Turbulent Boundary-layer Velocity Profiles on a Nonadiabatic Flat Plate at Mach Number 6.5

Turbulent Boundary-layer Velocity Profiles on a Nonadiabatic Flat Plate at Mach Number 6.5

Author: Earl R. Keener

Publisher:

Published: 1972

Total Pages: 60

ISBN-13:

DOWNLOAD EBOOK

Velocity profiles were obtained from pitot-pressure and total-temperature measurements within a turbulent boundary layer on a large sharp-edged flat plate. Momentum-thickness Reynolds number ranged from 2590 to 8860 and wall-to-adiabatic-wall temperature ratios ranged from 0.3 to 0.5. Measurements were made both with and without boundary layer trips. Five methods are evaluated for correlating the measured velocity profiles with the incompressible law-of-the-wall and the velocity defect law. The mixing-length generalization of Van Driest gives the best correlation.


An Analytical Investigation of the Flat Plate Turbulent Boundary Layer in Compressible Flow

An Analytical Investigation of the Flat Plate Turbulent Boundary Layer in Compressible Flow

Author: Neal Tetervin

Publisher:

Published: 1967

Total Pages: 168

ISBN-13:

DOWNLOAD EBOOK

The concepts of eddy kinematic viscosity and eddy diffusivity are used to calculate skin friction and heat transfer coefficients for the turbulent boundary layer on a flat plate. The eddy kinematic viscosity, eddy diffusivity, and turbulent Prandtl number vary across the boundary layer. The Mach number range is from zero to ten. The surface to stream temperature ratio varies from one-half to eight, and includes the insulated surface. The friction results are compared with experimental data. Velocity and temperature profiles for the entire region from the surface to the outer edge are compared with experimental data. (Author).


Analysis of Turbulent Free-convection Boundary Layer on Flat Plate

Analysis of Turbulent Free-convection Boundary Layer on Flat Plate

Author: Ernst Rudolf Georg Eckert

Publisher:

Published: 1950

Total Pages: 30

ISBN-13:

DOWNLOAD EBOOK

A calculation was made for the flow and heat transfer in the turbulent free-convection boundary layer on a vertical flat plate. Formulas for the heat transfer coefficient, boundary layer thickness, and the maximum velocity in the boundary layer were obtained.


Analytical, Numerical, and Experimental Results on Turbulent Boundary Layers

Analytical, Numerical, and Experimental Results on Turbulent Boundary Layers

Author: David L. Whitfield

Publisher:

Published: 1976

Total Pages: 108

ISBN-13:

DOWNLOAD EBOOK

This report describes the results of analytical, numerical, and experimental investigations of incompressible and compressible boundary layers. The subjects considered are (1) Laminar and/or turbulent numerical boundary-layer calculations in which the Reynolds stress is related to the turbulent kinetic energy; (2) an analytical investigation of turbulence near a wall which is not founded on classical mixing-length theory; (3) analytical solutions for relating velocity and temperature throughout turbulent boundary layers for nonunity Prandtl numbers; (4) a description of the data reduction of pitot pressure measurements utilizing these analytical results, and (5) the application of the numerical and analytical results to the analysis of turbulent boundary-layer measurements made in the Propulsion Wind Tunnel Facility (PWT).