Author

Haibo Tong

Publication Date

1997

Document Type

Dissertation/Thesis

First Advisor

Kostic, Milivoje

Degree Name

M.S. (Master of Science)

Department

Department of Mechanical Engineering

LCSH

Fluid dynamics||Heat--Conduction||Shear flow

Abstract

The purpose of this research is to employ an innovative method to measure the non-Newtonian fluid thermal conductivity while in shearing flow, and to determine its dependence on the shearing itself. A coaxial cylinder apparatus with a rotating outer cylinder was used for the determination of the thermal conductivity. The measurement and control are accomplished and integrated by using a computerized data acquisition system and a comprehensive virtual instrument, developed using the LabVIEW application software. It was found that the thermal conductivity of a Newtonian fluid, such as distilled water, was virtually independent of the fluid motion. However, for non-Newtonian fluids such as aqueous polyacrylamide solutions (1000 and 2000 wppm Praestol solutions), there was a 10-20% increase of thermal conductivity in the operating shear rate range (40

Comments

Includes bibliographical references (pages [64]-65)

Extent

xi, 85 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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