Question

2 The following data were obtained for a solution 2% ($\beta\/\beta$) PIB (polyisobutylene) in Primol-355 at 25°C Viscosity (Pa.s) Shear rate (s?¹) 6560 0.00173 5770 0.00274 4990 0.00434 4200 0.00866 3220 0.0137 2190 0.0274 1640 0.0434 1050 0.0866 766 0.137 490 0.274 348 0.434 223 0.866 163 1.37 104 2.74 77 4.34 68 5.46 58 6.88 Find the constants of the Cross and Carreau models that describe these data and plot the graphs of ($\mu$) vs. ($\gamma$) ?? ??????????? ???????. Finally plot the flow curve of this solution.

          2
The following data were obtained for a solution 2% (\(\beta\/\beta\)) PIB (polyisobutylene)
in Primol-355 at 25°C
Viscosity (Pa.s)	Shear rate (s?¹)
6560	0.00173
5770	0.00274
4990	0.00434
4200	0.00866
3220	0.0137
2190	0.0274
1640	0.0434
1050	0.0866
766	0.137
490	0.274
348	0.434
223	0.866
163	1.37
104	2.74
77	4.34
68	5.46
58	6.88
Find the constants of the Cross and Carreau models that describe these data and plot the
graphs of (\(\mu\)) vs. (\(\gamma\)) ?? ??????????? ???????. Finally plot the flow curve of this solution.

$2 The following data were obtained for a solution 2% ($\beta\/\beta$) PIB (polyisobutylene) in Primol-355 at 25°C Viscosity (Pa.s) Shear rate (s?¹) 6560 0.00173 5770 0.00274 4990 0.00434 4200 0.00866 3220 0.0137 2190 0.0274 1640 0.0434 1050 0.0866 766 0.137 490 0.274 348 0.434 223 0.866 163 1.37 104 2.74 77 4.34 68 5.46 58 6.88 Find the constants of the Cross and Carreau models that describe these data and plot the graphs of (μ) vs. (γ) ?? ??????????? ???????. Finally plot the flow curve of this solution.$

Added by Joseph M.

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