On the normal stress effects of incompressible non-newtonian fluids |
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Authors: | Subramaniya Hariharan |
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Affiliation: | Institute for Computer Applications in Science and Engineering, NASA Langley Research Center, Hampton, Virginia 23665, USA U.S.A. |
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Abstract: | There are various viscometric flow models available at present to determine the mechanical properties of incompressible non-Newtonian fluids. In most of these, measurement of the normal stresses is quite a challenge. We introduce a new viscometric flow model and derive a theory for the measurement of the “second normal stress”. We also indicate how such a measurement can be performed in practice. |
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