30.1.21 Carreau
Contents
Function
![y=A_{2}+(A_{1}-A_{2})[1+(tx)^{a}]^{\frac{n-1}{a}}](/origin-help/en/images/Carreau/math-2a5e177df5333db67ca1608b920108fd.png?v=0 "y=A_{2}+(A_{1}-A_{2})[1+(tx)^{a}]^{\frac{n-1}{a}}")
Brief Description
Carreau-Yasuda model to describe pseudoplastic flow with asymptotic viscosities at zero and infinite shear rates.
Sample Curve
Parameters
Number: 5
Names: A1, A2, t, a, n
Meanings: A1 = zero shear viscosity, A2 = infinite shear viscosity, t = time constant, a = transition control factor, n = power index
Lower Bounds: A1 > 0, A2 > 0, t > 0, a > 0, n >= 0
Upper Bounds: none
Derived Parameters
Script Access
nlf_Carreau(x,A1,A2,t,a,n)
Function File
fitfunc\Carreau.fdf
Category
Rheology