Three-dimensional Laminar Boundary-layer Analysis of Upwash Patterns and Entrained Vortex Formation on Sharp Cones at Angle of Attack PDF Download
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Author: John C. Adams (Jr.)
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 124
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Book Description
Application of three-dimensional inviscid and viscous (laminar boundary layer) analyses for cold wall hypersonic flows over sharp cones at incidence is presented relative to experimental data, showing surface upwash angles and entrained vortex formation leading to crossflow-induced boundary-layer transition. Three-dimensional neutral inviscid stability theory for stationary disturbances is used to calculate the angular orientation of the entrained vortices in the boundary layer while a maximum crossflow Reynolds number concept is applied for correlation of the onset to vortex formation due to crossflow instability.
Author: John C. Adams (Jr.)
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 124
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Book Description
Application of three-dimensional inviscid and viscous (laminar boundary layer) analyses for cold wall hypersonic flows over sharp cones at incidence is presented relative to experimental data, showing surface upwash angles and entrained vortex formation leading to crossflow-induced boundary-layer transition. Three-dimensional neutral inviscid stability theory for stationary disturbances is used to calculate the angular orientation of the entrained vortices in the boundary layer while a maximum crossflow Reynolds number concept is applied for correlation of the onset to vortex formation due to crossflow instability.
Author: John C. Adams
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 98
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Book Description
An analytical approach toward numerical calculation of the three-dimensional turbulent boundary layer on a sharp cone at incidence under supersonic and hypersonic flow conditions is presented. The theoretical model is based on implicit finite-difference integration of the governing three-dimensional turbulent boundary-layer equations in conjunction with a three-dimensional scalar eddy-viscosity model of turbulence. Comparison is made of present theory with detailed experimental measurements of the three-dimensional turbulent boundary-layer structure (velocity and temperature profiles), the surface streamline direction (obtained via an oil-flow technique) and surface heat-transfer rate.
Author: Arloe Wesley Mayne (Jr.)
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 114
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 724
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Book Description
Author: Wilbur L. Hankey
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 20
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Book Description
This report reviews the progress over the last decade on separated flows conducted at these laboratories. Experimental investigations conducted in the hypersonic wind tunnels is discussed. Advancements are summarized in the theoretical area which cover the development of interacting boundary layers to the numerical computation of the complete Navier-Stokes equations.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1282
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Dennis M. Bushnell
Publisher:
ISBN:
Category : Compressibility
Languages : en
Pages : 156
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Book Description
Author: Francis J. Marshall
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 528
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Book Description
Author: North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Fluid Dynamics Panel
Publisher:
ISBN:
Category : Boundary value problems
Languages : en
Pages : 210
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Book Description
Presents the recent developments in the numerical approach of fluid flow problems. Particular emphasis placed on numerical techniques for the solution of the compressible Navier-Stokes equations and the implementation of turbulence models, the computational techniques for boundary layers, hyperbolic partial differential equations, numerical stability of finite difference methods, numerical solutions of the Navier-Stokes equations for compressible fluids, and finite elements.--abs., report documentary page.
Author: Hypersonic Research Laboratory (U.S.)
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 74
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Book Description
