End effects in rotational viscometry II. Pseudoplastic fluids at elevated Reynolds number

Verfasser / Beitragende:
[Ondřej Wein, Věra Pěnkavová, Jaromír Havlica]
Ort, Verlag, Jahr:
2015
Enthalten in:
Rheologica Acta, 54/11-12(2015-12-01), 903-914
Format:
Artikel (online)
ID: 605466785
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024 7 0 |a 10.1007/s00397-015-0878-3  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00397-015-0878-3 
245 0 0 |a End effects in rotational viscometry II. Pseudoplastic fluids at elevated Reynolds number  |h [Elektronische Daten]  |c [Ondřej Wein, Věra Pěnkavová, Jaromír Havlica] 
520 3 |a Neglecting of end effects in rotational viscometry introduces 10-30 % error in the estimate of shear stress σ R at surface of rotating cylindrical spindle. Actual values of the correction coefficient c L for a real sensor depend on pseudoplasticity level of a given sample (measured by the flow-behavior index n) and inertia level (measured by the Reynolds number Re). The correction coefficients for the real sensors with coaxial cylinders are calculated by solving the related flow problem for Generalized Newtonian Fluid with power-law viscosity function. In addition to the cylindrical sensors according to ISO 3219 CEN Bruxelles 53:019, (1994) , also some clones with different geometry simplex H = h/R are considered. The results on c L (n, Re, H) are presented as a simple empirical formula for easy use in downstream treatment of primary data using the pseudosimilarity approach. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Rotational Couette viscometry  |2 nationallicence 
690 7 |a Pseudoplastic fluids  |2 nationallicence 
690 7 |a End effects  |2 nationallicence 
690 7 |a Inertia effects  |2 nationallicence 
700 1 |a Wein  |D Ondřej  |u Institute of Chemical Process Fundamentals ASCR, Rozvojová 135, 16502, Prague, Czech Republic  |4 aut 
700 1 |a Pěnkavová  |D Věra  |u Institute of Chemical Process Fundamentals ASCR, Rozvojová 135, 16502, Prague, Czech Republic  |4 aut 
700 1 |a Havlica  |D Jaromír  |u Institute of Chemical Process Fundamentals ASCR, Rozvojová 135, 16502, Prague, Czech Republic  |4 aut 
773 0 |t Rheologica Acta  |d Springer Berlin Heidelberg  |g 54/11-12(2015-12-01), 903-914  |x 0035-4511  |q 54:11-12<903  |1 2015  |2 54  |o 397 
856 4 0 |u https://doi.org/10.1007/s00397-015-0878-3  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00397-015-0878-3  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wein  |D Ondřej  |u Institute of Chemical Process Fundamentals ASCR, Rozvojová 135, 16502, Prague, Czech Republic  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Pěnkavová  |D Věra  |u Institute of Chemical Process Fundamentals ASCR, Rozvojová 135, 16502, Prague, Czech Republic  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Havlica  |D Jaromír  |u Institute of Chemical Process Fundamentals ASCR, Rozvojová 135, 16502, Prague, Czech Republic  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Rheologica Acta  |d Springer Berlin Heidelberg  |g 54/11-12(2015-12-01), 903-914  |x 0035-4511  |q 54:11-12<903  |1 2015  |2 54  |o 397