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Trouton ratio
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Branches of physics
Fluid mechanics
Rheology
Non-Newtonian fluid
Viscoelasticity
Extensional viscosity
Created
2026-09-24
Updated
2026-09-24
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The
Trouton ratio
is
extensional viscosity
divided by shear
viscosity
. It approaches three for an incompressible Newtonian fluid in uniaxial extension.
Ancestors
(8)
Extensional viscosity
Viscoelasticity
Non-Newtonian fluid
Rheology
Fluid mechanics
Branches of physics
Physics
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Extensional equations for a slender Newtonian column
Johnson-Segalman extensional response
Past exam of the mathematics course of the University of Cambridge
/
2001
/
iii
/
Paper 49
/
3
/
c
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2002
/
iii
/
Paper 53
/
3
/
c
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2004
/
iii
/
Paper 78
/
1
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2009
/
iii
/
Paper 74
/
3
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2012
/
iii
/
Paper 75
/
3
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2015
/
iii
/
Paper 73
/
2
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2017
/
iii
/
Paper 329
/
2
/
a
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2021
/
iii
/
Paper 352
/
2
/
b
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2024
/
iii
/
Paper 329
/
3
/
b
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2025
/
iii
/
Paper 329
/
2
/
a
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2025
/
iii
/
Paper 352
/
2
/
c
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2026
/
iii
/
Paper 352
/
2
/
c
/
ii
/
Solution
Slender viscous thread
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