Long Bubble Penetration through Viscoelastic Fluids in a Suddenly Contracting and Expanding Tube

Table 2

Physical properties of viscoelastic fluid.

Solution	(°C)	Density ρ (kg/cm^3)	Surface tension σ (mN/m)
1.5 wt% CMC in water	25	1004.07	73.7
0.5 wt% CMC in water	25	945.07	73.3
1.5 wt% PAA in water	25	1008.87	73.0
0.5 wt% PAA in water	25	989.03	71.0
1.5 wt% PAS in water	25	998.67	74.4
0.5 wt% PAS in water	25	991.83	69.1