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Part I. Temperature gradients in turbulent gas streams effect of viscous dissipation on the evaluation of total conductivity. Part II. Thermal transfer from small wires in the boundary flow about a cylinder

Citation

Venezian, Emilio Cesare (1962) Part I. Temperature gradients in turbulent gas streams effect of viscous dissipation on the evaluation of total conductivity. Part II. Thermal transfer from small wires in the boundary flow about a cylinder. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechTHESIS:08192011-105606734

Abstract

Part I. Values of the total conductivity for air in turbulent flow were originally reported without regard to effects of viscous dissipation. The reported values were corrected for such effects by utilizing measurements taken at the time of the original investigation. The total conductivity obtained by taking into account dissipation effects was found to be independent of the average temperature gradient with which measurements were made. Part II. The heat transfer characteristics from a 0.001-inch diameter platinum wire in the boundary flow about a 1-inch copper cylinder were measured at Reynolds numbers, based on the cylinder diameter of about 1750, 3500 and 7100. The results are presented in terms of the Nusselt number for the wire as a function of position for the three Reynolds numbers investigated. Comparison of the measured Nusselt numbers with values predicted from calculated velocity distributions indicate that, in the vicinity of the cylinder wall, the Nusselt number is not a unique function of the Reynolds number based on the wire diameter.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Chemical Engineering
Degree Grantor:California Institute of Technology
Division:Chemistry and Chemical Engineering
Major Option:Chemical Engineering
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Sage, Bruce H.
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1962
Funders:
Funding AgencyGrant Number
Peter E. Fluor FoundationUNSPECIFIED
Record Number:CaltechTHESIS:08192011-105606734
Persistent URL:http://resolver.caltech.edu/CaltechTHESIS:08192011-105606734
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6606
Collection:CaltechTHESIS
Deposited By: Benjamin Perez
Deposited On:19 Aug 2011 20:19
Last Modified:26 Dec 2012 04:38

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