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primary topic: Flow characteristics of 3-D turning diffuser using particle image velocimetry

Flow characteristics of 3-D turning diffuser using particle image velocimetry
type: AcademicArticle
type: Article
abstract: It is often necessary in fluid flow systems to simultaneously decelerate and turn the flow. This can be achieved by employing turning diffusers in the fluid flow systems. The flow through a turning diffuser is complex, apparently due to the expansion and inflexion introduced along the direction of flow. The flow characteristics of 3-D turning diffuser by means of varying inflow Reynolds number are presently investigated. The flow characteristics within the outlet cross-section and longitudinal section were examined respectively by the 3-D stereoscopic PIV and 2-D PIV. The flow uniformity is affected with the increase of inflow Reynolds number due to the dispersion of the core flow throughout the outlet cross-section. It becomes even worse with the presence of secondary flow, 22 to 27 of the mean outlet velocity. The flow separation takes place within the inner wall region at the point very close to the outlet edge and the secondary flow vortex occurs dominantly within half part of the outlet cross-section. © 2017 Author(s).
date: 2017
volume: 1831
is part of: AIP Conference Proceedings
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ConferenceItemEPrint
is part of: repository

American Institute of Physics Inc.
type: Organization

AIP Conference Proceedings
type: Collection
issn: 0094243X

A. Hariri
type: Person
given name: A.
family name: Hariri

S.M. Basharie
type: Person
given name: S.M.
family name: Basharie

S. Othman
type: Person
given name: S.
family name: Othman

V.R. Raghavan
type: Person
given name: V.R.
family name: Raghavan

Z.A.A. Karim
type: Person
given name: Z.A.A.
family name: Karim

N. Nordin
type: Person
given name: N.
family name: Nordin

M.F.M. Batcha
type: Person
given name: M.F.M.
family name: Batcha

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primary topic: Flow characteristics of 3-D turning diffuser using particle image velocimetry