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Order NowViscosity of some ļ¬uids
Fluid Air (at Benzene Water (at 18 ā¦ C) Olive oil (at 20 ā¦ C) Motor oil SAE 50 Honey Ketchup Peanut butter Tar Earth lower mantle 18 ā¦ C) Viscosity [cP] 0.02638 0.5 1 84 540 2000ā3000 50000ā70000 150000ā250000 3 Ć 1010 3 Ć 1025
Table: Viscosity of some ļ¬uids
Josef MĀ“lek a Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Shear dependent viscosity Models with pressure dependent viscosity Models with stress dependent viscosity Models with discontinuous rheology
Models with variable viscosity
General form: T = āpI + 2Āµ(D, T)D
S
(2.1)
Particular models mainly developed by chemical engineers.
Josef MĀ“lek a
Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Shear dependent viscosity Models with pressure dependent viscosity Models with stress dependent viscosity Models with discontinuous rheology
Ostwaldāde Waele power law
ĀØ Wolfgang Ostwald. Uber die Geschwindigkeitsfunktion der ViskositĀØt disperser Systeme. I. Colloid Polym. Sci., 36:99ā117, a 1925 A. de Waele. Viscometry and plastometry. J. Oil Colour Chem. Assoc., 6:33ā69, 1923 Āµ(D) = Āµ0 |D|nā1 (2.2)
Fits experimental data for: ball point pen ink, molten chocolate, aqueous dispersion of polymer latex spheres
Josef MĀ“lek a
Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Shear dependent viscosity Models with pressure dependent viscosity Models with stress dependent viscosity Models with discontinuous rheology
Carreau CarreauāYasuda
Pierre J. Carreau. Rheological equations from molecular network theories. J.
Rheol., 16(1):99ā127, 1972 Kenji Yasuda. Investigation of the analogies between viscometric and linear viscoelastic properties of polystyrene ļ¬uids. PhD thesis, Massachusetts Institute of Technology. Dept. of Chemical Engineering., 1979 Āµ0 ā Āµā (1 + Ī± |D|2 ) 2 n nā1 a
Āµ(D) = Āµā +
(2.3) (2.4)
Āµ(D) = Āµā + (Āµ0 ā Āµā ) (1 + Ī± |D|a ) Fits experimental data for: molten polystyrene Josef MĀ“lek a Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Shear dependent viscosity Models with pressure dependent viscosity Models with stress dependent viscosity Models with discontinuous rheology
Eyring
Henry Eyring. Viscosity, plasticity, and diļ¬usion as examples of absolute reaction rates. J. Chem. Phys., 4(4):283ā291, 1936 Francis Ree, Taikyue Ree, and Henry Eyring. Relaxation theory of transport problems in condensed systems. Ind. Eng. Chem., 50(7):1036ā1040, 1958 Āµ(D) = Āµā + (Āµ0 ā Āµā ) arcsinh (Ī± |D|) Ī± |D| arcsinh (Ī±1 |D|) arcsinh (Ī±2 |D|) Āµ(D) = Āµ0 + Āµ1 + Āµ2 Ī±1 |D| Ī±2 |D| (2.5) (2.6)
Fits experimental data for: napalm (coprecipitated aluminum salts of naphthenic and palmitic acids; jellied gasoline), 1% nitrocelulose in 99% butyl acetate Josef MĀ“lek a Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Shear dependent viscosity Models with pressure dependent viscosity Models with stress dependent viscosity Models with discontinuous rheology
Cross
Malcolm M. Cross. Rheology of non-newtonian ļ¬uids: A new ļ¬ow equation for pseudoplastic systems. J. Colloid Sci., 20(5):417ā437, 1965 Āµ(D) = Āµā + Āµ0 ā Āµā 1 + Ī± |D|n (2.7)
