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106984

Characteristics of Flow and Heat Transfer in Horizontal Channel with Mounted Rectangular Cross Section Bars.

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Mechanical Power Engineering

Abstract

Experimental and Numerical investigation in fluid flow and heat transfer have been carried out to study the effect of blockage ratio (d/H) and aspect ratio ((c/d) due to free separation around rectangular bars. The turbulent flow and forced convection heat transfer characteristics for an incompressible and steady flow past rectangular bars were carried out. The Reynolds numbers was varied from 1.5x104 up to 3.5x104, blockage ratios of 0.167, 0.133, 0.1 and 0.067, aspects of 1, 1.25, 1.67 and 2.5 and input power of 41.4, 53.16 and 66.4w. The velocity profiles and forced convection heat transfer coefficient were predicted numerically using Fluent code. The two equations of turbulence model (RNG K-Epsilon) were employed in this investigation. The experimental results showed that Nusselt number is strongly affected by both blockage ration and Reynolds number. Nusselt number was not strongly affected by the power (heat flux). The experimental results also showed that the velocity distribution behind the bars is affected by blockage ratio, aspect ratio and Reynolds number. The numerical and experimental results of the present work were compared with available literature data and showed good agreement

DOI

10.21608/bfemu.2020.106984

Keywords

turbulent flow, heat transfer, Aspects Ratio, Blockage Ratio, Cross Bars

Authors

First Name

M.

Last Name

Mohamed

MiddleName

Safwat

Affiliation

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

Email

msafwat@mans.edu.eg

City

-

Orcid

-

First Name

Elsayed

Last Name

Elshafei

MiddleName

A. M.

Affiliation

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

Email

eelshafei@mans.edu.eg

City

-

Orcid

-

First Name

Hamada

Last Name

Yousef

MiddleName

A.

Affiliation

M. Sc. Student Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt

Email

hamada_wes@yahoo.com

City

-

Orcid

-

Volume

38

Article Issue

3

Related Issue

16051

Issue Date

2013-09-01

Receive Date

2013-08-10

Publish Date

2020-08-10

Page Start

1

Page End

23

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 38_Issue 3_Pages 1-23.pdf

PDF . 604.3kB

Link

https://bfemu.journals.ekb.eg/article_106984.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=106984

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

Characteristics of Flow and Heat Transfer in Horizontal Channel with Mounted Rectangular Cross Section Bars.

Details

Type

Article

Created At

22 Jan 2023