LDV Measurements of the Response of the Swirling Turbulent Flow in a Pipe to a Rapid Temporal Change in Swirl |
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Authors: | Holger Kocherscheidt Maren Schmidts Venkatesa I Vasanta Ram |
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Institution: | 1. Institut für Thermo- und Fluiddynamik, Ruhr Universit?t Bochum, D-44780, Bochum, Germany
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Abstract: | The present paper describes an experiment to study the response of the swirling flow in a pipe at a high Reynolds number to
a rapid temporal change in swirl. The measurements have been conducted with 3D-LDV in a facility of special design that operates
on the principle of refractive-index matching and in which swirl is generated in the flow by a tube-bundle in the pipe rotating
about its own axis. The temporal change in swirl is effected by a computer controlled change of the angular velocity of the
swirl generator. Measurement data from both cases, of increase and decrease of swirl, are presented.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | 3D-LDV temporal response unsteady swirling flow |
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