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Non-Newtonian Fluid Dynamics in High Temperature High Shear Capillary Viscometers
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Abstract
This paper presents computer simulations of HTHS capillary viscometer dynamics for non-newtonian oils. The main objectives are to promote a deeper understanding of HTHS capillary viscometry and to support, on a theoretical basis, the empirical procedural modifications endorsed by ASTM. These modifications are explained by the fundamental behavior of non-newtonian fluids in capillaries.
Current ASTM HTHS viscosity measurements use instruments in one of two categories: rotational or capillary. An initial discrepancy between the results from these two geometries motivated ASTM to re-examine the basics of HTHS viscometry, and resulted in modifications to the capillary procedures. These modifications were supported by limited experimental data suggesting the elimination of the previous discrepancy. This paper explains the physical cause of the discrepancy and the success of the procedural modification.
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Girshick, F., "Non-Newtonian Fluid Dynamics in High Temperature High Shear Capillary Viscometers," SAE Technical Paper 922288, 1992, https://doi.org/10.4271/922288.Also In
References
- SAE J 300 Engine Oil Viscosity Classification
- ASTM Test Method D 4683 Standard Test Method for Measuring Viscosity at High Temperature and High Shear Rate by Tapered Bearing Simulator
- ASTM Test Method D 4741 Standard Test Method for Measuring Viscosity at High Temperature and High Shear Rate by Tapered Plug Viscometer
- ASTM Test Method D 4624 Standard Test Method to Measure Apparent Viscosity by Capillary Viscometer at High Temperature and High Shear Rates
- Brodnyan, J.G. Gaskins, F.H. Philippoff, W. Correlation Between Rheological Parameters Measured in Instruments of Different Geometries Symposium on Non-Newtonian Viscometry October 11 1960 ASTM 1962
- Bird, R. B. Armstrong, R. C. Hassager, O. Dynamics of Polymeric Liquids 1 John Wiley & Sons 1977
- Ostwald, W. Kolloid-Z. 36 99 117 1925
- de Waele Oil and Color Chem. Assoc. Journal 6 33 88 1923
- Turian, R. M. University of Wiscosin Madison 1964
- Carreau, P. J. University of Wisconsin Madison 1968
- ASTM Test Method D 341 Standard Viscosity-Temperature Charts for Liquid Petroleum Products
- ASTM Test Method D 2270 Standard Practice for Calculating Viscosity Index from Kinematic Viscosity at 40 and 100°C
- Barus, C. Isothermals, Isopiestics, and Isometrics Relative to Viscosity Am. J. Sci. 45 87 96 1893
- Appeldoorn, J. K. SAE Journal 71 108 June 1963
- Van Wazer, J. R. Lyons, J. W. Kim, K. Y. Colwell, R. E. Viscosity and Flow Measurment A Laboratory Handbook of Rheology 1963
- Rabinowitsch, B. Z. physik. Chem (Leipzig) 145A 1 1929
- ASTM Test Method D 445 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and the Calculation of Dynamic Viscosity)
- ASTM Test Method D 5293 Standard Test Method for Apparent Viscosity of Engine Oils Between -30 and -5°C Using the Cold Cranking Simulator
- Standard Test Method for Measuring Apparent Viscosity at High Temperature and High Shear Rate by Multicell Capillary Viscometer
- Gerrard, J. E. Steidler, F. E. Appeldoorn, J. K. I&EC Fundamentals 4 332 1965
- Gerrard, J. E. Steidler, F. E. Appeldoorn, J. K. I&EC Fundamentals 5 260 1966
- Appeldoorn, J.K. Devore, D. I. Limitations in Capillary Viscometry SAE Paper 801389
- Wall, J.C. An Engineering Analysis of Thermal Effects in the Concentric-Cylinder High Shear Rate Viscometer SAE Paper 810823