Fits experimental data for: aqueous polyvinyl acetate dispersion, aqueous limestone suspension
Josef MĀ“lek a
Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Shear dependent viscosity Models with pressure dependent viscosity Models with stress dependent viscosity Models with discontinuous rheology
Sisko
A. W. Sisko. The ļ¬ow of lubricating greases. Ind. Eng. Chem., 50(12):1789ā1792, 1958 Āµ(D) = Āµā + Ī± |D|nā1 Fits experimental data for: lubricating greases (2.8)
Josef MĀ“lek a
Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Shear dependent viscosity Models with pressure dependent viscosity Models with stress dependent viscosity Models with discontinuous rheology
Barus
C. Barus. Isotherms, isopiestics and isometrics relative to viscosity. Amer. J. Sci., 45:87ā96, 1893 Āµ(T) = Āµref eĪ²(pāpref ) Fits experimental data for: mineral oils1 , organic liquids2 (2.9)
Michael M. Khonsari and E. Richard Booser. Applied Tribology: Bearing Design and Lubrication. John Wiley & Sons Ltd, Chichester, second edition, 2008 2 P. W. Bridgman. The eļ¬ect of pressure on the viscosity of forty-four pure liquids. Proc. Am. Acad. Art. Sci., 61(3/12):57ā99, FEB-NOV 1926 Josef MĀ“lek a Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Shear dependent viscosity Models with pressure dependent viscosity Models with stress dependent viscosity Models with discontinuous rheology
Ellis
Seikichi Matsuhisa and R. Byron Bird. Analytical and numerical solutions for laminar ļ¬ow of the non-Newtonian Ellis ļ¬uid. AIChE J., 11(4):588ā595, 1965 Āµ(T) = Āµ0 1 + Ī± |TĪ“ |nā1 (2.10)
Fits experimental data for: 0.6% w/w carboxymethyl cellulose (CMC) solution in water, poly(vynil chloride)3
T. A. Savvas, N. C. Markatos, and C. D. Papaspyrides. On the ļ¬ow of non-newtonian polymer solutions. Appl. Math. Modelling, 18(1):14ā22, 1994 Josef MĀ“lek a Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Shear dependent viscosity Models with pressure dependent viscosity Models with stress dependent viscosity Models with discontinuous rheology
Glen
J. W. Glen. The creep of polycrystalline ice. Proc. R. Soc. A-Math. Phys. Eng. Sci., 228(1175):519ā538, 1955 Āµ(T) = Ī± |TĪ“ |nā1 Fits experimental data for: ice (2.11)
Josef MĀ“lek a
Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Shear dependent viscosity Models with pressure dependent viscosity Models with stress dependent viscosity Models with discontinuous rheology
Seely
Gilbert R. Seely. Non-newtonian viscosity of polybutadiene solutions. AIChE J., 10(1):56ā60, 1964 Āµ(T) = Āµā + (Āµ0 ā Āµā ) e ā |TĪ“ |
Ļ0
(2.12)
Fits experimental data for: polybutadiene solutions
Josef MĀ“lek a
Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Shear dependent viscosity Models with pressure dependent viscosity Models with stress dependent viscosity Models with discontinuous rheology
Blatter
Erin C. Pettit and Edwin D. Waddington. Ice ļ¬ow at low deviatoric stress. J. Glaciol., 49(166):359ā369, 2003 H Blatter. Velocity and stress-ļ¬elds in grounded glaciers ā a simple algorithm for including deviatoric stress gradients. J. Glaciol., 41(138):333ā344, 1995 Āµ(T) = 2
A |TĪ“ | +
2 Ļ0
