A Theory of Asymmetric Hypersonic Blunt-body Flows

A Theory of Asymmetric Hypersonic Blunt-body Flows PDF

Author: Rudolph J. Swigart

Publisher:

Published: 1962

Total Pages: 22

ISBN-13:

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From author's abstract, page ii: "The problem of supersonic and hypersonic flow past blunt bodies at small angles of attack is considered. Two-dimensional asymmetric as well as three-dimensional flow is analyzed."

On Hypersonic Blunt Body Flow Fields Obtained with a Time-dependent Technique

On Hypersonic Blunt Body Flow Fields Obtained with a Time-dependent Technique PDF

Author: John David Anderson (Jr.)

Publisher:

Published: 1968

Total Pages: 78

ISBN-13:

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New results are presented for inviscid, supersonic and hypersonic blunt-body flow fields obtained with a numerical time-dependent method patterned after that of Moretti and Abbett. In addition, important comments are made with regard to the physical and numerical nature of the method. Specifically, numerical results are presented for two-dimensional and axisymmetric parabolic and cubic blunt bodies as well as blunted wedges and cones; these results are presented for zero degrees angle of attack and for a calorically perfect gas with gamma = 1.4. The numerical results are compared with other existing theoretical and experimental data. Also, the effects of initial conditions and boundary conditions are systematically examined with regard to the convergence of the time-dependent numerical solutions, and the point is made that the initial conditions can not be completely arbitrary. Finally, in order to learn more about the performance of the time-dependent method, a numerical experiment is conducted to examine the unsteady propagation and region of influence of a slight pressure disturbance introduced at a point on the surface of a blunt body.

Hypersonic Flow Theory

Hypersonic Flow Theory PDF

Author: Wallace Hayes

Publisher: Elsevier

Published: 2012-12-02

Total Pages: 481

ISBN-13: 032314876X

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Hypersonic Flow Theory presents the fundamentals of fluid mechanics, focusing on the hypersonic flow theory and approaches in theoretical aerodynamics. This book discusses the assumptions underlying hypersonic flow theory, unified supersonic-hypersonic similitude, two-dimensional and axisymmetric bodies, and circular cylinder. The constant-streamtube-area approximation, streamtube-continuity methods, and tangent-wedge and tangent-cone are also deliberated. This text likewise covers the similar laminar boundary layer solutions, bluntness induced interactions on slender bodies, and free molecule transfer theory. The dynamics of hypersonic flight or hypersonic wing theory, magnetohydrodynamic theory, or any developments involving treatment of the Boltzmann equation are not included. This publication is intended for hypersonic aerodynamicists, students, and researchers conducting work on the hypersonic flow phenomena.

Hypersonic Inviscid Flow

Hypersonic Inviscid Flow PDF

Author: Wallace D. Hayes

Publisher: Courier Corporation

Published: 2012-07-13

Total Pages: 628

ISBN-13: 0486160483

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Unified, self-contained view of nonequilibrium effects, body geometries, and similitudes available in hypersonic flow and thin shock layer; appropriate for graduate-level courses in hypersonic flow theory. 1966 edition.

Blunt Body Theory for Hypersonic Flow

Blunt Body Theory for Hypersonic Flow PDF

Author: K. Hida

Publisher:

Published: 1961

Total Pages: 1

ISBN-13:

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A systematic analysis of Newtonian flow past an axi-symmetrical blunt body is developed by expanding various physical quantities in power series of lambda equals (gamma-1)/(gamma+1), where gamma stands for the ratio of specific heats of a gas. Some general results such as stand-off distance, pressure distribution along the axis of symmetry are given, provided that the shock is detached and has finite curvature at its nose. More extensive calculations are made for the flow past a flat-faced disc and power-law bodies. (Author).