Annular Flows for Measuring the Second Normal Stress Difference
作者:
R. I. Tanner,
期刊:
Transactions of the Society of Rheology
(AIP Available online 1967)
卷期:
Volume 11,
issue 3
页码: 347-360
ISSN:0148-6055
年代: 1967
DOI:10.1122/1.549084
出版商: The Society of Rheology
数据来源: AIP
摘要:
Experimental problems arising in the measurement of the second normal stress difference are discussed. An approximate method (with error estimates) for inversion of experimental data is given. A potentially exact numerical approach for data inversion is also suggested. Some results on polyisobutylene‐cetane solutions are shown to be in close agreement with previously published work. Finally, an adaptation of the given technique for finding the first normal stress difference without the use of rotating parts is considered.
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