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166351

Natural Convection Heat Transfer in Partially Divided Vertical Enclosures with Adiabatic End Walls.

Article

Last updated: 04 Jan 2025

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Tags

Mechanical Power Engineering

Abstract

 A numerical study has been carried on natural convection, which occurs in building enclosures, with perfectly adiabatic horizontal end wails and finitely adiabatic baffles extending from the ceiling of the enclosures. The results have been obtained for the air-filled (Pr = 0.71) and for water-filled (Pr = 3.7) enclosures with isothermal hot and cold walls. The flow is considered to be two dimensional, laminar and steady. During the couse of this work Rayleigh number has a value varies between 104 to 107 and the aspect ratio of the enclosure has two values (A = 1 and 1/2), and the aperture ratio has three value (Ap < /sub> = 3/4, 1/2 and 1/4). The effect of the aspect ratio and the effect of the aperture ratio on the heat transfer and the natural convection flow are discussed. Allow Rayleigh separation bubble increases while the strength of the main flow decreases with the decrease of the aperture ratio. The average Nusselt number for the enclosure is significantly smallar in the presence of the baffles. 

DOI

10.21608/bfemu.2021.166351

Authors

First Name

Mohamed

Last Name

Shalaby

MiddleName

Ali Ibrahim

Affiliation

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

Email

-

City

Mansoura

Orcid

-

First Name

A.

Last Name

Shaheen

MiddleName

S.

Affiliation

Physical Science Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

Email

-

City

Mansoura

Orcid

-

First Name

A.

Last Name

El-Sedeek

MiddleName

-

Affiliation

Physical Science Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

Email

-

City

Mansoura

Orcid

-

Volume

18

Article Issue

4

Related Issue

24036

Issue Date

1993-12-01

Receive Date

1993-10-11

Publish Date

2021-12-01

Page Start

1

Page End

11

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 18_Issue 4_Pages 1-11.pdf

PDF . 310.2kB

Link

https://bfemu.journals.ekb.eg/article_166351.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=166351

Order

9

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

Natural Convection Heat Transfer in Partially Divided Vertical Enclosures with Adiabatic End Walls.

Details

Type

Article

Created At

22 Jan 2023