nā1 2
(2.13)
Fits experimental data for: ice
Josef MĀ“lek a
Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Shear dependent viscosity Models with pressure dependent viscosity Models with stress dependent viscosity Models with discontinuous rheology
Bingham HerschelāBulkley
C. E. Bingham. Fluidity and plasticity. McGrawāHill, New York, 1922 Winslow H. Herschel and Ronald Bulkley. Konsistenzmessungen von Gummi-BenzollĀØsungen. Colloid Polym. Sci., 39(4):291ā300, o August 1926 |TĪ“
| > Ļ ā |TĪ“ | ā¤ Ļ ā if and only if TĪ“ = Ļ ā if and only if D=0 D + 2Āµ(|D|)D |D|
(2.14)
Fits experimental data for: paints, toothpaste, mango jam
Santanu Basu and U.S. Shivhare. Rheological, textural, micro-structural and sensory properties of mango jam. J. Food Eng., 100(2):357ā365, 2010 Josef MĀ“lek a Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
RivlināEricksen ļ¬uids
RivlināEricksen
R. S. Rivlin and J. L. Ericksen. Stress-deformation relations for isotropic materials. J. Ration. Mech. Anal., 4:323ā425, 1955 R. S. Rivlin and K. N. Sawyers. Nonlinear continuum mechanics of viscoelastic ļ¬uids. Annu. Rev. Fluid Mech., 3:117ā146, 1971 General form: T = āpI + f(A1 A2 A3 . . . ) (3.1) where A1 = 2D dAnā1 + Anā1 L + L Anā1 An = dt (3.2a) (3.2b)
d where dt denotes the usual Lagrangean time derivative and L is the velocity gradient. Josef MĀ“lek a Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
RivlināEricksen ļ¬uids
CriminaleāEricksenāFilbey
William O. Criminale, J. L. Ericksen, and G. L. Filbey. Steady shear ļ¬ow of non-Newtonian ļ¬uids. Arch. Rat. Mech. Anal., 1:410ā417, 1957 T = āpI + Ī±1 A1 + Ī±2 A2 + Ī±3 A2 1 (3.3)
Fits experimental data for: polymer melts (explains mormal stress diļ¬erences)
Josef MĀ“lek a
Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
RivlināEricksen ļ¬uids
ReinerāRivlin
M. Reiner. A mathematical theory of dilatancy. Am. J. Math., 67(3):350ā362, 1945 T = āpI + 2ĀµD + Āµ1 D2 Fits experimental data for: N/A (3.4)
Josef MĀ“lek a
Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Maxwell, Oldroyd, Burgers Giesekus Phan-ThienāTanner JohnsonāSegalman JohnsonāTevaarwerk
Maxwell
J. Clerk Maxwell. On the dynamical theory of gases. Philos. Trans. R. Soc., 157:49ā88, 1867
T = āpI + S S + Ī»1 S = 2ĀµD dM ā LM ā ML dt Fits experimental data for: N/A M =def Josef MĀ“lek a Non-Newtonian ļ¬uids
(4.1a) (4.1b)
(4.2)
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Maxwell, Oldroyd, Burgers Giesekus Phan-ThienāTanner JohnsonāSegalman JohnsonāTevaarwerk
Oldroyd-B
J. G. Oldroyd. On the formulation of rheological equations of state. Proc. R. Soc. A-Math. Phys. Eng. Sci., 200(1063):523ā541, 1950
T = āĻI + S S + Ī»S = Ī·1 A1 + Ī·2 A1 Fits experimental data for: N/A
(4.3a) (4.3b)
Josef MĀ“lek a
Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Maxwell, Oldroyd, Burgers Giesekus Phan-ThienāTanner JohnsonāSegalman JohnsonāTevaarwerk
Oldroyd 8-constants
J. G. Oldroyd. On the formulation of rheological equations of state. Proc. R. Soc. A-Math. Phys. Eng. Sci., 200(1063):523ā541, 1950 T = āĻI + S Ī»3 Ī»5 Ī»6 (DS + SD) + (Tr S) D + (S : D) I 2 2 2 Ī»7 (D : D) I = āĀµ D + Ī»2 D + Ī»4 D2 + 2 (4.4a)
