The laminar to turbulent transition of a boundary layer can be affected by many variables, including pressure gradients, mechanical vibrations, and free stream flow disturbances.
Details Flight-measured laminar boundary-layer transition phenomena including stability theory analysis FB2
Experimental laminar, transitional, and turbulent boundary-layer profiles on a wedge at local Mach number and comparisons with theory / (Washington, D.C.: National Aeronautics and Space Administration: [For sale by the Clearinghouse for Federal Scientific and Technical, Springfield, Virginia ], ), by Michael C.
Fischer, Dal V. Flight Measured Laminar Boundary Layer Transition Phenomena Including Stability Theory Analysis Author: Clifford J. Obara ISBN: NASA Genre: File Size:. Flight-measured effects of boattail angle and Mach number on the nozzle afterbody flow of a twin-jet fighter.
Boundary-layer transition on a deg cone - Wind tunnel/flight correlation The stability analysis of a guidance scheme for following a given trajectory.
The fact that extended regions of laminar flow on high-lift systems are achievable and maintainable (at least for this class of transport airplanes) coupled with the sensitivity of high-lift aerodynamic performance to transition location has significant implications in terms of the requirements that should be put on CFD simulations and wind Cited by: Full text of "NASA Technical Reports Server (NTRS) A cumulative index to the issues of Aeronautical Engineering" See other formats.
Flight-measured laminar boundary-layer transition phenomena including stability theory analysis. NASA Technical Reports Server (NTRS) Obara, C.
J.; Holmes, B. Flight experiments were conducted on a single-engine turboprop aircraft fitted with a in-chord, 3-ft-span natural laminar flow glove at glove section lift coefficients from to Full text of "NASA Technical Reports Server (NTRS) Research and Technology Objectives and Plans Summary (RTOPS)" See other formats.
Full text of "NASA scientific and technical publications: A catalog of Special Publications, Reference Publications, Conference Publications, and Technical Papers, " See other formats. Please give the title in the original language and include an English translation.
Description Flight-measured laminar boundary-layer transition phenomena including stability theory analysis EPUB
Historical books are also welcome. I will consider meteorological books if they are of particular interest for sailplane pilots, e.g. Boundary layer analysis etc. Assistance translating book. Journal of Economic Education Books by Language Journal of Evolutionary Biochemistry and Physiology Journal of Labor Economics Journal of materials engineering.
Journal of Autism and Developmental Disorders Journal of. Flight-measured laminar boundary-layer transition phenomena including stability theory analysis. NASA Technical Reports Server (NTRS) where the basic concepts of Prandtl's boundary layer theory are represented from mathematical and physical points of view, and a method is indicated by means of which even more complicated cases can be.
CFD analysis for the lift and drag on a fin/mount used as a jet vane TVC for boost control. R Roger, Studies of laminar, transitional, and turbulent hypersonic flows over curved compression surfaces Prediction of hypersonic shock wave turbulent boundary layer interactions with the k-l two equation turbulence model.
Brian Smith.  Jack Fischel and Jack Nugent, "Flight Determination of the Longitudinal Stability in Accelerated Maneuvers at Transonic Speeds for the Douglas DII Research Airplane Including the Effects of an Outboard Wing Fence," NACA RM-L53A16 (); Jack Fischel, "Effect of Wing Slats and Inboard Wing Fences on the Longitudinal Stability.
Transition takes place when the length Reynolds number nominally exceeds 5 x 10 to for a flat plate This is the critical Reynolds number, often assumed to be one-half million for many flows, although pressure gradients strongly influence the location of transition in the boundary layer.
is the objective of boundary-layer stability. environmental engineering considerations and laboratory tests To support the tailoring process described in Part One, each test method in Part Two contains some environmental data and references, and identifies tailoring opportunities for the particular method.
Some methods afford a wide latitude for tailoring; some can be tailored up to established limits, and some have relatively few. Afwal Tm 84 Prediction of Aerodynamic Drag.
The unit Reynolds number Re^ is smaller than that at infinity. The boundary layer will be laminar at this altitude and it is at most a low supersonic boundary layer. Laminar-turbulent transition, Chapter 8, will happen only at altitudes below to km, where the boundary layer is also at most a low supersonic boundary layer.
aerodynamic design of transport aircraft Figures to present an example of the application of three and four fences on the wing-fuselage combination described in figure Due to the fences the lift coefficient at which the pitch-up tendency starts and thus the maximum usable lift coefficient is increased considerably over the.
- Principles of Flight [ Q] - Free ebook download as Text File .txt), PDF File .pdf) or read book online for free. POF database atpl questions. Depending on the amount of leakage this might trip the laminar boundary layer on the cockpit edge to turbulent flow and increase the profile drag for the fuse-lage .
This phenomena is not captured by the simulations performed in this work. However, the position of the boundary layer transition line for A.
Full text of "NASA Technical Reports Server (NTRS) Aeronautical engineering: A continuing bibliography with indexes (supplement )" See other formats. aerodynamics to boundary-layer transition, some attention must be paid to transition location on the airfoil elements.
Recently, a transition prediction algorithm has been incorporated into the INS2D flow solver that makes it possible to determine the onset of transition automatically as. a I B OF THE U N IVLRSITY or ILLINOIS f For sale by Clearinghouse for Federal Scientific and Technical Information, Springfield, VA t Distribution made by Issuing Office.
Not definitely available if unaccompanied by a price X Printed for Official Use (not available for distribution) Sent to Depository Libraries SIZES OF PUBLICATIONS Symbols used to designate sizes of.Journey in Aeronautical Research a Career at NASA Langley Research Center - Free ebook download as PDF File .pdf), Text File .txt) or read book online for free.
.For these experiments simulating the boundary layer structure and turbulence is adequate. Ground conditions influence the boundary layer [see Eq. ()] and so no single boundary layer works for all experiments.
Nor does the atmosphere have only one temperature gradient as both daily and seasonal changes occur. 50 WIND TUNNELSAuthor: Prem Chand.
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