Author: George J. Nothwang
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 11
Book Description
Surveys were made through a turbulent boundary layer on a flat plate by means of a pitot probe, an X-ray densitometer, aud hot-wire and coldwire probes. Results from these surveys were analyzed to determine (a) the reliability of the basic data and hence the methods by which they were obtained, and (b) how well the actual distributions of properties in the boundary layer compare,with those commonly assumed in semiempirical and theoretical analyses. All surveys were made at the same longitudinal station on the flat plate. The tests were conducted in an 8- by 8-inch supersonic nozzle. The free-stream Mach number was 3.03 and the Reynolds number was approximately 210,000 based on boundary-layer thickness.
An Evaluation of Four Experimental Methods for Measuring Mean Properties of a Supersonic Turbulent Boundary Layer
Author: George J. Nothwang
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 11
Book Description
Surveys were made through a turbulent boundary layer on a flat plate by means of a pitot probe, an X-ray densitometer, aud hot-wire and coldwire probes. Results from these surveys were analyzed to determine (a) the reliability of the basic data and hence the methods by which they were obtained, and (b) how well the actual distributions of properties in the boundary layer compare,with those commonly assumed in semiempirical and theoretical analyses. All surveys were made at the same longitudinal station on the flat plate. The tests were conducted in an 8- by 8-inch supersonic nozzle. The free-stream Mach number was 3.03 and the Reynolds number was approximately 210,000 based on boundary-layer thickness.
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 11
Book Description
Surveys were made through a turbulent boundary layer on a flat plate by means of a pitot probe, an X-ray densitometer, aud hot-wire and coldwire probes. Results from these surveys were analyzed to determine (a) the reliability of the basic data and hence the methods by which they were obtained, and (b) how well the actual distributions of properties in the boundary layer compare,with those commonly assumed in semiempirical and theoretical analyses. All surveys were made at the same longitudinal station on the flat plate. The tests were conducted in an 8- by 8-inch supersonic nozzle. The free-stream Mach number was 3.03 and the Reynolds number was approximately 210,000 based on boundary-layer thickness.
Technical Note - National Advisory Committee for Aeronautics
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 470
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 470
Book Description
Report
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 24
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 24
Book Description
NASA Technical Note
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 542
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 542
Book Description
A Selected Listing of NASA Scientific and Technical Reports for ...
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 818
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 818
Book Description
Index of NACA Technical Publications
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 388
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 388
Book Description
Torsional Stiffness of Thin-walled Shells Having Reinforcing Cores and Rectangular, Triangular, Or Diamond Cross Section
Author: Alberta Y. Alksne
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 338
Book Description
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 338
Book Description
Report
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 900
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 900
Book Description
The Flow Field Over Blunted Flat Plates and Its Effect on Turbulent Boundary-layer Growth and Heat Transfer at a Mach Number of 4.7
Author: Thorval Tendeland
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 64
Book Description
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 64
Book Description
Expected Number of Maxima and Minima of a Stationary Random Process with Non-Gaussian Frequency Distribution
Author: Franklin W. Diederich
Publisher:
ISBN:
Category : Distribution (Probability theory)
Languages : en
Pages : 734
Book Description
A method is outlined for calculating the expected number of maxima or minima of a random process with non-Gaussian frequency distribution from the statistical moments of the process and its first two derivatives. This method is based on an estimate of the joint frequency function of the process and its first two derivatives given by mesm of a generalized form of Edgeworth's series; the procedure thus consists essentially in applying a correction to the results for a Gaussian process. The functions required in this procedure are calculated for the first two correction terms; therefore, the effects of skewness and kurtosis can be calculated, provided the required moments are known. Expressions are given for these moments in terms of multiple correlation functions and multi-spectra, and the relations between these functions for a random output of a linear system and those for the random input are indicated.
Publisher:
ISBN:
Category : Distribution (Probability theory)
Languages : en
Pages : 734
Book Description
A method is outlined for calculating the expected number of maxima or minima of a random process with non-Gaussian frequency distribution from the statistical moments of the process and its first two derivatives. This method is based on an estimate of the joint frequency function of the process and its first two derivatives given by mesm of a generalized form of Edgeworth's series; the procedure thus consists essentially in applying a correction to the results for a Gaussian process. The functions required in this procedure are calculated for the first two correction terms; therefore, the effects of skewness and kurtosis can be calculated, provided the required moments are known. Expressions are given for these moments in terms of multiple correlation functions and multi-spectra, and the relations between these functions for a random output of a linear system and those for the random input are indicated.