S + Ī»1 S +
(4.4b)
Fits experimental data for: N/A
Josef MĀ“lek a Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Maxwell, Oldroyd, Burgers Giesekus Phan-ThienāTanner JohnsonāSegalman JohnsonāTevaarwerk
Burgers
J. M. Burgers. Mechanical considerations ā model systems ā phenomenological theories of relaxation and viscosity. In First report on viscosity and plasticity, chapter 1, pages 5ā67. Nordemann Publishing, New York, 1939
T = āĻI + S S + Ī»1 S + Ī»2 S = Ī·1 A1 + Ī·2 A1 Fits experimental data for: N/A
(4.5a) (4.5b)
Josef MĀ“lek a
Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Maxwell, Oldroyd, Burgers Giesekus Phan-ThienāTanner JohnsonāSegalman JohnsonāTevaarwerk
Giesekus
H. Giesekus. A simple constitutive equation for polymer ļ¬uids based on the concept of deformation-dependent tensorial mobility. J. Non-Newton. Fluid Mech., 11(1-2):69ā109, 1982
T = āĻI + S S + Ī»S ā Ī±Ī»2 2 S = āĀµD Āµ
(4.6a) (4.6b)
Fits experimental data for: N/A
Josef MĀ“lek a
Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Maxwell, Oldroyd, Burgers Giesekus Phan-ThienāTanner JohnsonāSegalman JohnsonāTevaarwerk
Phan-ThienāTanner
N. Phan Thien. Non-linear network viscoelastic model. J. Rheol., 22(3):259ā283, 1978 N. Phan Thien and Roger I. Tanner. A new constitutive equation derived from network theory. J. Non-Newton. Fluid Mech., 2(4):353ā365, 1977
T = āĻI + S Y S + Ī»S + Ī»Ī¾ (DS + SD) = āĀµD 2 Y =e Fits experimental data for: N/A Josef MĀ“lek a Non-Newtonian ļ¬uids
(4.7a) (4.7b) (4.7c)
āĪµ Ī» Tr S Āµ
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Maxwell, Oldroyd, Burgers Giesekus Phan-ThienāTanner JohnsonāSegalman JohnsonāTevaarwerk
JohnsonāSegalman
M. W. Johnson and D. Segalman. A model for viscoelastic ļ¬uid behavior which allows non-aļ¬ne deformation. J. Non-Newton. Fluid Mech., 2(3):255ā270, 1977
T = āpI + S (4.8a) S = 2ĀµD + S (4.8b) S +Ī» dS + S (W ā aD) + (W ā aD) S dt = 2Ī·D (4.8c)
Fits experimental data for: spurt
Josef MĀ“lek a Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
Maxwell, Oldroyd, Burgers Giesekus Phan-ThienāTanner JohnsonāSegalman JohnsonāTevaarwerk
JohnsonāTevaarwerk
K. L. Johnson and J. L. Tevaarwerk. Shear behaviour of elastohydrodynamic oil ļ¬lms. Proc. R. Soc. A-Math. Phys. Eng. Sci., 356(1685):215ā236, 1977
T = āpI + S S S + Ī± sinh = 2ĀµD s0 Fits experimental data for: lubricants
(4.9a) (4.9b)
Josef MĀ“lek a
Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
KayeāBernsteināKearsleyāZapas
KayeāBernsteināKearsleyāZapas
B. Bernstein, E. A. Kearsley, and L. J. Zapas. A study of stress relaxation with ļ¬nite strain. Trans. Soc. Rheol., 7(1):391ā410, 1963 I-Jen Chen and D. C. Bogue. Time-dependent stress in polymer melts and review of viscoelastic theory. Trans. Soc. Rheol., 16(1):59ā78, 1972 t
T=
Ī¾=āā
āW ā1 āW C+ C dĪ¾ āI āII
(5.1)
Fits experimental data for: polyisobutylene, vulcanised rubber
Josef MĀ“lek a
Non-Newtonian ļ¬uids
Viscosity of some ļ¬uids Models with variable viscosity Diļ¬erential type models Rate type models Integral type models Download
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Josef MĀ“lek a
Non-Newtonian ļ¬uids