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| Reverse flow in a square duct with an obstruction at the entry
Chang-Hyun Sohn/B. H. Lakshmana Gowda/Myong-Gun Ju
The Journal of Mechanical Science and Technology, vol. 23, no. 9, pp.2376-2389, 2009
Abstract : In this paper, the reverse flow in a square duct with an obstruction at the front (which is a square plate), is investigated
using particle image velocimetry (PIV). The gap g between the obstruction and the entry to the duct was systematically
varied, and it was found that maximum reverse flow occurs around a g/w value of 0.75. The velocity vectors,
vorticity plots, and other details described indicate that the flow field is different compared with the two-dimensional
channel case.
Keyword : Reverse flow; Square duct; Obstruction; Shear layers; PIV |
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