Generation of flow fields in particle fueled combustion systems Technical note no. 1
Dynamic properties of explosion in medium consisting of condensed phase fuel particles dispersed in gaseous oxidizer
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Dynamic properties of explosion in medium consisting of condensed phase fuel particles dispersed in gaseous oxidizer
Analytical methods for determination of trajectories, loads, and heating experienced by spacecraft passing through rocket exhaust field
Shear layer mixing, hydrocarbon oxidation, and carbon cloud radiation models for liquid rocket engine exhaust plume analysis
Radiative and convective heat transfer about two blunt bodies traveling at hypersonic speeds at zero angle of attack in assumed Mars atmosphere of nitrogen and carbon dioxide
Apollo telescopic experiment contamination by space vehicle exhaust products
Axisymmetric jet impingement against solid plane from tube at finite distance, using nonlinear partial differential equation in finite difference form
Wind tunnel tests of aerodynamic stability, boundary layer transition, and heat transfer in space shuttle orbiters
Viscous radiating flowfield coupled with ablation for computations on blunt body entering earth atmosphere at interplanetary return velocities
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A finite-difference machine code is brought to bear on the wake-vortex problem in the quasi-cylindrical boundary-layer approximation. A turbulent-energy model containing new features is developed. Parameters of the model are evaluated by comparison of calculated velocities and turbulent intensities with measurements in an axisymmetric wake. Comparisons are made with a previous calculation of the decay of an isolated vortex and with wind tunnel and flight measurements in trailing vortices. A self-similar solution develops at large axial distance that decays with the square root of distance. A slower decay occurs in the preceding transition region.
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A finite-difference machine code is brought to bear on the wake-vortex problem in the quasi-cylindrical boundary-layer approxmation. A turbulent-energy model containing new features is developed that accounts for the major effects disclosed by more advanced models in which the parameters are not yet established. Several puzzles are resolved that arose in previous theoretical investigations of wake vortices.
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An experimental investigation has been carried out in a wind tunnel to test some of the results of Landahl's second order theory. The slender models consisted of a parabolic spindle, tested at M = 3, and a wing body configuration, suggested by Ferri, and tested at M = 2.7. The theory indicates that shock position and strength at an arbitrary distance can be calculated by means of near field measurements. The results show that this method is an appropriate one for simple bodies and for bodies with complicated geometries as well.