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Author | : National Aeronautics and Space Administration (NASA) |
Publisher | : Createspace Independent Publishing Platform |
Total Pages | : 82 |
Release | : 2018-07-06 |
Genre | : |
ISBN | : 9781722231293 |
Download Analysis and Control of Supersonic Vortex Breakdown Flows Book in PDF, ePub and Kindle
Analysis and computation of steady, compressible, quasi-axisymmetric flow of an isolated, slender vortex are considered. The compressible, Navier-Stokes equations are reduced to a simpler set by using the slenderness and quasi-axisymmetry assumptions. The resulting set along with a compatibility equation are transformed from the diverging physical domain to a rectangular computational domain. Solving for a compatible set of initial profiles and specifying a compatible set of boundary conditions, the equations are solved using a type-differencing scheme. Vortex breakdown locations are detected by the failure of the scheme to converge. Computational examples include isolated vortex flows at different Mach numbers, external axial-pressure gradients and swirl ratios. Kandil, Osama A. Unspecified Center...
Author | : Osama A. Kandil |
Publisher | : |
Total Pages | : |
Release | : 1990 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download Analysis and Control of Supersonic Vortex Breakdown Flows Book in PDF, ePub and Kindle
Author | : Osama A. Kandil |
Publisher | : |
Total Pages | : |
Release | : 1991 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download Analysis and Control of Asymmetric Vortex Flows and Supersonic Vortex Breakdown Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 704 |
Release | : 1995 |
Genre | : Aeronautics |
ISBN | : |
Download Scientific and Technical Aerospace Reports Book in PDF, ePub and Kindle
Author | : Josef Rom |
Publisher | : Springer Science & Business Media |
Total Pages | : 408 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 1461228247 |
Download High Angle of Attack Aerodynamics Book in PDF, ePub and Kindle
The aerodynamics of aircraft at high angles of attack is a subject which is being pursued diligently, because the modern agile fighter aircraft and many of the current generation of missiles must perform well at very high incidence, near and beyond stall. However, a comprehensive presentation of the methods and results applicable to the studies of the complex aerodynamics at high angle of attack has not been covered in monographs or textbooks. This book is not the usual textbook in that it goes beyond just presenting the basic theoretical and experimental know-how, since it contains reference material to practical calculation methods and technical and experimental results which can be useful to the practicing aerospace engineers and scientists. It can certainly be used as a text and reference book for graduate courses on subjects related to high angles of attack aerodynamics and for topics related to three-dimensional separation in viscous flow courses. In addition, the book is addressed to the aerodynamicist interested in a comprehensive reference to methods of analysis and computations of high angle of attack flow phenomena and is written for the aerospace scientist and engineer who is familiar with the basic concepts of viscous and inviscid flows and with computational methods used in fluid dynamics.
Author | : |
Publisher | : |
Total Pages | : 752 |
Release | : 1994 |
Genre | : Government publications |
ISBN | : |
Download Monthly Catalogue, United States Public Documents Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : |
Release | : 1994 |
Genre | : Government publications |
ISBN | : |
Download Monthly Catalog of United States Government Publications Book in PDF, ePub and Kindle
Author | : Richard M. Wood |
Publisher | : |
Total Pages | : 104 |
Release | : 2003 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download Vortex Flows at Supersonic Speeds Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 1360 |
Release | : 1993 |
Genre | : Science |
ISBN | : |
Download Government Reports Announcements & Index Book in PDF, ePub and Kindle
Author | : National Aeronautics and Space Administration (NASA) |
Publisher | : Createspace Independent Publishing Platform |
Total Pages | : 100 |
Release | : 2018-06-15 |
Genre | : |
ISBN | : 9781721131433 |
Download Vortex Flows at Supersonic Speeds Book in PDF, ePub and Kindle
A review of research conducted at the National Aeronautics and Space Administration (NASA) Langley Research Center (LaRC) into high-speed vortex flows during the 1970s, 1980s, and 1990s is presented. The data are for flat plates, cavities, bodies, missiles, wings, and aircraft with Mach numbers of 1.5 to 4.6. Data are presented to show the types of vortex structures that occur at supersonic speeds and the impact of these flow structures on vehicle performance and control. The data show the presence of both small- and large-scale vortex structures for a variety of vehicles, from missiles to transports. For cavities, the data show very complex multiple vortex structures exist at all combinations of cavity depth to length ratios and Mach number. The data for missiles show the existence of very strong interference effects between body and/or fin vortices. Data are shown that highlight the effect of leading-edge sweep, leading-edge bluntness, wing thickness, location of maximum thickness, and camber on the aerodynamics of and flow over delta wings. Finally, a discussion of a design approach for wings that use vortex flows for improved aerodynamic performance at supersonic speeds is presented. Wood, Richard M. and Wilcox, Floyd J., Jr. and Bauer, Steven X. S. and Allen, Jerry M. Langley Research Center WU 706-51-21-10