The convective heat transfer behavior of a heated cylinder located near a plane surface
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Authors
Gnerlich, Charles Henry
Subjects
Advisors
Cooper, Thomas E.
Date of Issue
1975-06
Date
June 1975
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
An experimental apparatus which will allow the study of the influence of ground effects on a heated cylinder placed in a crossflow of air was designed and constructed. The effects of a wall on the heat transfer characteristics of a heated cylinder were investigated at a Reynolds
number of 153,000 for cylinder to wall spacings ranging from d/r = 0.0 to d/r = 5.33 (maximum), where d = gap width , and r = cylinder radius. Pressure coefficients were obtained at five degree intervals around the cylinder for each experiment.
Experimental results obtained for d/r - 0.0 agreed well with previously reported investigations of a cylinder attached to a wall. Results obtained for d/r = 5.33 agreed well with previous work done with free cylinders. Experiments conducted at intermediate values of d/r resulted in minimum and maximum average Nusselt numbers, suggesting that gap spacing may exert a strong influence on the behavior of the flow field.
Type
Thesis
Description
Series/Report No
Department
Mechanical Engineering
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funding
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.