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Author : S. O. Park
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Navier-Stokes Analysis of a Supersonic Flow Over a Moving Compression Ramp written by S. O. Park and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James Edward Carter
Publisher :
ISBN 13 :
Total Pages : 90 pages
Book Rating : 4.:/5 (31 download)
Download or read book Numerical Solutions of the Navier-Stokes Equations for the Supersonic Laminar Flow Over a Two-dimensional Compression Corner written by James Edward Carter and published by . This book was released on 1972 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical solutions have been obtained for the supersonic, laminar flow over a two-dimensional compression corner. These solutions were obtained as steady-state solutions to the unsteady Navier-Stokes equations using the finite-difference method of Brailovskaya, which has the second-order accuracy in the spatial coordinates. Good agreement was obtained between the computed results and the wall pressure distributions measured experimentally by Lewis, Kubota, and Lees for Mach numbers of 4 and 6.06, and respective Reynolds numbers, based on free-stream conditions and the distance from the leading edge to the corner, of 6.8 x 104 and 1.5 x 105. In those calculations, as well as in others, sufficient resolution was obtained to show the streamline pattern in the separation bubble. Upstream boundary conditions to the compression-corner flow were provided by numerically solving the unsteady Navier-Stokes equations for the flat-plate flow field, beginning at the leading edge. The compression-corner flow field was enclosed by a computational boundary with the unknown boundary conditions supplied by extrapolation from internally computed points. Numerical tests were performed to deduce that the magnitude of the errors introduced by the extrapolation was small. Calculations were made to show the effect of ramp angle and wall suction on the interaction flow field. The pressure distributions obtained in the present calculations, including a case of incipient separation, were plotted together by using the free-interaction scaling of Stewartson and Williams. A good correlation of the numerical results was found, but only fair agreement was found between this correlation and the universal pressure distribution found numerically by Stewartson and Williams.
Author : Matthew J. Warfield
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Navier-Stokes Analysis of Supersonic Flow Over a Rearward Facing Step Followed by Two Jets written by Matthew J. Warfield and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alex Julian Paul Fletcher
Publisher :
ISBN 13 :
Total Pages : 424 pages
Book Rating : 4.:/5 (526 download)
Download or read book The Use of Compliant Surface for Supersonic Flow Over a Compression Ramp written by Alex Julian Paul Fletcher and published by . This book was released on 2002 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supersonic boundary layer flow over a compression ramp is considered in the limit of large Reynolds numbers and for Mach numbers O(1), using the asymptotic theory of viscous-inviscid interactions. Reversed flow is known to occur near the ramp corner once the ramp angle is sufficiently large. At a second, larger ramp angle the flow is shown to exhibit an absolute instability which is believed to be a precursor of transition to turbulence. The properties of this instability, as well as a convective instability that precedes it are elucidated. Both types of instabilities are associated solely with the back-flow region. It is also shown that a compliant surface can, under certain circumstances control or delay the evolution of these instabilities. A compliant surface can also be subject to Tollmien-Schlichting instabilities and these are also investigated for supersonic flow over a flat, flexible surface. The effect of the material properties of the surface are considered in isolation and in combination, and neutral curves of stability are obtained. For a simple elastic surface, where deflections are proportional to the local pressure difference, the flow remains stable as for a rigid wall. A combined surface, where damping and inertial effects are significant exhibits complicated stability characteristics which are documented here in detail.
Author :
Publisher :
ISBN 13 :
Total Pages : 578 pages
Book Rating : 4.0/5 ( download)
Download or read book 39th AIAA Aerospace Sciences Meeting and Exhibit written by and published by . This book was released on 2001 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.:/5 (317 download)
Download or read book Investigation of Supersonic Turbulent Boundary-layer Separation on a Compression Ramp by an Integral Method written by and published by . This book was released on 1977 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Crawford F. Smith
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (317 download)
Download or read book Thin-layer and Full Navier-Stokes Calculations for Turbulent Supersonic Flow Over a Cone at an Angle of Attack written by Crawford F. Smith and published by . This book was released on 1993 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723186707
Total Pages : 182 pages
Book Rating : 4.1/5 (867 download)
Download or read book Investigation of Radiative Interactions in Supersonic Internal Flows written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-18 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analyses and numerical procedures are presented to study the radiative interactions of absorbing emitting species in chemically reacting supersonic flow in various ducts. The 2-D time dependent Navier-Stokes equations in conjunction with radiative flux equation are used to study supersonic flows undergoing finite rate chemical reaction in a hydrogen air system. The specific problem considered is the flow of premixed radiating gas between parallel plates. Specific attention was directed toward studying the radiative contribution of H2O, OH, and NO under realistic physical and flow conditions. Results are presented for the radiative flux obtained for different gases and for various combination of these gases. The problem of chemically reacting and radiating flows was solved for the flow of premixed hydrogen-air through a 10 deg compression ramp. Results demonstrate that the radiative interaction increases with an increase in pressure, temperature, amount of participating species, plate spacing, and Mach number. Most of the energy, however, is transferred by convection in the flow direction. In general the results indicate that radiation can have a significant effect on the entire flow field. Tiwari, Surendra N. and Thomas, A. M. Unspecified Center CHEMICAL REACTIONS; FLOW DISTRIBUTION; FUEL-AIR RATIO; HYDROXYL RADICALS; NITROGEN OXIDES; PREMIXING; REACTING FLOW; SUPERSONIC FLOW; CONVECTIVE FLOW; DUCTED FLOW; ENERGY TRANSFER; GAS FLOW; GAS MIXTURES; MACH NUMBER; NAVIER-STOKES EQUATION; PARALLEL PLATES; SPACING; TIME DEPENDENCE; WATER...
