Experimental and Numerical Investigation of Flows in Expanding Channels

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We present an experimental realization of the classical Jeffery-Hamel flows inside a wedge-shaped channel. We compare the measured velocity fields with the predictions of Jeffery-Hamel theory. A detailed experimental study of bifurcation diagrams for the solutions reveals the absolute stability of the pure outflow solution and an interesting hysteretic structure for bifurcations. We also observe a multiple vortex flow regime predicted earlier numerically and analytically. Experimental studies of the stability of the flow to perturbations at the channel exit are also conducted.

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Vorobieff, Peter & Putkaradze, Vakhtang October 24, 2008.

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We present an experimental realization of the classical Jeffery-Hamel flows inside a wedge-shaped channel. We compare the measured velocity fields with the predictions of Jeffery-Hamel theory. A detailed experimental study of bifurcation diagrams for the solutions reveals the absolute stability of the pure outflow solution and an interesting hysteretic structure for bifurcations. We also observe a multiple vortex flow regime predicted earlier numerically and analytically. Experimental studies of the stability of the flow to perturbations at the channel exit are also conducted.

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500 kB

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  • Report No.: DOE/ER/46119-3 Final Report
  • Grant Number: FG02-04ER46119
  • DOI: 10.2172/941482 | External Link
  • Office of Scientific & Technical Information Report Number: 941482
  • Archival Resource Key: ark:/67531/metadc899664

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  • October 24, 2008

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Sept. 21, 2017, 10:05 p.m.

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Vorobieff, Peter & Putkaradze, Vakhtang. Experimental and Numerical Investigation of Flows in Expanding Channels, report, October 24, 2008; United States. (digital.library.unt.edu/ark:/67531/metadc899664/: accessed December 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.