The Free-Stream Boundaries of Turbulent Flows Page: 2 of 112
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TABLE OF CONTENTS
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SUMMARY . . . . . . . . . . . . . . . . . . . . . . .
INTRODUCTION .................
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6SYMBOLS . . . . . . . . . . . . . .. . . . . . . .. . . . . . .
EXPERIMENTAL EQUIPMENT AND PROCEDURES .
Aerodynamic Equipment ........
Hot-Wire Set . . .......
Measurement of Intermittency ....
Vorticity Fluctuations .......
Mean Velocity Profiles .......MEASUREMENTS ............ .......
Mean Velocity Fields .. . .......
Character of Fluctuations .............
Turbulence Levels .................
Turbulent Shear Stress ..............
Vorticity Fluctuation Level .............
Intermittency ......................
Statistical Analysis of On-Off Intermittency Signal
Schmitt Trigger) ........ .........a s o
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(Output
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. .THEORETICAL EXISTENCE OF TURBULENCE FRONT. . . . ........... a
Steepening of a Vorticity Gradient With Local Production of
Vorticity . . . .. ... a . . . ..........................
Laminar Super layer ........ ... . ....
Irrotationality and Reynolds Shear . ..........
THEORETICAL BEHAVIOR OF TURBULENCE FRONT . . . . . a
Wrinkling Rate .......... ...... . . ....
Propagation Velocity by Dimensional Reasoning .........
Model of Laminar Superlayer . . . ...... .....
Inference of Turbulence Properties From Intermittent Signal . .
APPLICATIONS TO PARTICULAR TURBULENT FLOWS . . . . . .
Rough-Wall Boundary Layer ...................
Two-Dimensional Wake ................ ..
Round Jet . . . . .... .. . ......... .
Intermittency and Measured Mean Quantities . . . . . ..
STATISTICAL DESCRIPTION OF TURBULENCE FRONT ....... ,
Probability Density of Y(t). .. . . . . . . ....
Probability Density of Pulse Lengths * . . ......... . .
Power Spectrum of Schmitt Trigger Output . . . . . . .
Autocorrelation Function of Y(t) . . . . . . .. ... . . . . . . . . . .
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Corrsin, Stanley & Kistler, Alan L. The Free-Stream Boundaries of Turbulent Flows, report, January 1954; (https://digital.library.unt.edu/ark:/67531/metadc57154/m1/2/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.