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147934

Space/Time Analysis of Pressure Fluctuations under Spanwise and Conical Vortices.

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Mechanical Power Engineering

Abstract

Local wavenumber/frequency spectra of pressure fluctuations associated with two types of vortex separation over a prison are examined the first vortex is a span wise vortex is a conceal vortex formed by the separation of a flow at 45oto two sides of the prison the technique used to estimate the wavenumber frequency spectra uses pressure measurements from twolap3, for the span wise vortex, the measurements show that low frequencies and small wavenumbers dominate the pressure fluctuations. Further downstream, the energy is reduced and distributed to a wide range of frequencies and wavenumbers. As for the conical vortex, most of the energy is confined to low frequencies and wavenumbers. Wavenumbers spectra for the pressure fluctuations are also presented. The technique used to estimate the wavenumber, frequency spectra is cable to give the vortex formation, is energy distribution and vortex breakdown is space and time.

DOI

10.21608/bfemu.1999.147934

Authors

First Name

Nabil

Last Name

Mostafa

MiddleName

H.

Affiliation

Department of Mechanical Power Engineering., Faculty of Engineering., Zagazig University., Zagazig., Egypt.

Email

nmostafa@vt.deu

City

Zagazig

Orcid

-

Volume

24

Article Issue

3

Related Issue

21259

Issue Date

1999-09-01

Receive Date

1999-05-11

Publish Date

2020-09-01

Page Start

1

Page End

13

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 24_Issue 3_Pages 1-13.pdf

PDF . 175.9kB

Link

https://bfemu.journals.ekb.eg/article_147934.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=147934

Order

1

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

Space/Time Analysis of Pressure Fluctuations under Spanwise and Conical Vortices.

Details

Type

Article

Created At

22 Jan 2023