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181754

An Investigation of some Turbulent Boundary Layer Parameters.

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Mechanical Power Engineering

Abstract

In turbulent boundary layer problems, the velocity defect law suggested by Coles consists of two-universal functions; the law of the wall and the law of the wake. This defect law agrees very well with experiments for turbulent boundary layers, only at momentum Reynolds number Re ẟӿӿ> 6000. 
In the present work the wake function is modified to satisfy in such away simulatanously the normalizing conditions stated by Coles and the variation in the empirical constant & with Re ẟӿӿ  (without any restrictions) and the velocity profile parameter P. 
The new modification in ﬡand wake functions provides the possibility of studying the velocity profile and the different parameters controlling the behaviour of the turbulent boundary layer efficiently. 
 

DOI

10.21608/bfemu.2021.181754

Authors

First Name

Samir

Last Name

Hanna

MiddleName

F.

Affiliation

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

Email

-

City

Mansoura

Orcid

-

First Name

Mohamed

Last Name

Saad El-Deen

MiddleName

S.

Affiliation

Mechanical Power engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

Email

-

City

Mansoura

Orcid

-

First Name

Rashad

Last Name

El-Badrawy

MiddleName

M.

Affiliation

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

Email

-

City

Mansoura

Orcid

-

Volume

6

Article Issue

1

Related Issue

26180

Issue Date

1981-06-01

Receive Date

1981-04-16

Publish Date

1981-06-01

Page Start

138

Page End

158

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 6_Issue 1_Pages 138-158.pdf

PDF . 2.2MB

Link

https://bfemu.journals.ekb.eg/article_181754.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=181754

Order

10

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

An Investigation of some Turbulent Boundary Layer Parameters.

Details

Type

Article

Created At

22 Jan 2023