Abstract
A theory is proposed in which the stress tensor is a function of the components of the rate of deformation tensor and a symmetric tensor describing the microscopic structure of a fluid. The expression for the stress tensor can be written in closed form using results from the Hamilton-Cayley theorem. This theory is shown to contain Prager's theory of dumbbell suspensions as a special case. By limiting the type of terms in the constitutive equations, various stress components can be evaluated for simple shear. These exhibit non-Newtonian behaviour typical of certain higher polymer solutions.Some of the results of the anisotropic fluid theory are compared with experimental measurements of normal stress and apparent viscosity. Certain high polymers in solution show good agreement between theory and experiment, at least for low enough values of the rate of shear.
References
10
Referenced
281
-
Kotaka, T. , Kurata, M. & Tamura, M. 1957 Normal stress effect in polymer solutions.J. Appl. Phys. 30,1705–1712.
(
10.1063/1.1735041
) - Greensmith, H. W. & Rivlin, R. S. 1953 The hydrodynamics of non-Newtonian fluids. III. The normal stress effect in high polymer solutions.Proc. Roy. Soc. A,245,399–428.
-
Prager, S. 1957 Stress-strain relations in a suspension of dumbbells.Trans. Soc. Rheology,1,53–62.
(
10.1122/1.548808
) -
Noll, W. 1955 On the continuity of the solid and fluid states.J. Rat. Mech. Anal.,4,3–81.
(
10.1512/iumj.1955.4.54001
) -
Jeffery, G. B. 1922 The motion of ellipsoidal particles immersed in a viscous fluid.Proc. Roy. Soc. A,102,161–179.
(
10.1098/rspa.1922.0078
) -
Markovitz, H. & Williamson, R. B. 1957 Normal stress effect in polyisobutylene solutions. I. Measurements in a cone and plate instrument.Trans. Soc. Rheology,1,25–36.
(
10.1122/1.548803
) -
Ericksen, J. L. 1959 Anisotropic fluids.Arch. Rat. Mech. Anal.,4,231–237.
(
10.1007/BF00281389
) -
Ericksen, J. L. 1960 Transversely isotropic fluids.Kolloid. Z.,173,117–122.
(
10.1007/BF01502416
) -
Kuhn, W. & Kuhn, H. 1945 Die Abhängigkeit der Viskosität vom Strömungsgefälle bei hochverdÜnnten Suspensionen und Lösungen.Helv. Chim. Acta,28,97–127.
(
10.1002/hlca.19450280111
) -
Rivlin, R. S. 1955 Further remarks on the stress-deformation relations for isotropic materials.J. Rat. Mech. Anal.,4,681–702.
(
10.1512/iumj.1955.4.54025
)
Dates
Type | When |
---|---|
Created | 19 years, 5 months ago (March 28, 2006, 6:01 a.m.) |
Deposited | 6 years, 4 months ago (April 8, 2019, 2:55 p.m.) |
Indexed | 1 month, 1 week ago (July 24, 2025, 6:58 a.m.) |
Issued | 63 years, 4 months ago (May 1, 1962) |
Published | 63 years, 4 months ago (May 1, 1962) |
Published Online | 19 years, 5 months ago (March 28, 2006) |
Published Print | 63 years, 4 months ago (May 1, 1962) |
@article{Hand_1962, title={A theory of anisotropic fluids}, volume={13}, ISSN={1469-7645}, url={http://dx.doi.org/10.1017/s0022112062000476}, DOI={10.1017/s0022112062000476}, number={1}, journal={Journal of Fluid Mechanics}, publisher={Cambridge University Press (CUP)}, author={Hand, George L.}, year={1962}, month=may, pages={33–46} }