Reverse flow in a square duct with an obstruction at the entry

Chang Hyun Sohn; B. H.Lakshmana Gowda; Myong Gun Ju

doi:10.1007/s12206-009-0628-5

Reverse flow in a square duct with an obstruction at the entry

Chang Hyun Sohn
, B. H.Lakshmana Gowda
, Myong Gun Ju

School of Mechanical Engineering

Kyungpook National University

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

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.

Original language	English
Pages (from-to)	2376-2389
Number of pages	14
Journal	Journal of Mechanical Science and Technology
Volume	23
Issue number	9
DOIs	https://doi.org/10.1007/s12206-009-0628-5
State	Published - Sep 2009

Keywords

Obstruction
PIV
Reverse flow
Shear layers
Square duct

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10.1007/s12206-009-0628-5

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title = "Reverse flow in a square duct with an obstruction at the entry",

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.",

keywords = "Obstruction, PIV, Reverse flow, Shear layers, Square duct",

author = "Sohn, \{Chang Hyun\} and Gowda, \{B. H.Lakshmana\} and Ju, \{Myong Gun\}",

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AU - Sohn, Chang Hyun

AU - Gowda, B. H.Lakshmana

AU - Ju, Myong Gun

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N2 - 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.

AB - 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.

KW - Obstruction

KW - PIV

KW - Reverse flow

KW - Shear layers

KW - Square duct

UR - https://www.scopus.com/pages/publications/70349694258

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EP - 2389

JO - Journal of Mechanical Science and Technology

JF - Journal of Mechanical Science and Technology

IS - 9

ER -

Reverse flow in a square duct with an obstruction at the entry

Abstract

Keywords

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