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25866

LDV IN HIGH ASPECT RATIO CURVED DUCTS WITH RECTANGULAR CROSS SECTION

Article

Last updated: 04 Jan 2025

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Abstract

Results of LDV measurments in the incompressible flow field inside two different curved ducts of C and S shapes are provided. Ducts are of high aspect ratio rectangular cross section intended for isolation of secondary flow effects . Measurments are performed using single component He-Ne forward scatter LDV system . The system operates in dual beam fringe mode with signal processing by counting. Mean streamwise velocity profiles and turbulence intensities are obtained at different streamwise locations together with several lateral traverses. Measurments are performed in conditions of moderately turbulent boundary layers on duct walls and manifested the curvature effects on internal flow and boundary layer behaviour. Lateral traverses indicated the presence of G8rtler vortex system expected on concave walls at such moderately turbulent Reynolds' number. Obtained results clarify the flow nature in curved ducts and help in setting and checking the relevant computational codes.

DOI

10.21608/asat.2019.25866

Authors

First Name

O.

Last Name

ABDELHAMID

MiddleName

E.

Affiliation

Professor and Chairman, Department of Aeronautical Engineering , MTC , Cairo , EGYPT .

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Orcid

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Volume

3

Article Issue

ASAT Conference 4-6 April 1989 , CAIRO

Related Issue

4687

Issue Date

1989-04-01

Receive Date

2019-01-23

Publish Date

2019-01-23

Page Start

73

Page End

83

Print ISSN

2090-0678

Online ISSN

2636-364X

Link

https://asat.journals.ekb.eg/article_25866.html

Detail API

https://asat.journals.ekb.eg/service?article_code=25866

Order

7

Type

Original Article

Type Code

737

Publication Type

Journal

Publication Title

International Conference on Aerospace Sciences and Aviation Technology

Publication Link

https://asat.journals.ekb.eg/

MainTitle

LDV IN HIGH ASPECT RATIO CURVED DUCTS WITH RECTANGULAR CROSS SECTION

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Article

Created At

22 Jan 2023