Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 110
Book Description
Calculation of Turbulent Boundary Layers with Heat Transfer and Pressure Gradient Utilizing a Compressibility Transformation. Part 3: Computer Program Manual
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 110
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 110
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702
Book Description
Calculation of Turbulent Boundary Layers with Heat Transfer and Pressure Gradient Utilizing a Compressibility Transformation
Author: J. Schneider
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 106
Book Description
A computer program is described capable of determining the properties of a compressible turbulent boundary layer with pressure gradient and heat transfer. The program treats the two-dimensional problem assuming perfect gas and Crocco integral energy solution. A compressibility transformation is applied to the equation for the conservation of mass and momentum, which relates this flow to a low speed constant property flow with simultaneous mass transfer and pressure gradient. The resulting system of describing equations consists of eight ordinary differential equations which are solved numerically. For Part 1, see N72-12226; for Part 2, see N72-15264.
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 106
Book Description
A computer program is described capable of determining the properties of a compressible turbulent boundary layer with pressure gradient and heat transfer. The program treats the two-dimensional problem assuming perfect gas and Crocco integral energy solution. A compressibility transformation is applied to the equation for the conservation of mass and momentum, which relates this flow to a low speed constant property flow with simultaneous mass transfer and pressure gradient. The resulting system of describing equations consists of eight ordinary differential equations which are solved numerically. For Part 1, see N72-12226; for Part 2, see N72-15264.
An Investigation of the High Speed Turbulent Boundary Layer with Heat Transfer and Arbitrary Pressure Gradient. Part 3 - Computer Program Manual
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 100
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 100
Book Description
Analysis of Variable Property Turbulent Boundary Layers by Means of a Modified Compressibility Transformation
Author: C. Economos
Publisher:
ISBN:
Category : Transformations (Mathematics)
Languages : en
Pages : 92
Book Description
A generalized form of the Coles compressibility transformation is utilized to analyze compressible turbulent boundary-layer flows. The generalization in the transformation is distinguished by specifying a stretching parameter that depends upon both space variables rather than on only the streamwise coordinate. This modification is shown to eliminate the distortion observed in the wake region of the transformed velocity profiles. For zero pressure gradient flows, predictions based upon the analysis are consistently superior with predictions due to Spalding-Chi and Baronti-Libby. A wide range of experimental data have been examined with Mach numbers ranging as high as 8, wall to free stream total temperature ratios as low as 0.25 and momentum thickness Reynolds numbers up to approximately one million.
Publisher:
ISBN:
Category : Transformations (Mathematics)
Languages : en
Pages : 92
Book Description
A generalized form of the Coles compressibility transformation is utilized to analyze compressible turbulent boundary-layer flows. The generalization in the transformation is distinguished by specifying a stretching parameter that depends upon both space variables rather than on only the streamwise coordinate. This modification is shown to eliminate the distortion observed in the wake region of the transformed velocity profiles. For zero pressure gradient flows, predictions based upon the analysis are consistently superior with predictions due to Spalding-Chi and Baronti-Libby. A wide range of experimental data have been examined with Mach numbers ranging as high as 8, wall to free stream total temperature ratios as low as 0.25 and momentum thickness Reynolds numbers up to approximately one million.
CPST
Author:
Publisher:
ISBN:
Category : Computer programming
Languages : en
Pages : 530
Book Description
Publisher:
ISBN:
Category : Computer programming
Languages : en
Pages : 530
Book Description
Experimental Investigation of a 4 1/2-stage Turbine with Very High Stage Loading Factor
Author:
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 1092
Book Description
The results of the Task 1 and 2 turbine design work are reported. Preliminary design is discussed. Blading detailed design data are summarized. Predicted performance maps are presented. Steady-state stresses and vibratory behavior are discussed, and the results of the mechanical design analysis are presented. -- [V]. I The experimental test program results of a 4 1/2-stage turbine with a very high stage loading factor are presented. A four-stage turbine was tested with and without outlet turning vanes. The 4 1/2-stage turbine achieved a design point total-to-total efficiency of 0.853. The outlet turning vane design point performance was 0.4 percent of the overall 4 1/2-stage turbine efficiency. Tests were conducted at various levels of Reynolds number and indicated decreases in turbine efficiency and equivalent weight flow with decreasing Reynolds number. --[V]. II.
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 1092
Book Description
The results of the Task 1 and 2 turbine design work are reported. Preliminary design is discussed. Blading detailed design data are summarized. Predicted performance maps are presented. Steady-state stresses and vibratory behavior are discussed, and the results of the mechanical design analysis are presented. -- [V]. I The experimental test program results of a 4 1/2-stage turbine with a very high stage loading factor are presented. A four-stage turbine was tested with and without outlet turning vanes. The 4 1/2-stage turbine achieved a design point total-to-total efficiency of 0.853. The outlet turning vane design point performance was 0.4 percent of the overall 4 1/2-stage turbine efficiency. Tests were conducted at various levels of Reynolds number and indicated decreases in turbine efficiency and equivalent weight flow with decreasing Reynolds number. --[V]. II.
Monthly Catalogue, United States Public Documents
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 978
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 978
Book Description
NASA Contractor Report
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1270
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1270
Book Description
Government Reports Index
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1074
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1074
Book Description