Publication:
Natural convection heat transfer from a horizontal disk in a cylindrical enclosure

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Authors
Duncan, Duane Stewart Jr.
Subjects
Natural convection
Horizontal heat transfer
Advisors
Marto, P.J.
Date of Issue
1971-12
Date
December 1971
Publisher
Monterey, California; Naval Postgraduate School
Language
en_US
Abstract
This thesis studied natural convection in water from a horizontal mirror finished disk, heated in the center and surrounded by a cylindrical enclosure. The test section was designed to insure a one dimensional heat flux. Measurements were taken with power inputs varying from 25 to 5 watts. Fluid depth had a definite effect on the heat transfer. An apparent maximum value existed at a ratio of enclosure radius to fluid depth of one. Comparison of the data with existing correlation however, was poor which led to the questioning of the validity of the assumed one dimensional heat flux. Use of a finite element computer program demonstrated that two dimensional effects were important. Subsequent modification of the hear transfer coefficient to account for this variation gave a correlation more in agreement with those existing in the literature.
Type
Thesis
Description
Series/Report No
Department
Mechanical Engineering
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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