Analytic Determination of Two-dimensional Supersonic Nozzle Contours Having Continuous Curvature PDF Download
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Author: James C. Sivells Publisher: ISBN: Category : Curvature Languages : en Pages : 29
Book Description
An analytic method is presented for determining the contours of two-dimensional supersonic nozzles having continuous curvature. The continuity of curvature is necessary for flexible-plate type nozzles inasmuch as the aerodynamic contour must be such that it can be closely simulated by the elastic curve of the flexible plate. The method described is more accurate and less time consuming than the characteristics method of obtaining contours. The assumption is made that radial flow can be obtained at the inflection point through the use of a simple polynomial for the initial part of the contour. This radial flow is converted to parrallel flow at the test section Mach number as described herein.
Author: James C. Sivells Publisher: ISBN: Category : Curvature Languages : en Pages : 29
Book Description
An analytic method is presented for determining the contours of two-dimensional supersonic nozzles having continuous curvature. The continuity of curvature is necessary for flexible-plate type nozzles inasmuch as the aerodynamic contour must be such that it can be closely simulated by the elastic curve of the flexible plate. The method described is more accurate and less time consuming than the characteristics method of obtaining contours. The assumption is made that radial flow can be obtained at the inflection point through the use of a simple polynomial for the initial part of the contour. This radial flow is converted to parrallel flow at the test section Mach number as described herein.
Author: James Joe Der Publisher: ISBN: Category : Aerodynamics, Supersonic Languages : en Pages : 64
Book Description
Chemical and vibrational nonequilibrium phenomena in steady inviscid flow fields are studied by the analysis of flow past curved boundaries. Possible alternative choices of the state variables to be used are considered. General features of the nonequilibrium flow are studied by examination of the mathematical properties of the nonlinear flow equations. An axisymmetric nonequilibrium flow of air through a supersonic nozzle is analyzed by means of numerical computations. The coupling effects between nonuniformity (across a nozzle section) and nonequilibrium, not taken into account in the quasi-one-dimensional flow approximation, are revealed by the present analysis.
Author: John C. Evvard Publisher: ISBN: Category : Supersonic nozzles Languages : en Pages : 8
Book Description
Auxiliary boundary condtions were derived to assure continuity of wall curvature in applying the method of characteristics to the design of two-dimensional supersonic nozzles.
Author: Allan R. Bishop Publisher: ISBN: Category : Aerodynamics, Supersonic Languages : en Pages : 28
Book Description
A computer program previously developed to analyze three-dimensional supersonic nozzles by the method of characteristics has been modified to study less restrictive nozzle geometries and nonuniform inlet conditions. An example indicates that a one-dimensional calculation that uses an averaged initial profile may be significantly in error. A comparison between the analysis and the data from a three-dimensional experiment shows generally good agreement between the two.
Author: Stefan Bergman Publisher: ISBN: Category : Aerodynamics, Supersonic Languages : en Pages : 56
Book Description
In previous reports by the author, the method of operators has been applied to investigation of two-dimensional flow patterns of an ideal compressible fluid, mostly in the subsonic case. Using a similar approach in the present paper, the author defines two different operators which generate supersonic two-dimensional flow patterns from differentiable functions of one real variable. (An operator is any rul by means of which one function is converted into another.) Since operators of the type considered preserve many properties of the functions to which they are applied and since the theory of functions of one real variable is more extensively developed than that of solutions of the compressibility equations, the results can be used as a basis for investigation of supersonic flow patterns.
Author: James C. Sivells
Author: James C. Sivells
Author: H.P. Liepman
Author: 
Author: James Joe Der
Author: Stephen W. D. Wolf
Author: HANS PETER LIEPMAN
Author: John C. Evvard
Author: 
Author: Allan R. Bishop
Author: Stefan Bergman