The influence of artificial cavities on natural convection heat transfer from a horizontal surface
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Authors
Penkitti, Apichart
Subjects
Natural Convection
Horizontal Disk
Cylindrical Enclosure
Horizontal Disk
Cylindrical Enclosure
Advisors
Kelleher, Matthew D.
Date of Issue
1975-12
Date
December 1975
Publisher
Monterey, California. Naval Postgraduate School
Language
Abstract
The objective of this project was to study the effect of small artificial cavities on natural convection from a horizontal surface. Tests were run with Freon 113. Data for heat flux as a function of bulk temperature difference were carefully obtained. These data yielded Nusselt number as a function of Grashof number or Rayleigh number. All of these were then compared with the data obtained by Hiep [Ref. 2]. Experimental results are presented for the heat transfer from horizontal circular disks, with and without artificial cavities. The artificial cavities were found to affect the natural convection heat transfer from a horizontal surface: the heat transfer coefficients increased with the number of cavities.
Type
Thesis
Description
Series/Report No
Department
Mechanical Engineering
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
65 p.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
Copyright is reserved by the copyright owner.