Author :
Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. C. Holmes
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book A Numerical Study of Supersonic Flow Over a Compression Corner with Different Incoming Boundary Layer Profiles written by S. C. Holmes and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stephen Akwaboa
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (632 download)
Download or read book Navier-stokes Solver for a Supersonic Flow Over a Rearward-facing Step written by Stephen Akwaboa and published by . This book was released on 2004 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seeks to develop a FORTRAN code capable of solving the full Navier-Stokes equations. The validity of this code was tested on the supersonic flat plate and the rearward-facing step problems. A model based on the set of two-dimensional Navier-Stokes equations was solved numerically using the MacCormack's explicit time marching scheme to study the flow structure of supersonic flow over a rearward-facing step. The solution methodology employed a piecemeal approach using the technique of solving for a flow over a flat plate to solve for the flow over the rearward-facing step. Parametric studies performed showed that the Mach number and the step height affect flow characteristics such as corner expansion, recirculation zone, and the base pressure which are of great importance in the design of the SCRAMJET engine.
Author : Yulia Halupovich
Publisher :
ISBN 13 :
Total Pages : 334 pages
Book Rating : 4.:/5 (87 download)
Download or read book Navier-Stokes Solution of Supersonic Flow Over a Backward Racing Step written by Yulia Halupovich and published by . This book was released on 1995 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Culbert B. Laney
Publisher : Cambridge University Press
ISBN 13 : 1107393604
Total Pages : 631 pages
Book Rating : 4.1/5 (73 download)
Download or read book Computational Gasdynamics written by Culbert B. Laney and published by Cambridge University Press. This book was released on 1998-06-13 with total page 631 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical methods are indispensable tools in the analysis of complex fluid flows. This book focuses on computational techniques for high-speed gas flows, especially gas flows containing shocks and other steep gradients. The book decomposes complicated numerical methods into simple modular parts, showing how each part fits and how each method relates to or differs from others. The text begins with a review of gasdynamics and computational techniques. Next come basic principles of computational gasdynamics. The last two parts cover basic techniques and advanced techniques. Senior and graduate level students, especially in aerospace engineering, as well as researchers and practising engineers, will find a wealth of invaluable information on high-speed gas flows in this text.
Author : Joseph J. S. Shang
Publisher : John Wiley & Sons
ISBN 13 : 1119155924
Total Pages : 452 pages
Book Rating : 4.1/5 (191 download)
Download or read book Computational Electromagnetic-Aerodynamics written by Joseph J. S. Shang and published by John Wiley & Sons. This book was released on 2016-04-11 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents numerical algorithms, procedures, and techniques required to solve engineering problems relating to the interactions between electromagnetic fields and fluid flow and interdisciplinary technology for aerodynamics, electromagnetics, chemical-physic kinetics, and plasmadynamics Integrates interlinking computational model and simulation techniques of aerodynamics and electromagnetics Combines classic plasma drift-diffusion theory and electron impact ionization modeling for electromagnetic-aerodynamic interactions Describes models of internal degrees of freedom for vibration relaxation and electron excitations
Author : Thomas B. Gatski
Publisher : Elsevier
ISBN 13 : 0080559123
Total Pages : 296 pages
Book Rating : 4.0/5 (85 download)
Download or read book Compressibility, Turbulence and High Speed Flow written by Thomas B. Gatski and published by Elsevier. This book was released on 2009-02-27 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the reader to the field of compressible turbulence and compressible turbulent flows across a broad speed range through a unique complimentary treatment of both the theoretical foundations and the measurement and analysis tools currently used. For the computation of turbulent compressible flows, current methods of averaging and filtering are presented so that the reader is exposed to a consistent development of applicable equation sets for both the mean or resolved fields as well as the transport equations for the turbulent stress field. For the measurement of turbulent compressible flows, current techniques ranging from hot-wire anemometry to PIV are evaluated and limitations assessed. Characterizing dynamic features of free shear flows, including jets, mixing layers and wakes, and wall-bounded flows, including shock-turbulence and shock boundary-layer interactions, obtained from computations, experiments and simulations are discussed. Describes prediction methodologies including the Reynolds-averaged Navier Stokes (RANS) method, scale filtered methods and direct numerical simulation (DNS) Presents current measurement and data analysis techniques Discusses the linkage between experimental and computational results necessary for validation of numerical predictions Meshes the varied results of computational and experimental studies in both free and wall-bounded flows to provide an overall current view of the field
Author : Holger Babinsky
Publisher : Cambridge University Press
ISBN 13 : 1139498649
Total Pages : 481 pages
Book Rating : 4.1/5 (394 download)
Download or read book Shock Wave-Boundary-Layer Interactions written by Holger Babinsky and published by Cambridge University Press. This book was released on 2011-09-12 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shock wave-boundary-layer interaction (SBLI) is a fundamental phenomenon in gas dynamics that is observed in many practical situations, ranging from transonic aircraft wings to hypersonic vehicles and engines. SBLIs have the potential to pose serious problems in a flowfield; hence they often prove to be a critical - or even design limiting - issue for many aerospace applications. This is the first book devoted solely to a comprehensive, state-of-the-art explanation of this phenomenon. It includes a description of the basic fluid mechanics of SBLIs plus contributions from leading international experts who share their insight into their physics and the impact they have in practical flow situations. This book is for practitioners and graduate students in aerodynamics who wish to familiarize themselves with all aspects of SBLI flows. It is a valuable resource for specialists because it compiles experimental, computational and theoretical knowledge in one place.
Author :
Publisher :
ISBN 13 :
Total Pages : 538 pages
Book Rating : 4.3/5 (91 download)
Download or read book Aeronautical Engineering written by and published by . This book was released on 1991 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
