Computational investigations have been performed into the behavior of an incompressible fluid flow in the vicinity of a plane symmetric channel contraction. Our aim is to determine the critical Reynolds number, above which the flow becomes asymmetric with respect to the channel geometry using the bifurcation diagram. Three channels, which are characterized by the contraction ratio, are studied and the critical Reynolds numbers are determined as 3075, 1355, and 1100 for channels with contraction ratios of 2, 4, and 8, respectively. The cause and mechanism explaining the transition from symmetric to asymmetric states in the symmetric contraction channel are also provided.
Bifurcations of Flow Through Plane Symmetric Channel Contraction
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division March 16, 1999; revised manuscript received November 7, 2001. Associate Editor: U. Ghia.
Chiang , T. P., and Sheu, T. W. H. (May 28, 2002). "Bifurcations of Flow Through Plane Symmetric Channel Contraction ." ASME. J. Fluids Eng. June 2002; 124(2): 444–451. https://doi.org/10.1115/1.1467643
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