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Turbulent Flow in a Three-Dimensional Channel
The results of tests to define the Reynolds stress tensor in one corner of a straight, smooth, closed conduit of rectangular cross section were presented. The measurements are used in conjunction with a simplified version of the equations of motion to conclude that secondary motions will be present in any established flow in a conduit of noncircular section. One of the boundaries may be a free surface. The sustaining mechanism for the secondary motion is shown to depend on the horizontal and vertical components of the turbulent motion. A physical justification for the measured behavior of these components is obtainable from the consideration that the magnitude of a velocity fluctuation normal to a boundary is inhibited by proximity to the boundary, whereas a similar restriction on the component parallel to the boundary does not exist. Direct measurements of the secondary motions were obtained.
Turbulent Flow in a Three-Dimensional Channel
The results of tests to define the Reynolds stress tensor in one corner of a straight, smooth, closed conduit of rectangular cross section were presented. The measurements are used in conjunction with a simplified version of the equations of motion to conclude that secondary motions will be present in any established flow in a conduit of noncircular section. One of the boundaries may be a free surface. The sustaining mechanism for the secondary motion is shown to depend on the horizontal and vertical components of the turbulent motion. A physical justification for the measured behavior of these components is obtainable from the consideration that the magnitude of a velocity fluctuation normal to a boundary is inhibited by proximity to the boundary, whereas a similar restriction on the component parallel to the boundary does not exist. Direct measurements of the secondary motions were obtained.
Turbulent Flow in a Three-Dimensional Channel
Tracy, Hubert J. (Autor:in)
Journal of the Hydraulics Division ; 91 ; 9-35
01.01.2021
271965-01-01 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Turbulent flow in three-dimensional channel
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