Calculation of the Boundary-layer Flow in the Windward Symmetry Plane of a Spherically Blunted Axisymmetric Body at Angle of Attack, Including Streamline-swallowing Effects

Calculation of the Boundary-layer Flow in the Windward Symmetry Plane of a Spherically Blunted Axisymmetric Body at Angle of Attack, Including Streamline-swallowing Effects
Author: Arloe W. Mayne (Jr.)
Publisher:
Total Pages: 60
Release: 1973
Genre: Aerodynamics, Hypersonic
ISBN:

Three-dimensional compressible boundary-layer equations are particularized to the windward symmetry plane of a spherically blunted axisymmetric body at incidence under hypersonic conditions. Through the use eddy transport and streamwise intermittency both transitional and fully turbulent boundary layers may be treated. A scheme is presented for determining the outer-edge boundary conditions based on a mass flow balance treatment of the boundary-layer entrainment of the inviscid flow. A finite-difference technique is described for solving the set of partial differential equation governing the boundary-layer flow, and for treating the streamline-swallowing phenomenon.

Roll-damping Derivative Calculations for Spinning Sharp and Blunt Cones in Supersonic and Hypersonic Flow

Roll-damping Derivative Calculations for Spinning Sharp and Blunt Cones in Supersonic and Hypersonic Flow
Author: Arloe W. Mayne (Jr.)
Publisher:
Total Pages: 28
Release: 1979
Genre: Cone
ISBN:

The boundary-layer equations in a Crocco variables form have been numerically solved for flow over spinning sharp and blunt cones at zero incidence to supersonic and hypersonic streams. Both laminar and turbulent flows have been treated, and for the blunt cases swallowing of the inviscid entropy layer by the boundary layer has been considered. The item of primary interest is roll damping, and results of a parametric study involving Mach number, Reynolds number, cone angle, and bluntness ratio are presented. Limited comparisons with experimental data and another method of computation are also presented. (Author).

Computational Methods for Inviscid and Viscous Two-and-three-dimensional Flow Fields

Computational Methods for Inviscid and Viscous Two-and-three-dimensional Flow Fields
Author: North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Fluid Dynamics Panel
Publisher:
Total Pages: 210
Release: 1975
Genre: Boundary value problems
ISBN:

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.