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188869

Heat Transfer to Laminar Flow across a Flat Plate Subjected to a Periodic Change of Surface Temperature.

Article

Last updated: 22 Jan 2023

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Subjects

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Tags

Mechanical Power Engineering

Abstract

This paper presents an analytical procedure for estimation of the unsteady local heat flux to a steady laminar boundary layer a flat plate with a periodic change of surface temperature. The fluid flow is parallel to the plate and the fluid physical properties are taken to be constant, and the plate surface temperature is spatially uniform and  changes with time according to a sinusoidal function. An expression for instantaneous local Nusselt number is drived.
It is found that the instantaneous local value of Nusselt number differs from the quasi-steady value of Nusselt number. The maximum percentage difference between the two values increases by increasing Prandtl number, amplitude and frequency of plate surface temperature oscillation, and distance from the plate leading edge. On the other hand it decreases by increasing the free stream velocity. It is found also that the time mean value of Nusselt of the present work are in agreement with that of previous works.

DOI

10.21608/bfemu.2021.188869

Authors

First Name

Mahmoud

Last Name

Awad

MiddleName

Moustafa Ali

Affiliation

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

Email

profawad@mans.edu.eg

City

Mansoura

Orcid

-

Volume

8

Article Issue

2

Related Issue

25967

Issue Date

1983-12-01

Receive Date

1983-10-10

Publish Date

2021-08-11

Page Start

10

Page End

22

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 8_Issue 2_Pages 10-22.pdf

PDF . 462.4kB

Link

https://bfemu.journals.ekb.eg/article_188869.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=188869

Order

2

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023